Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Os(CO)4”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Os(CO)4 by Materials Project

Os(CO)4 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of eight Os(CO)4 clusters. In four of the Os(CO)4 clusters, Os2- is bonded in a rectangular see-saw-like geometry to four C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.96 Å. There are four inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In four of the Os(CO)4 clusters, Os2- is bonded in a rectangular see-saw-like geometry to four C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.90–1.96 Å. There are four inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os(CO)4 by Materials Project

Os(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of twelve Os(CO)4 clusters. In four of the Os(CO)4 clusters, Os2- is bonded in a see-saw-like geometry to four C+2.50+ atoms. There is two shorter (1.91 Å) and two longer (1.96 Å) Os–C bond length. There are four inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In eight of the Os(CO)4 clusters, Os2- is bonded in a see-saw-like geometry to four C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.90–1.96 Å. There are four inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os5(CO)19 by Materials Project

Os(CO)3(Os(CO)4)4 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os(CO)3 clusters and eight Os(CO)4 clusters. In each Os(CO)3 cluster, Os+1.20- is bonded in a T-shaped geometry to three C+2.32+ atoms. There is one shorter (1.89 Å) and two longer (1.94 Å) Os–C bond length. There are three inequivalent C+2.32+ sites. In the first C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In two of the Os(CO)4 clusters, Os+1.20- is bonded in a rectangular see-saw-like geometry to four C+2.32+ atoms. There are a spread of Os–C bond distances ranging from 1.90–1.96 Å. There are four inequivalent C+2.32+ sites. In the first C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.15 Å. In the second C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.32+ site, C+2.32+ is bonded in a linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In two of the Os(CO)4 clusters, Os+1.20- is bonded in a rectangular see-saw-like geometry to four C+2.32+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.97 Å. There are four inequivalent C+2.32+ sites. In the first C+2.32+ site, C+2.32+ is bonded in a linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.15 Å. In the third C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.32+ site, C+2.32+ is bonded in a linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In two of the Os(CO)4 clusters, Os+1.20- is bonded in a rectangular see-saw-like geometry to four C+2.32+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.96 Å. There are four inequivalent C+2.32+ sites. In the first C+2.32+ site, C+2.32+ is bonded in a linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In two of the Os(CO)4 clusters, Os+1.20- is bonded in a rectangular see-saw-like geometry to four C+2.32+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.96 Å. There are four inequivalent C+2.32+ sites. In the first C+2.32+ site, C+2.32+ is bonded in a linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.32+ site, C+2.32+ is bonded in a distorted linear geometry to one Os+1.20- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.32+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os2(CO)7 by Materials Project

Os(CO)3Os(CO)4 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight Os(CO)3 clusters and eight Os(CO)4 clusters. In each Os(CO)3 cluster, Os2- is bonded in a 3-coordinate geometry to three C+2.57+ atoms. There are a spread of Os–C bond distances ranging from 1.88–1.92 Å. There are three inequivalent C+2.57+ sites. In the first C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In each Os(CO)4 cluster, Os2- is bonded in a rectangular see-saw-like geometry to four C+2.57+ atoms. There is two shorter (1.92 Å) and two longer (1.98 Å) Os–C bond length. There are four inequivalent C+2.57+ sites. In the first C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.57+ site, C+2.57+ is bonded in a distorted single-bond geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.57+ site, C+2.57+ is bonded in a distorted single-bond geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the fourth C+2.57+ site, C+2.57+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.57+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os5(CO)16 by Materials Project

(Os(CO)3)4Os(CO)4 crystallizes in the trigonal P3_121 space group. The structure is zero-dimensional and consists of twelve Os(CO)3 clusters and three Os(CO)4 clusters. In each Os(CO)3 cluster, Os+1.60- is bonded in a distorted T-shaped geometry to three C+2.50+ atoms. There is one shorter (1.89 Å) and two longer (1.90 Å) Os–C bond length. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In each Os(CO)4 cluster, Os+1.60- is bonded in a see-saw-like geometry to four C+2.50+ atoms. There is two shorter (1.94 Å) and two longer (1.98 Å) Os–C bond length. There are two inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted single-bond geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os5(CO)16 by Materials Project

