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All sourcesNASA NTRSDOE OSTI
NASA NTRS2012

Rates of Dinitrogen Fixation and the Abundance of Diazotrophs in North American Coastal Waters Between Cape Hatteras and Georges Bank

We coupled dinitrogen (N2) fixation rate estimates with molecular biological methods to determine the activity and abundance of diazotrophs in coastal waters along the temperate North American Mid-Atlantic continental shelf during multiple seasons and cruises. Volumetric rates of N2 fixation were as high as 49.8 nmol N L(sup -1) d(sup -1) and areal rates as high as 837.9 micromol N m(sup -2) d(sup -1) in our study area. Our results suggest that N2 fixation occurs at high rates in coastal shelf waters that were previously thought to be unimportant sites of N2 fixation and so were excluded from calculations of pelagic marine N2 fixation. Unicellular N2-fixing group A cyanobacteria were the most abundant diazotrophs in the Atlantic coastal waters and their abundance was comparable to, or higher than, that measured in oceanic regimes where they were discovered. High rates of N2 fixation and the high abundance of diazotrophs along the North American Mid-Atlantic continental shelf highlight the need to revise marine N budgets to include coastal N2 fixation. Integrating areal rates of N2 fixation over the continental shelf area between Cape Hatteras and Nova Scotia, the estimated N2 fixation in this temperate shelf system is about 0.02 Tmol N yr(sup -1), the amount previously calculated for the entire North Atlantic continental shelf. Additional studies should provide spatially, temporally, and seasonally resolved rate estimates from coastal systems to better constrain N inputs via N2 fixation from the neritic zone.

Middle Atlantic Bight↗
DOE OSTI2020

Materials Data on PtI5(NO)2 by Materials Project

PtI5(NO)2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is two-dimensional and consists of two PtI5(NO)2 sheets oriented in the (0, 1, 0) direction. there are two inequivalent Pt5+ sites. In the first Pt5+ site, Pt5+ is bonded to six I1- atoms to form corner-sharing PtI6 octahedra. The corner-sharing octahedral tilt angles are 21°. There are a spread of Pt–I bond distances ranging from 2.68–2.82 Å. In the second Pt5+ site, Pt5+ is bonded to six I1- atoms to form corner-sharing PtI6 octahedra. The corner-sharing octahedral tilt angles are 21°. There are a spread of Pt–I bond distances ranging from 2.70–2.79 Å. There are two inequivalent N2+ sites. In the first N2+ site, N2+ is bonded in a distorted single-bond geometry to one O2- and two I1- atoms. The N–O bond length is 1.15 Å. There are one shorter (2.85 Å) and one longer (2.91 Å) N–I bond lengths. In the second N2+ site, N2+ is bonded in a single-bond geometry to one O2- and one I1- atom. The N–O bond length is 1.15 Å. The N–I bond length is 2.91 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N2+ and one I1- atom. The O–I bond length is 3.41 Å. In the second O2- site, O2- is bonded in a single-bond geometry to one N2+ and one I1- atom. The O–I bond length is 3.64 Å. There are nine inequivalent I1- sites. In the first I1- site, I1- is bonded in a 3-coordinate geometry to one Pt5+ and two equivalent O2- atoms. In the second I1- site, I1- is bonded in a 3-coordinate geometry to one Pt5+ and two equivalent N2+ atoms. In the third I1- site, I1- is bonded in a 3-coordinate geometry to one Pt5+ and two equivalent N2+ atoms. In the fourth I1- site, I1- is bonded in a single-bond geometry to one Pt5+ atom. In the fifth I1- site, I1- is bonded in a single-bond geometry to one Pt5+ atom. In the sixth I1- site, I1- is bonded in a 1-coordinate geometry to one Pt5+ and two equivalent O2- atoms. In the seventh I1- site, I1- is bonded in a single-bond geometry to one Pt5+ atom. In the eighth I1- site, I1- is bonded in a single-bond geometry to one Pt5+ atom. In the ninth I1- site, I1- is bonded in a distorted T-shaped geometry to two Pt5+ and one N2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AsC4N2F17 by Materials Project

