Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “C-H-K-O”

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.

Materials Data on KH3(CO2)2 by Materials Project

KH3(CO2)2 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.83–3.14 Å. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a trigonal planar geometry to one H1+ and two O2- atoms. The C–H bond length is 1.11 Å. There is one shorter (1.24 Å) and one longer (1.30 Å) C–O bond length. In the second C2+ site, C2+ is bonded in a trigonal planar geometry to one H1+ and two O2- atoms. The C–H bond length is 1.11 Å. There is one shorter (1.25 Å) and one longer (1.29 Å) C–O bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.14 Å) and one longer (1.30 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C2+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one C2+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one C2+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one C2+ and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on K4H6C2O9 by Materials Project

K4C2H6O9 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are three inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to two equivalent H1+ and six O2- atoms. Both K–H bond lengths are 2.76 Å. There are a spread of K–O bond distances ranging from 2.78–2.83 Å. In the second K1+ site, K1+ is bonded in a 10-coordinate geometry to two equivalent H1+ and eight O2- atoms. Both K–H bond lengths are 2.85 Å. There are a spread of K–O bond distances ranging from 2.78–3.14 Å. In the third K1+ site, K1+ is bonded in a 10-coordinate geometry to two H1+ and eight O2- atoms. There are one shorter (2.79 Å) and one longer (2.97 Å) K–H bond lengths. There are a spread of K–O bond distances ranging from 2.82–3.22 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.31 Å) C–O bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to one K1+ and one O2- atom. The H–O bond length is 1.00 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one K1+ and one O2- atom. The H–O bond length is 1.00 Å. In the third H1+ site, H1+ is bonded in a distorted single-bond geometry to two K1+ and one O2- atom. The H–O bond length is 1.01 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five K1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to four K1+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one C4+ atom. In the fourth O2- site, O2- is bonded in a water-like geometry to two equivalent K1+ and two equivalent H1+ atoms. In the fifth O2- site, O2- is bonded in a water-like geometry to three K1+ and two H1+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on KHCO3 by Materials Project

KHCO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.72–3.07 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.26–1.36 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.04 Å) and one longer (1.52 Å) H–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C4+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent K1+, one C4+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted water-like geometry to two equivalent K1+, one C4+, and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KH3C2O3 by Materials Project

KC2H3O3 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one KC2H3O3 sheet oriented in the (0, 0, 1) direction. K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.73–3.09 Å. There are two inequivalent C1+ sites. In the first C1+ site, C1+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.25–1.41 Å. In the second C1+ site, C1+ is bonded in a tetrahedral geometry to three H1+ and one O2- atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C1+ atom. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent K1+ and two C1+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one C1+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KHCO2 by Materials Project

KHCO2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. K1+ is bonded to eight equivalent O2- atoms to form a mixture of face, edge, and corner-sharing KO8 hexagonal bipyramids. There are four shorter (2.85 Å) and four longer (3.03 Å) K–O bond lengths. C2+ is bonded in a trigonal planar geometry to one H1+ and two equivalent O2- atoms. The C–H bond length is 1.11 Å. Both C–O bond lengths are 1.27 Å. H1+ is bonded in a single-bond geometry to one C2+ atom. O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KHCO3 by Materials Project

KHCO3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.77–3.05 Å. C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.59 Å) H–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to four equivalent K1+ and one C4+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to two equivalent K1+ and one H1+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+, one C4+, and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on KH3CO6 by Materials Project

KCH3O6 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. K is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of K–O bond distances ranging from 2.81–3.22 Å. C is bonded in a trigonal planar geometry to three O atoms. There are a spread of C–O bond distances ranging from 1.25–1.40 Å. There are three inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.01 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. In the third H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 1.00 Å. There are six inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to two equivalent K and one H atom. In the second O site, O is bonded in a distorted single-bond geometry to one K and one C atom. In the third O site, O is bonded in a distorted single-bond geometry to two equivalent K and one C atom. In the fourth O site, O is bonded in a single-bond geometry to one K and one H atom. In the fifth O site, O is bonded in a distorted single-bond geometry to one K and one C atom. In the sixth O site, O is bonded in a single-bond geometry to two equivalent K and one H atom.

36 MATERIALS SCIENCE↗

Materials Data on KHCO3 by Materials Project

KHCO3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.72–3.02 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.37 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.55 Å) H–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to two equivalent K1+, one C4+, and one H1+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent K1+, one C4+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on K2H2C2O5 by Materials Project

K2C2O4H2O crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.75–3.05 Å. C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a water-like geometry to two equivalent K1+ and two equivalent H1+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one C3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to four equivalent K1+ and one C3+ atom.

36 MATERIALS SCIENCE↗