(Os(CO)3)4Os(CO)4 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of eight Os(CO)3 clusters and two Os(CO)4 clusters. In two of the Os(CO)3 clusters, Os+1.60- is bonded in a 3-coordinate geometry to three C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.87–1.93 Å. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. In the second C+2.50+ site, C+2.50+ is bonded in a 1-coordinate geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In two of the Os(CO)3 clusters, Os+1.60- is bonded in a 3-coordinate geometry to three C+2.50+ atoms. There is one shorter (1.90 Å) and two longer (1.92 Å) Os–C bond length. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In two of the Os(CO)3 clusters, Os+1.60- is bonded in a 3-coordinate geometry to three C+2.50+ atoms. There is two shorter (1.89 Å) and one longer (1.92 Å) Os–C bond length. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In two of the Os(CO)3 clusters, Os+1.60- is bonded in a 3-coordinate geometry to three C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.87–1.91 Å. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.17 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In each Os(CO)4 cluster, Os+1.60- is bonded in a rectangular see-saw-like geometry to four C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.97 Å. There are four inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.15 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os+1.60- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2Os4Pt(CO)15 by Materials Project

Os3PtH2(CO)11Os(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four Os(CO)4 clusters and four Os3PtH2(CO)11 clusters. In each Os(CO)4 cluster, Os+1.50- is bonded in a rectangular see-saw-like geometry to four C+2.40+ atoms. There are a spread of Os–C bond distances ranging from 1.90–1.95 Å. There are four inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.17 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In each Os3PtH2(CO)11 cluster, there are three inequivalent Os+1.50- sites. In the first Os+1.50- site, Os+1.50- is bonded in a 4-coordinate geometry to three C+2.40+ and one H1+ atom. There are a spread of Os–C bond distances ranging from 1.90–1.92 Å. The Os–H bond length is 1.86 Å. In the second Os+1.50- site, Os+1.50- is bonded in a 4-coordinate geometry to three C+2.40+ and one H1+ atom. There is one shorter (1.90 Å) and two longer (1.91 Å) Os–C bond length. The Os–H bond length is 1.86 Å. In the third Os+1.50- site, Os+1.50- is bonded in a 6-coordinate geometry to one Pt2-, three C+2.40+, and two H1+ atoms. The Os–Pt bond length is 2.76 Å. There is two shorter (1.91 Å) and one longer (1.92 Å) Os–C bond length. There is one shorter (1.81 Å) and one longer (1.82 Å) Os–H bond length. Pt2- is bonded in a distorted water-like geometry to one Os+1.50- and two C+2.40+ atoms. There is one shorter (1.91 Å) and one longer (1.92 Å) Pt–C bond length. There are eleven inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Pt2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Pt2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.17 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.17 Å. In the fifth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.17 Å. In the sixth C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.17 Å. In the seventh C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the ninth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os+1.50- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Os+1.50- atoms. In the second H1+ site, H1+ is bonded in a water-like geometry to two Os+1.50- atoms. There are eleven inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HOs6C18S2O19 by Materials Project