C4AsN2F17 crystallizes in the monoclinic P2_1/m space group. The structure is zero-dimensional and consists of two C4AsN2F17 clusters. there are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded to one N2- and three F1- atoms to form corner-sharing CNF3 tetrahedra. The C–N bond length is 1.54 Å. There is one shorter (1.32 Å) and two longer (1.34 Å) C–F bond length. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to two N2- and one F1- atom. There is one shorter (1.32 Å) and one longer (1.35 Å) C–N bond length. The C–F bond length is 1.32 Å. In the third C4+ site, C4+ is bonded in a tetrahedral geometry to one N2- and three F1- atoms. The C–N bond length is 1.45 Å. There is one shorter (1.33 Å) and two longer (1.36 Å) C–F bond length. In the fourth C4+ site, C4+ is bonded to one N2- and three F1- atoms to form corner-sharing CNF3 tetrahedra. The C–N bond length is 1.53 Å. All C–F bond lengths are 1.33 Å. As5+ is bonded in an octahedral geometry to six F1- atoms. There are a spread of As–F bond distances ranging from 1.76–1.81 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a trigonal planar geometry to three C4+ atoms. In the second N2- site, N2- is bonded in a distorted bent 120 degrees geometry to two C4+ and one F1- atom. The N–F bond length is 3.08 Å. There are twelve inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one C4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one C4+ and one F1- atom. The F–F bond length is 2.78 Å. In the third F1- site, F1- is bonded in a single-bond geometry to one C4+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one C4+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one C4+ atom. In the sixth F1- site, F1- is bonded in a single-bond geometry to one As5+ atom. In the seventh F1- site, F1- is bonded in a 4-coordinate geometry to one N2- and three F1- atoms. There are one shorter (2.18 Å) and one longer (2.94 Å) F–F bond lengths. In the eighth F1- site, F1- is bonded in a single-bond geometry to one As5+ atom. In the ninth F1- site, F1- is bonded in a single-bond geometry to one As5+ atom. In the tenth F1- site, F1- is bonded in a single-bond geometry to one As5+ and one F1- atom. In the eleventh F1- site, F1- is bonded in a single-bond geometry to one C4+ and one F1- atom. In the twelfth F1- site, F1- is bonded in a single-bond geometry to one C4+ atom.

36 MATERIALS SCIENCE↗
NASA NTRSDate not supplied

In-Situ Reaction Monitoring for Lunar Applications Utilizing a Single Quadrupole Residual Gas Analyzer

With a revived focus to create a permeant presence on the moon and in preparation for future Mars exploration, it is imperative that all re-sources are utilized to their fullest potential. In-Situ Resource Utilization (ISRU) will be critical for future mission success as it would enable independent operation of missions while minimally relying on the complex supply chain created between the Earth, moon and Mars. One of the most critical resources that have been identified for ISRU is the creation of liquid oxygen (O2) for not only breathable air, but also for rocket fuel. On the moon and potentially Mars, one of the most O2 rich resources is in the presence of regolith. Although there are numerous minerals within regolith and various processes to extract O2, this is not the scope of this paper. Since the O2 extraction method can vary, a critical standardized analytical method is needed to verify O2 (or oxygenated precursor compounds) for extraction efficiency and purity. Our group utilizes a modified consumer off-the-shelf (COTS), Residual Gas Analyzer (RGA) Single Quadrupole Mass Spectrometer (QMS). Due to the current field mission requirements, the gas analysis module will need to rely only on mass-to-charge ratios (m/z) and peak intensities to differentiate and quantitate targeted gas-phase reactants or products, i.e. carbon monoxide (CO), carbon dioxide (CO2), methane (CH4) and hydrogen (H2). However, due to solar wind implanted volatiles and various other compounds present in lunar regolith, such as nitrogen (N2), helium (He), and deuterium (D2), deconvolution and quantification of isobaric compounds becomes quite difficult. Specifically, the presence of N2 makes quantification of CO, an oxygenated precursor, difficult due to both compounds having a peak at m/z 28. Approaches to differentiate isobaric components: Initially, the solution to overcome isobaric overlap was to use isotopic ratios, particularly be-tween carbon-13 and nitrogen-15. Although limited literature discuss isotopic composition and attempt to quantify the ratios, variation is particularly high and limited to a few lunar regolith samples. The following were identified as potential approaches to quantify isobaric species, N2 and CO, using our RGA. Threshold Ionization. CO and N2 both have peaks at m/z 28, but only N2 is capable of producing a peak at m/z 7. While a N2 peak at m/z 7 is generally rare, instrument parameters can be optimized in order to maximize the peak intensity. Typically a standard ionization energy of 70 eV is used to monitor a batch process and would produce reliable results for a majority of the reactants or products that we are interested in quantifying. However, to analyze the rare molecular fragment of N2 (N2+ at m/z 7), a different ionization energy may be beneficial. Threshold Ionization Mass Spectrometry (TIMS) will be explored to optimize the N2+ peak at m/z 7 by varying parameters such as ionization energy and pressure. Therefore, a quantitative value at m/z 7 will be used to determine the product gas concentration of N2, which will be subtracted from the total concentration determined at m/z 28 enabling us to approximate the amount of CO. Secondary Detector (infrared gas detector, IR). Another approach to quantitate and differentiate be-tween isobaric components is to leverage alternative modes of detection. Unlike mass spectrometry, which generally uses a separation step prior to analysis (i.e. gas chromatography), IR produces energy that is specifically absorbed depending on the bond and configuration of the molecule. This technique could be leveraged since it is generally only active on non-symmetric molecules, i.e. CO. Utilizing concentrations of CO determined from another detector could help correct concentrations of CO obtained from the QMS. However, the inclusion of another detector adds additional mission requirements, such as power, software changes and avionics updates that add additional cost and schedule requirements.

