Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Na(NO2)2”

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.

8 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Na(NO2)2 by Materials Project

NaO4N2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two nitrogen molecules and one NaO4 sheet oriented in the (0, 0, 1) direction. In the NaO4 sheet, Na is bonded to eight equivalent O atoms to form edge-sharing NaO8 hexagonal bipyramids. There are four shorter (2.45 Å) and four longer (2.78 Å) Na–O bond lengths. O is bonded in a distorted trigonal planar geometry to two equivalent Na and one O atom. The O–O bond length is 1.29 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3Co(NO2)6 by Materials Project

Na3Co(NO2)6 crystallizes in the trigonal R-3 space group. The structure is three-dimensional and consists of three cobalt molecules and one Na(NO2)2 framework. In the Na(NO2)2 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to twelve O2- atoms to form a mixture of corner and face-sharing NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 48°. There are six shorter (2.71 Å) and six longer (2.92 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded to six O2- atoms to form a mixture of corner and face-sharing NaO6 octahedra. There are three shorter (2.35 Å) and three longer (2.37 Å) Na–O bond lengths. N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.25 Å) N–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na2Pd(NO2)4 by Materials Project

(Na(NO2)2)2Pd crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional and consists of four palladium molecules and one Na(NO2)2 framework. In the Na(NO2)2 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.42–2.79 Å. In the second Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.44–3.01 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a distorted bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the second N3+ site, N3+ is bonded in a distorted bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Na1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Na1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3Rh(NO2)6 by Materials Project

(Na(NO2)2)3Rh crystallizes in the trigonal R-3m space group. The structure is three-dimensional and consists of three rhodium molecules and one Na(NO2)2 framework. In the Na(NO2)2 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form a mixture of corner and face-sharing NaO6 octahedra. There are three shorter (2.36 Å) and three longer (2.41 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded to twelve O2- atoms to form a mixture of corner and face-sharing NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 45°. There are six shorter (2.66 Å) and six longer (2.95 Å) Na–O bond lengths. N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.25 Å) N–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3Ir(NO2)6 by Materials Project

Ir(Na(NO2)2)3 crystallizes in the trigonal R-3m space group. The structure is three-dimensional and consists of three iridium molecules and one Na(NO2)2 framework. In the Na(NO2)2 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form a mixture of corner and face-sharing NaO6 octahedra. There are three shorter (2.36 Å) and three longer (2.40 Å) Na–O bond lengths. In the second Na1+ site, Na1+ is bonded to twelve O2- atoms to form a mixture of corner and face-sharing NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 45°. There are six shorter (2.66 Å) and six longer (2.95 Å) Na–O bond lengths. N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaH8Rh(N2O3)4 by Materials Project

Na(NO2)6Rh(NH4)2 is Heusler structured and crystallizes in the cubic Fm-3 space group. The structure is zero-dimensional and consists of eight ammonium molecules, four rhodium molecules, and four Na(NO2)6 clusters. In each Na(NO2)6 cluster, Na1+ is bonded in a cuboctahedral geometry to twelve equivalent O2- atoms. All Na–O bond lengths are 2.92 Å. N+1.50+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.25 Å. O2- is bonded in a single-bond geometry to one Na1+ and one N+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaAg(NO2)2 by Materials Project

NaAg(NO2)2 crystallizes in the orthorhombic F222 space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Na–O bond lengths are 2.45 Å. In the second Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are four shorter (2.54 Å) and four longer (2.76 Å) Na–O bond lengths. There are two inequivalent Ag1+ sites. In the first Ag1+ site, Ag1+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are four shorter (2.45 Å) and four longer (3.06 Å) Ag–O bond lengths. In the second Ag1+ site, Ag1+ is bonded in a distorted linear geometry to two equivalent N3+ and four equivalent O2- atoms. Both Ag–N bond lengths are 2.17 Å. All Ag–O bond lengths are 2.99 Å. There are two inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.27 Å. In the second N3+ site, N3+ is bonded in a trigonal planar geometry to one Ag1+ and two equivalent O2- atoms. Both N–O bond lengths are 1.26 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+, one Ag1+, and one N3+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two Ag1+, and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaAg(NO2)2 by Materials Project

NaAg(NO2)2 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional. Na1+ is bonded to six O2- atoms to form distorted corner-sharing NaO6 pentagonal pyramids. There are a spread of Na–O bond distances ranging from 2.48–2.60 Å. Ag1+ is bonded in a 7-coordinate geometry to one N3+ and six O2- atoms. The Ag–N bond length is 2.19 Å. There are a spread of Ag–O bond distances ranging from 2.42–3.02 Å. There are two inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a bent 120 degrees geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.27 Å. In the second N3+ site, N3+ is bonded in a trigonal planar geometry to one Ag1+ and two equivalent O2- atoms. Both N–O bond lengths are 1.26 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Na1+, one Ag1+, and one N3+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one Na1+, two equivalent Ag1+, and one N3+ atom.

36 MATERIALS SCIENCE↗