Os(CO)4Os5C14HS2O15 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os(CO)4 clusters and two Os5C14HS2O15 clusters. In each Os(CO)4 cluster, Os+1.17- is bonded in a rectangular see-saw-like geometry to four C+2.67+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.95 Å. There are four inequivalent C+2.67+ sites. In the first C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In each Os5C14HS2O15 cluster, there are five inequivalent Os+1.17- sites. In the first Os+1.17- site, Os+1.17- is bonded in a 5-coordinate geometry to three C+2.67+, one S2-, and one O2- atom. There are a spread of Os–C bond distances ranging from 1.89–1.93 Å. The Os–S bond length is 2.51 Å. The Os–O bond length is 2.17 Å. In the second Os+1.17- site, Os+1.17- is bonded in a distorted rectangular see-saw-like geometry to three C+2.67+ and one S2- atom. There is one shorter (1.88 Å) and two longer (1.91 Å) Os–C bond length. The Os–S bond length is 2.36 Å. In the third Os+1.17- site, Os+1.17- is bonded in a distorted square pyramidal geometry to three C+2.67+ and two S2- atoms. There is two shorter (1.90 Å) and one longer (1.91 Å) Os–C bond length. There are one shorter (2.44 Å) and one longer (2.46 Å) Os–S bond lengths. In the fourth Os+1.17- site, Os+1.17- is bonded in a 5-coordinate geometry to three C+2.67+, one S2-, and one O2- atom. There are two shorter (1.88 Å) and one longer (2.14 Å) Os–C bond lengths. The Os–S bond length is 2.46 Å. The Os–O bond length is 2.18 Å. In the fifth Os+1.17- site, Os+1.17- is bonded in a 5-coordinate geometry to three C+2.67+ and two S2- atoms. There are a spread of Os–C bond distances ranging from 1.89–2.08 Å. Both Os–S bond lengths are 2.47 Å. There are fourteen inequivalent C+2.67+ sites. In the first C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.17 Å. In the sixth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the ninth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.17 Å. In the eleventh C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.17 Å. In the twelfth C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the thirteenth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os+1.17- and one O2- atom. The C–O bond length is 1.16 Å. In the fourteenth C+2.67+ site, C+2.67+ is bonded in a distorted single-bond geometry to two Os+1.17- and one O2- atom. The C–O bond length is 1.19 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to four Os+1.17- atoms. In the second S2- site, S2- is bonded in a 3-coordinate geometry to three Os+1.17- atoms. There are fifteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the thirteenth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fourteenth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fifteenth O2- site, O2- is bonded in a distorted single-bond geometry to two Os+1.17- and one H1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os2Pt(CO)10 by Materials Project

(Os(CO)4)2Pt(CO)2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of four Os(CO)4 clusters and two Pt(CO)2 clusters. In two of the Os(CO)4 clusters, Os1- is bonded in a distorted see-saw-like geometry to four C+2.40+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.96 Å. There are four inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In two of the Os(CO)4 clusters, Os1- is bonded in a distorted rectangular see-saw-like geometry to four C+2.40+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.96 Å. There are four inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os1- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In each Pt(CO)2 cluster, Pt2- is bonded in a distorted water-like geometry to two C+2.40+ atoms. Both Pt–C bond lengths are 1.91 Å. There are two inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Pt2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Pt2- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Os3C12(IO6)2 by Materials Project

Os(CO)4(OsC4O4I)2 is Cyanogen Chloride-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two Os(CO)4 clusters and four OsC4O4I clusters. In each Os(CO)4 cluster, Os2- is bonded in a square co-planar geometry to four C+2.67+ atoms. There is two shorter (1.95 Å) and two longer (1.96 Å) Os–C bond length. There are two inequivalent C+2.67+ sites. In the first C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.67+ site, C+2.67+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In each OsC4O4I cluster, Os2- is bonded in a 4-coordinate geometry to four C+2.67+ and one I1- atom. There are a spread of Os–C bond distances ranging from 1.91–1.97 Å. The Os–I bond length is 2.82 Å. There are four inequivalent C+2.67+ sites. In the first C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.15 Å. In the third C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.67+ site, C+2.67+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.67+ atom. I1- is bonded in a 1-coordinate geometry to one Os2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2Os5(CO)16 by Materials Project

Os(CO)4Os(CO)3Os3H2(CO)9 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four Os(CO)3 clusters, four Os(CO)4 clusters, and four Os3H2(CO)9 clusters. In each Os(CO)3 cluster, Os2- is bonded in a 3-coordinate geometry to three C+2.50+ atoms. There is two shorter (1.88 Å) and one longer (1.91 Å) Os–C bond length. There are two inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In each Os(CO)4 cluster, Os2- is bonded in a rectangular see-saw-like geometry to four C+2.50+ atoms. There are a spread of Os–C bond distances ranging from 1.91–1.97 Å. There are three inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.15 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In each Os3H2(CO)9 cluster, there are two inequivalent Os2- sites. In the first Os2- site, Os2- is bonded in a distorted rectangular see-saw-like geometry to three C+2.50+ and one H1+ atom. There are a spread of Os–C bond distances ranging from 1.90–1.92 Å. The Os–H bond length is 1.86 Å. In the second Os2- site, Os2- is bonded in a 5-coordinate geometry to three C+2.50+ and two equivalent H1+ atoms. There is two shorter (1.90 Å) and one longer (1.93 Å) Os–C bond length. Both Os–H bond lengths are 1.84 Å. There are five inequivalent C+2.50+ sites. In the first C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the second C+2.50+ site, C+2.50+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the third C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. In the fifth C+2.50+ site, C+2.50+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.17 Å. H1+ is bonded in a water-like geometry to two Os2- atoms. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on H2Os3(CO)10 by Materials Project