mass spectrometry↗
DOE OSTI2020

Materials Data on CSeN by Materials Project

SeCN crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. there are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted single-bond geometry to one N2- and one Se2- atom. The C–N bond length is 1.17 Å. The C–Se bond length is 1.85 Å. In the second C4+ site, C4+ is bonded in a single-bond geometry to one N2- and one Se2- atom. The C–N bond length is 1.17 Å. The C–Se bond length is 1.86 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a distorted single-bond geometry to one C4+ and two Se2- atoms. There are one shorter (2.97 Å) and one longer (3.18 Å) N–Se bond lengths. In the second N2- site, N2- is bonded in a single-bond geometry to one C4+ and two Se2- atoms. There are one shorter (2.88 Å) and one longer (3.23 Å) N–Se bond lengths. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to one C4+, two N2-, and one Se2- atom. The Se–Se bond length is 2.41 Å. In the second Se2- site, Se2- is bonded in a distorted rectangular see-saw-like geometry to one C4+, two N2-, and one Se2- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaH15N4(OF3)2 by Materials Project

GaH7(N2F3)2(H2)2(H2O)2 crystallizes in the monoclinic C2/c space group. The structure is one-dimensional and consists of eight hydrogen molecules; eight water molecules; and two GaH7(N2F3)2 ribbons oriented in the (1, 1, 0) direction. In each GaH7(N2F3)2 ribbon, Ga3+ is bonded in a 4-coordinate geometry to four F1- atoms. There are two shorter (2.47 Å) and two longer (2.70 Å) Ga–F bond lengths. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a distorted single-bond geometry to one N2- atom. The N–N bond length is 1.17 Å. In the second N2- site, N2- is bonded in a distorted trigonal planar geometry to one N2- and two H1+ atoms. There is one shorter (1.34 Å) and one longer (1.41 Å) N–H bond length. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one F1- atom. The H–F bond length is 0.96 Å. In the second H1+ site, H1+ is bonded in a linear geometry to one N2- and one F1- atom. The H–F bond length is 1.08 Å. In the third H1+ site, H1+ is bonded in a distorted bent 150 degrees geometry to two F1- atoms. There is one shorter (1.00 Å) and one longer (1.43 Å) H–F bond length. In the fourth H1+ site, H1+ is bonded in a linear geometry to two equivalent N2- atoms. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ga3+ and one H1+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Ga3+ and one H1+ atom. In the third F1- site, F1- is bonded in an L-shaped geometry to two H1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KH3CSN2O by Materials Project

KCN2H3SO crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. K1+ is bonded in a 10-coordinate geometry to one N2-, four H1+, two equivalent S2-, and three equivalent O2- atoms. The K–N bond length is 2.84 Å. There are a spread of K–H bond distances ranging from 2.63–2.93 Å. There are one shorter (3.50 Å) and one longer (3.72 Å) K–S bond lengths. There are one shorter (3.02 Å) and two longer (3.20 Å) K–O bond lengths. C4+ is bonded in a linear geometry to one N2- and one O2- atom. The C–N bond length is 1.19 Å. The C–O bond length is 1.21 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a bent 150 degrees geometry to one C4+ and one H1+ atom. The N–H bond length is 1.04 Å. In the second N2- site, N2- is bonded in a distorted bent 150 degrees geometry to one K1+ and one S2- atom. The N–S bond length is 1.58 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N2- atom. In the second H1+ site, H1+ is bonded in a distorted single-bond geometry to two equivalent K1+ and one H1+ atom. The H–H bond length is 0.76 Å. In the third H1+ site, H1+ is bonded in a distorted single-bond geometry to two equivalent K1+ and one H1+ atom. S2- is bonded in a single-bond geometry to two equivalent K1+ and one N2- atom. O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2022

