Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “NO4”

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.

117 records · Page 7
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on DyN3O14 by Materials Project

Dy(NO4)3O2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two oxygen molecules and two Dy(NO4)3 clusters. In each Dy(NO4)3 cluster, Dy is bonded in a 7-coordinate geometry to eight O atoms. There are a spread of Dy–O bond distances ranging from 2.19–2.98 Å. There are three inequivalent N sites. In the first N site, N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.22–1.31 Å. In the second N site, N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.23 Å) and two longer (1.29 Å) N–O bond length. In the third N site, N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.22–1.31 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one N atom. In the second O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.24 Å. In the third O site, O is bonded in an L-shaped geometry to one Dy and one N atom. In the fourth O site, O is bonded in an L-shaped geometry to one Dy and one N atom. In the fifth O site, O is bonded in a distorted L-shaped geometry to one Dy and one N atom. In the sixth O site, O is bonded in a single-bond geometry to one Dy atom. In the seventh O site, O is bonded in a single-bond geometry to one N atom. In the eighth O site, O is bonded in a distorted water-like geometry to one Dy and one N atom. In the ninth O site, O is bonded in a distorted L-shaped geometry to one Dy and one N atom. In the tenth O site, O is bonded in a distorted water-like geometry to one Dy and one N atom. In the eleventh O site, O is bonded in a single-bond geometry to one N atom. In the twelfth O site, O is bonded in an L-shaped geometry to one Dy and one O atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NiP2N2(O6F)2 by Materials Project

Ni(NO4)2(PO2F)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 14939-29-8 molecules and two Ni(NO4)2 clusters. In each Ni(NO4)2 cluster, Ni is bonded in a distorted octahedral geometry to six O atoms. There are a spread of Ni–O bond distances ranging from 1.85–2.59 Å. N is bonded in a bent 120 degrees geometry to two O atoms. Both N–O bond lengths are 1.22 Å. There are four inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one N atom. In the second O site, O is bonded in a 1-coordinate geometry to one Ni and one O atom. The O–O bond length is 1.33 Å. In the third O site, O is bonded in a 1-coordinate geometry to one Ni and one O atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one Ni and one N atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TlP3(NO6)2 by Materials Project

TlP2(NO4)2PO4 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional and consists of four phosphoric acid molecules and one TlP2(NO4)2 framework. In the TlP2(NO4)2 framework, Tl1+ is bonded to eight O2- atoms to form distorted TlO8 hexagonal bipyramids that share corners with four equivalent PO4 tetrahedra and edges with two equivalent PO4 tetrahedra. There are four shorter (2.99 Å) and four longer (3.02 Å) Tl–O bond lengths. P5+ is bonded to four O2- atoms to form distorted PO4 tetrahedra that share corners with two equivalent TlO8 hexagonal bipyramids and an edgeedge with one TlO8 hexagonal bipyramid. There is two shorter (1.47 Å) and two longer (1.82 Å) P–O bond length. N4+ is bonded in a water-like geometry to two equivalent O2- atoms. Both N–O bond lengths are 1.31 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Tl1+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted L-shaped geometry to one Tl1+, one P5+, and one N4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmH12(NO5)3 by Materials Project

SmH6(NO4)3(H2O)3 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of six water molecules and one SmH6(NO4)3 cluster. In the SmH6(NO4)3 cluster, Sm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sm–O bond distances ranging from 2.13–2.63 Å. There are three inequivalent N5+ sites. In the first N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.26 Å) and two longer (1.27 Å) N–O bond length. In the second N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.24–1.31 Å. In the third N5+ site, N5+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.21–1.35 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.05 Å) and one longer (1.50 Å) H–O bond length. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the sixth H1+ site, H1+ is bonded in a distorted single-bond geometry to one O2- atom. The H–O bond length is 1.01 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Sm3+ and two H1+ atoms. In the second O2- site, O2- is bonded in a water-like geometry to one Sm3+ and two H1+ atoms. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Sm3+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted L-shaped geometry to one Sm3+ and one N5+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one Sm3+ and one N5+ atom. In the sixth O2- site, O2- is bonded in a bent 120 degrees geometry to one N5+ and one H1+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one Sm3+ and one N5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one Sm3+ and one N5+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the tenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sm3+ and one N5+ atom. In the eleventh O2- site, O2- is bonded in a water-like geometry to one N5+ and one H1+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one N5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on INO4 by Materials Project