H2Os3(CO)10 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Os(CO)4 clusters and two OsH(CO)3 clusters. In each Os(CO)4 cluster, Os2- is bonded in a distorted see-saw-like geometry to four C+2.40+ atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Os–C bond length. There are four inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In each OsH(CO)3 cluster, there are two inequivalent Os2- sites. In the first Os2- site, Os2- is bonded to three C+2.40+ and two H1+ atoms to form distorted edge-sharing OsH2C3 square pyramids. There is two shorter (1.90 Å) and one longer (1.93 Å) Os–C bond length. Both Os–H bond lengths are 1.86 Å. In the second Os2- site, Os2- is bonded to three C+2.40+ and two H1+ atoms to form distorted edge-sharing OsH2C3 square pyramids. There are a spread of Os–C bond distances ranging from 1.90–1.92 Å. There is one shorter (1.85 Å) and one longer (1.86 Å) Os–H bond length. There are six inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a distorted linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the third C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Os2- and one O2- atom. The C–O bond length is 1.16 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in an L-shaped geometry to two Os2- atoms. In the second H1+ site, H1+ is bonded in an L-shaped geometry to two Os2- atoms. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2023

High-efficiency purification of CH 4 and H 2 energy sources enabled by a phosphotungstic acid-supported Os single-atom catalyst

Methane (CH 4 ) and hydrogen (H 2 ) show promise as low-carbon energy sources, but their impurities, including H 2 and CO, pose challenges for storage and use. To address these challenges, a robust purification protocol for CH 4 and/or H 2 , combined with the catalytic conversion of impurities into CO 2 and H 2 O, is a compelling solution. Here, in this work, we investigated 11 phosphotungstic acid (PTA)-supported single-atom catalysts (SACs) by density functional theory (DFT) computations. Os 1 /PTA SACs exhibited superior catalytic activity, and the ease of oxidation follows the CO > H 2 > CH 4 order. It facilitated efficient purification of CH 4 in solvents such as water, MeOH, and various others. For H 2 purification, Os 1 /PTA SACs demonstrated excellent performance in gas, water, and MeOH. Notably, in water and MeOH, it selectively removed CO without consuming H 2 with low free energy barriers. The strong Os-PTA interactions and charge transfer mechanism contributed to its exceptional catalytic activity. Our findings shed light on SAC behavior and their potential for efficient CH 4 and H 2 purification. By addressing impurity challenges and improving clean energy utilization, these findings contribute to the development of sustainable energy technologies.

30 DIRECT ENERGY CONVERSION↗
DOE OSTI2020

Materials Data on Y3(B3Os4)2 by Materials Project

Y3Os8B6 crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. there are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to twelve Os+1.88- atoms to form YOs12 cuboctahedra that share edges with six equivalent YOs12 cuboctahedra and faces with six equivalent BOs6 pentagonal pyramids. There are four shorter (3.10 Å) and eight longer (3.19 Å) Y–Os bond lengths. In the second Y3+ site, Y3+ is bonded in a 10-coordinate geometry to ten Os+1.88- atoms. There are a spread of Y–Os bond distances ranging from 3.03–3.28 Å. There are three inequivalent Os+1.88- sites. In the first Os+1.88- site, Os+1.88- is bonded in a 4-coordinate geometry to four Y3+ and four B1+ atoms. There are two shorter (2.21 Å) and two longer (2.24 Å) Os–B bond lengths. In the second Os+1.88- site, Os+1.88- is bonded in a distorted square co-planar geometry to four Y3+ and four B1+ atoms. There are two shorter (2.21 Å) and two longer (2.26 Å) Os–B bond lengths. In the third Os+1.88- site, Os+1.88- is bonded in a 4-coordinate geometry to four equivalent Y3+ and four equivalent B1+ atoms. All Os–B bond lengths are 2.14 Å. There are two inequivalent B1+ sites. In the first B1+ site, B1+ is bonded in a distorted pentagonal planar geometry to five Os+1.88- atoms. In the second B1+ site, B1+ is bonded to six Os+1.88- atoms to form distorted BOs6 pentagonal pyramids that share edges with three equivalent BOs6 pentagonal pyramids and faces with three equivalent YOs12 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on OsN by Materials Project