Interaction of molecular nitrogen with vanadium oxide in the absence and presence of water vapor at room temperature: Near-ambient pressure XPS

Interactions of N2 at oxide surfaces are important for understanding electrocatalytic nitrogen reduction reaction (NRR) mechanisms. Interactions of N2 at the polycrystalline vanadium oxide/vapor interface were monitored at room temperature and total pressures up to 10−1 Torr using Near-Ambient Pressure X-ray Photoelectron Spectroscopy (NAP-XPS). The oxide film was predominantly V(IV), with V(III) and V(V) components. XPS spectra were acquired in environments of both pure N2 and equal pressures of N2 and H2O vapor. In pure N2, broad, partially resolved N1s features were observed at binding energies of 401.0 and 398.7 eV, with a relative intensity of ∼3:1, respectively. These features remained upon subsequent pumpdown to 10−9 Torr. The observed maximum N surface coverage was ∼1.5 × 1013 cm−2—a fraction of a monolayer. In the presence of equal pressures of H2O, the adsorbed N intensity at 10−1 Torr is ∼25% of that observed in the absence of H2O. The formation of molecularly adsorbed H2O was also observed. Density functional theory-based calculations suggest favorable absorption energies for N2 bonding to both V(IV) and V(III) cation sites but less so for V(V) sites. Hartree–Fock-based cluster calculations for N2–V end-on adsorption show that experimental XPS doublet features are consistent with the calculated shake-up and normal, final ionic configurations for N2 end-on bonding to V(III) sites but not V(IV) sites. The XPS spectra of vanadium oxide transferred in situ between electrochemical and UHV environments indicate that the oxide surfaces studied here are stable upon exposure to the electrolyte under NRR-relevant conditions.

Balogun, K.↗
DOE OSTI2020

Materials Data on SrN by Materials Project

SrN crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to seven N2- atoms to form a mixture of distorted edge and face-sharing SrN7 pentagonal bipyramids. There are a spread of Sr–N bond distances ranging from 2.62–3.00 Å. In the second Sr2+ site, Sr2+ is bonded in a rectangular see-saw-like geometry to four N2- atoms. There are a spread of Sr–N bond distances ranging from 2.57–2.65 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a 6-coordinate geometry to five Sr2+ and one N2- atom. The N–N bond length is 1.23 Å. In the second N2- site, N2- is bonded to six Sr2+ atoms to form edge-sharing NSr6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on IrN2 by Materials Project

IrN2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ir4+ is bonded to six N2- atoms to form IrN6 octahedra that share corners with eight equivalent IrN6 octahedra, corners with six NIr3N tetrahedra, and edges with two equivalent IrN6 octahedra. The corner-sharing octahedra tilt angles range from 65–69°. There are a spread of Ir–N bond distances ranging from 2.05–2.13 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded to three equivalent Ir4+ and one N2- atom to form distorted NIr3N tetrahedra that share corners with three equivalent IrN6 octahedra, corners with thirteen NIr3N tetrahedra, and an edgeedge with one NIr3N tetrahedra. The corner-sharing octahedra tilt angles range from 67–70°. The N–N bond length is 1.43 Å. In the second N2- site, N2- is bonded to three equivalent Ir4+ and one N2- atom to form NIr3N tetrahedra that share corners with three equivalent IrN6 octahedra, corners with thirteen NIr3N tetrahedra, and an edgeedge with one NIr3N tetrahedra. The corner-sharing octahedra tilt angles range from 64–66°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RhN2 by Materials Project

RhN2 is Spinel-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rh4+ is bonded to six N2- atoms to form RhN6 octahedra that share corners with eight equivalent RhN6 octahedra, corners with six NRh3N tetrahedra, and edges with two equivalent RhN6 octahedra. The corner-sharing octahedra tilt angles range from 68–70°. There are a spread of Rh–N bond distances ranging from 2.08–2.16 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded to three equivalent Rh4+ and one N2- atom to form NRh3N tetrahedra that share corners with three equivalent RhN6 octahedra, corners with thirteen NRh3N tetrahedra, and an edgeedge with one NRh3N tetrahedra. The corner-sharing octahedra tilt angles range from 65–67°. The N–N bond length is 1.31 Å. In the second N2- site, N2- is bonded to three equivalent Rh4+ and one N2- atom to form NRh3N tetrahedra that share corners with three equivalent RhN6 octahedra, corners with thirteen NRh3N tetrahedra, and an edgeedge with one NRh3N tetrahedra. The corner-sharing octahedra tilt angles range from 63–64°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlB3H14N by Materials Project