NO4I crystallizes in the tetragonal I4_1/a space group. The structure is two-dimensional and consists of four NO4I sheets oriented in the (0, 0, 1) direction. N3+ is bonded to four equivalent O2- atoms to form NO4 tetrahedra that share corners with four equivalent IO4 trigonal pyramids. All N–O bond lengths are 1.39 Å. O2- is bonded in a distorted bent 120 degrees geometry to one N3+ and one I5+ atom. The O–I bond length is 2.22 Å. I5+ is bonded to four equivalent O2- atoms to form distorted IO4 trigonal pyramids that share corners with four equivalent NO4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AsNO4 by Materials Project

AsNO4 crystallizes in the tetragonal I-42d space group. The structure is one-dimensional and consists of four AsNO4 ribbons oriented in the (0, 0, 1) direction. As5+ is bonded to four equivalent O2- atoms to form distorted AsO4 tetrahedra that share edges with two equivalent NO4 tetrahedra. All As–O bond lengths are 1.75 Å. N3+ is bonded to four equivalent O2- atoms to form distorted NO4 tetrahedra that share edges with two equivalent AsO4 tetrahedra. All N–O bond lengths are 1.78 Å. O2- is bonded in a distorted L-shaped geometry to one As5+ and one N3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoN7O8 by Materials Project

CoN2N2(NO2)2NO4 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is one-dimensional and consists of four diamino cobalt molecules; four nitrogen molecules; eight nitrous acid molecules; and four NO4 ribbons oriented in the (1, 0, 0) direction. In each NO4 ribbon, N+1.86+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of N–O bond distances ranging from 1.23–1.29 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of O–O bond distances ranging from 2.10–3.04 Å. In the second O2- site, O2- is bonded in a single-bond geometry to one N+1.86+ and one O2- atom. In the third O2- site, O2- is bonded in a single-bond geometry to one N+1.86+ and one O2- atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one N+1.86+ and one O2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ReNO4 by Materials Project

ReNO4 crystallizes in the tetragonal I4_1/a space group. The structure is two-dimensional and consists of four ReNO4 sheets oriented in the (0, 0, 1) direction. Re3+ is bonded to four equivalent O2- atoms to form ReO4 tetrahedra that share corners with four equivalent NO4 tetrahedra. All Re–O bond lengths are 1.76 Å. N5+ is bonded to four equivalent O2- atoms to form distorted NO4 tetrahedra that share corners with four equivalent ReO4 tetrahedra. All N–O bond lengths are 2.15 Å. O2- is bonded in a distorted single-bond geometry to one Re3+ and one N5+ atom.

36 MATERIALS SCIENCE↗
NASA NTRS1991

Cyclic variations in nitrogen uptake rate of soybean plants: effects of pH and mixed nitrogen sources

To determine if the daily pattern of NO3- and NH4+ uptake is affected by acidity or NO3- : NH4+ ratio of the nutrient solution, non-nodulated soybean plants (Glycine max) were exposed for 21 days to replenished, complete nutrient solutions at pH 6.0, 5.5, 5.0, and 4.5 which contained either 1.0 mM NH4+, 1.0 mM NO3- [correction of NO3+], 0.67 mM NH4+ plus 0.33 mM NO3- (2:1 NH4+ : NO3-) [correction of (2:1 NH3+ : NO4-)], or 0.33 mM NH4+ plus 0.67 mM NO3- (1:2 NH4+ : NO3-). Net uptake rates of NH4+ and NO3- were measured daily by ion chromatography as depletion from the replenished solutions. When NH4+ and NO3- were supplied together, cumulative uptake of total nitrogen was not affected by pH or solution NH4+ : NO3- ratio. The cumulative proportion of nitrogen absorbed as NH4+ decreased with increasing acidity; however, the proportional uptake of NH4+ and NO3- was not constant, but varied day-to-day. This day-to-day variation in relative proportions of NH4+ and NO3- absorbed when NH4+ : NO3- ratio and pH of solution were constant indicates that the regulatory mechanism is not directly competitive. Regardless of the effect of pH on cumulative uptake of NH4+, the specific nitrogen uptake rates from mixed and from individual NH4+ and NO3- sources oscillated between maxima and minima at each pH with average periodicities similar to the expected interval of leaf emergence.

Non-NASA Center↗