OsN crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Os3+ is bonded in a square co-planar geometry to four equivalent N3- atoms. All Os–N bond lengths are 2.05 Å. N3- is bonded in a 4-coordinate geometry to four equivalent Os3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on OsAu3 by Materials Project

OsAu3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Os2- is bonded to twelve Au+0.67+ atoms to form a mixture of edge, corner, and face-sharing OsAu12 cuboctahedra. There are eight shorter (2.86 Å) and four longer (2.96 Å) Os–Au bond lengths. There are two inequivalent Au+0.67+ sites. In the first Au+0.67+ site, Au+0.67+ is bonded in a 4-coordinate geometry to four equivalent Os2- atoms. In the second Au+0.67+ site, Au+0.67+ is bonded in a distorted square co-planar geometry to four equivalent Os2- atoms.

36 MATERIALS SCIENCE↗
NASA NTRSDate not supplied

Metal-silicate Partitioning of Re, Ru, Pt, Os, Ti, Nb, and Ta in Reduced Differentiated Planetary Bodies

Siderophile (iron-loving) elements are strongly fractionated during differentiation of planetary bodies into core and mantle [1]. Because the fractionation is controlled by the pressure, temperature, redox conditions, and composition, this group of elements can provide important constraints on the conditions of accretion and core formation in early solar system bodies (planetesimals) and planets (Earth, Mercury, Venus)[2]. At the reducing conditions thought to prevail in the early solar system, Si is known to alloy with FeNi metallic liquids (e.g., [3]) affecting the activity coefficients of siderophile elements in FeNi liquids and thus ultimately their detailed partitioning between metal and silicate melt. The effect of Si can be significant for some siderophile elements, as demonstrated previously by (e.g., [4]: Ni, Co; [5,6]: Ge, As, Sb, Pd, Pt, Au). The effect of Si has not yet been determined for several key groups of siderophile elements including the highly siderophile Re, Ru and Os, and the weakly siderophile Ta, Nb, and Ti. Here, we report new experiments designed to quantify the effect of Si on the partitioning of Re, Pt, Os, Ru, Ti, Ta and Nb between metal and silicate melts. The results will be used to evaluate metal/silicate equilibrium for Nb, Ta, Ti and Nb/Ta ratios in planetary mantles, mantle concentrations of Ru, Re, Pt, Os during accretion, the evolution of Re/Os, Pt/Os ratios in magma oceans, and the role of late veneer in establishing Re and Ru abundances in the terrestrial mantle.

core formation↗
DOE OSTI2020

Materials Data on Sr2CoOsO6 by Materials Project

Sr2CoOsO6 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. Sr2+ is bonded to twelve O2- atoms to form distorted SrO12 cuboctahedra that share corners with twelve equivalent SrO12 cuboctahedra, faces with six equivalent SrO12 cuboctahedra, faces with four equivalent OsO6 octahedra, and faces with four equivalent CoO6 octahedra. There are a spread of Sr–O bond distances ranging from 2.66–3.02 Å. Os6+ is bonded to six O2- atoms to form OsO6 octahedra that share corners with six equivalent CoO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–15°. All Os–O bond lengths are 1.94 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent OsO6 octahedra and faces with eight equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–15°. There are four shorter (2.03 Å) and two longer (2.15 Å) Co–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Sr2+, one Os6+, and one Co2+ atom to form a mixture of distorted edge and corner-sharing OSr4CoOs octahedra. The corner-sharing octahedra tilt angles range from 0–4°. In the second O2- site, O2- is bonded in a 2-coordinate geometry to four equivalent Sr2+, one Os6+, and one Co2+ atom.

36 MATERIALS SCIENCE↗