AlB3NH13AlB3NH15 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AlB3NH13 clusters and four AlB3NH15 clusters. In each AlB3NH13 cluster, Al3+ is bonded to one N2- and six H+0.57+ atoms to form distorted AlH6N pentagonal bipyramids that share edges with three BH4 tetrahedra. The Al–N bond length is 1.95 Å. There are a spread of Al–H bond distances ranging from 1.80–1.88 Å. There are three inequivalent B3- sites. In the first B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There are a spread of B–H bond distances ranging from 1.20–1.26 Å. In the second B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There are a spread of B–H bond distances ranging from 1.20–1.25 Å. In the third B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There are a spread of B–H bond distances ranging from 1.21–1.25 Å. N2- is bonded in a bent 150 degrees geometry to one Al3+ and one H+0.57+ atom. The N–H bond length is 1.03 Å. There are thirteen inequivalent H+0.57+ sites. In the first H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the second H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the third H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the fourth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the fifth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one N2- atom. In the sixth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the seventh H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the eighth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the ninth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the tenth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the eleventh H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the twelfth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the thirteenth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In each AlB3NH15 cluster, Al3+ is bonded to one N2- and six H+0.57+ atoms to form AlH6N pentagonal bipyramids that share edges with three BH4 tetrahedra. The Al–N bond length is 1.99 Å. There are a spread of Al–H bond distances ranging from 1.81–1.94 Å. There are three inequivalent B3- sites. In the first B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There is two shorter (1.21 Å) and two longer (1.25 Å) B–H bond length. In the second B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There are a spread of B–H bond distances ranging from 1.20–1.26 Å. In the third B3- site, B3- is bonded to four H+0.57+ atoms to form BH4 tetrahedra that share an edgeedge with one AlH6N pentagonal bipyramid. There are a spread of B–H bond distances ranging from 1.21–1.25 Å. N2- is bonded in a distorted tetrahedral geometry to one Al3+ and three H+0.57+ atoms. All N–H bond lengths are 1.03 Å. There are fifteen inequivalent H+0.57+ sites. In the first H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the second H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the third H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the fourth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the fifth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the sixth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the seventh H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one N2- atom. In the eighth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the ninth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one N2- atom. In the tenth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the eleventh H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one N2- atom. In the twelfth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the thirteenth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom. In the fourteenth H+0.57+ site, H+0.57+ is bonded in a single-bond geometry to one B3- atom. In the fifteenth H+0.57+ site, H+0.57+ is bonded in an L-shaped geometry to one Al3+ and one B3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PdS(NO)3 by Materials Project

PdN3SO3 is Ammonia-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four sulfur trioxide molecules and four PdN3 clusters. In each PdN3 cluster, Pd2+ is bonded in a distorted trigonal non-coplanar geometry to three N2+ atoms. There are a spread of Pd–N bond distances ranging from 1.76–1.91 Å. There are three inequivalent N2+ sites. In the first N2+ site, N2+ is bonded in a single-bond geometry to one Pd2+ atom. In the second N2+ site, N2+ is bonded in a single-bond geometry to one Pd2+ atom. In the third N2+ site, N2+ is bonded in a single-bond geometry to one Pd2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgN2O3 by Materials Project

(Hg3N5O9)2N2 crystallizes in the cubic P4_132 space group. The structure is three-dimensional and consists of four ammonia molecules and one Hg3N5O9 framework. In the Hg3N5O9 framework, Hg2+ is bonded in a distorted rectangular see-saw-like geometry to two equivalent N2+ and two equivalent O2- atoms. Both Hg–N bond lengths are 2.08 Å. Both Hg–O bond lengths are 2.87 Å. There are two inequivalent N2+ sites. In the first N2+ site, N2+ is bonded in a trigonal planar geometry to three equivalent Hg2+ atoms. In the second N2+ site, N2+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.25 Å) and two longer (1.27 Å) N–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N2+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Hg2+ and one N2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdH2C4(S3N2)2 by Materials Project

CdC4H2(N2S3)2 crystallizes in the orthorhombic Pbcn space group. The structure is two-dimensional and consists of two CdC4H2(N2S3)2 sheets oriented in the (0, 1, 0) direction. Cd2+ is bonded in a tetrahedral geometry to four S2- atoms. There are two shorter (2.58 Å) and two longer (2.60 Å) Cd–S bond lengths. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted single-bond geometry to one N2- and two S2- atoms. The C–N bond length is 1.32 Å. There is one shorter (1.72 Å) and one longer (1.76 Å) C–S bond length. In the second C4+ site, C4+ is bonded in a distorted single-bond geometry to one N2- and two S2- atoms. The C–N bond length is 1.34 Å. There is one shorter (1.69 Å) and one longer (1.74 Å) C–S bond length. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a distorted single-bond geometry to one C4+ atom. In the second N2- site, N2- is bonded in a distorted bent 120 degrees geometry to one C4+ and one H1+ atom. The N–H bond length is 1.03 Å. H1+ is bonded in a single-bond geometry to one N2- atom. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in an L-shaped geometry to two C4+ atoms. In the second S2- site, S2- is bonded in a 2-coordinate geometry to one Cd2+ and one C4+ atom. In the third S2- site, S2- is bonded in a water-like geometry to one Cd2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoH8C2N4(ClO2)2 by Materials Project

CoC2N4H8(O2Cl)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two CoC2N4H8(O2Cl)2 clusters. Co2+ is bonded in an octahedral geometry to four O2- and two equivalent Cl1- atoms. There are two shorter (2.08 Å) and two longer (2.10 Å) Co–O bond lengths. Both Co–Cl bond lengths are 2.42 Å. C4+ is bonded in a trigonal planar geometry to two N2- and one O2- atom. There is one shorter (1.32 Å) and one longer (1.34 Å) C–N bond length. The C–O bond length is 1.30 Å. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a trigonal planar geometry to one C4+ and two H1+ atoms. Both N–H bond lengths are 1.02 Å. In the second N2- site, N2- is bonded in a single-bond geometry to one C4+ atom. There are four 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 single-bond geometry to one N2- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N2- atom. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Co2+ and two H1+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Co2+ and one C4+ atom. Cl1- is bonded in a single-bond geometry to one Co2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnH2C4(S3N2)2 by Materials Project

ZnC4H2(N2S3)2 crystallizes in the orthorhombic Pbcn space group. The structure is two-dimensional and consists of two ZnC4H2(N2S3)2 sheets oriented in the (0, 1, 0) direction. Zn2+ is bonded in a tetrahedral geometry to four S2- atoms. There are two shorter (2.36 Å) and two longer (2.40 Å) Zn–S bond lengths. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted single-bond geometry to one N2- and two S2- atoms. The C–N bond length is 1.34 Å. There is one shorter (1.70 Å) and one longer (1.73 Å) C–S bond length. In the second C4+ site, C4+ is bonded in a distorted single-bond geometry to one N2- and two S2- atoms. The C–N bond length is 1.32 Å. There is one shorter (1.72 Å) and one longer (1.76 Å) C–S bond length. There are two inequivalent N2- sites. In the first N2- site, N2- is bonded in a distorted bent 120 degrees geometry to one C4+ and one H1+ atom. The N–H bond length is 1.03 Å. In the second N2- site, N2- is bonded in a distorted single-bond geometry to one C4+ atom. H1+ is bonded in a single-bond geometry to one N2- atom. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to one Zn2+ and one C4+ atom. In the second S2- site, S2- is bonded in a distorted water-like geometry to one Zn2+ and one C4+ atom. In the third S2- site, S2- is bonded in an L-shaped geometry to two C4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CuHS(NO)4 by Materials Project

CuHS(NO)4 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four CuHS(NO)4 clusters. Cu1+ is bonded in a distorted bent 150 degrees geometry to two equivalent N2+, one H1+, and one O2- atom. Both Cu–N bond lengths are 1.95 Å. The Cu–H bond length is 1.51 Å. The Cu–O bond length is 1.84 Å. There are two inequivalent N2+ sites. In the first N2+ site, N2+ is bonded in a single-bond geometry to one N2+ atom. The N–N bond length is 1.11 Å. In the second N2+ site, N2+ is bonded in a distorted linear geometry to one Cu1+ and one N2+ atom. H1+ is bonded in a single-bond geometry to one Cu1+ atom. S2- is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.47 Å) and one longer (1.56 Å) S–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Cu1+ and one S2- atom. In the second O2- site, O2- is bonded in a single-bond geometry to one S2- atom. In the third O2- site, O2- is bonded in a single-bond geometry to one S2- atom.

36 MATERIALS SCIENCE↗