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At least 73 records · Page 4
All sourcesNASA NTRSDOE OSTI
DOE OSTI2021

Observation of pressure-induced electron transfer in SnC 2 O 4

We examined the high pressure behavior of stannous oxalate via Raman and X-ray absorption spectroscopy (XAS) inside a diamond anvil cell. Phase transitions were observed to occur near 2.6 and 15 GPa which were reversible upon decompression to ambient conditions. When further pressurized above 15 GPa, the colorless material sustains irreversible chemical alterations and becomes bright red colored – darkening at higher pressures. Another irreversible phase transition occurred above 20 GPa. Concomitant with color change of the sample, we observed a softening of the ν(C–C) modes of the C 2 O 4 2- anion via Raman spectroscopy. We performed a separate XAS experiment which indicates that the Sn 2+ cation undergoes a partial reduction of the 2+ oxidation state with pressure which persists when the sample was depressurized to ambient conditions. Thus, electron density within the C–C bond in the oxalate anion appears to migrate toward the tin cation with pressure. This observation suggests that pressure can offer a very controllable means to vary cation–anion and unit cell dimensions (and thus the electric interactions causing electron movement) and thus the pressure-induced synthesis of novel materials.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
DOE OSTI2020

Materials Data on SrC2(SN)2 by Materials Project

Sr(SCN)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Sr2+ is bonded in a 8-coordinate geometry to four equivalent N3- and four equivalent S2- atoms. There are two shorter (2.69 Å) and two longer (2.70 Å) Sr–N bond lengths. There are two shorter (3.20 Å) and two longer (3.28 Å) Sr–S bond lengths. C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.19 Å. The C–S bond length is 1.62 Å. N3- is bonded in a 1-coordinate geometry to two equivalent Sr2+ and one C4+ atom. S2- is bonded in a 3-coordinate geometry to two equivalent Sr2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuC2(SN)2 by Materials Project

EuC2(NS)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Eu2+ is bonded in a 8-coordinate geometry to four equivalent N3- and four equivalent S2- atoms. There are two shorter (2.64 Å) and two longer (2.65 Å) Eu–N bond lengths. There are two shorter (3.13 Å) and two longer (3.24 Å) Eu–S bond lengths. C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.19 Å. The C–S bond length is 1.62 Å. N3- is bonded in a 1-coordinate geometry to two equivalent Eu2+ and one C4+ atom. S2- is bonded in a 1-coordinate geometry to two equivalent Eu2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PbC2(SN)2 by Materials Project

Pb(SCN)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Pb2+ is bonded in a 8-coordinate geometry to four equivalent N3- and four equivalent S2- atoms. There are two shorter (2.72 Å) and two longer (2.74 Å) Pb–N bond lengths. There are two shorter (3.10 Å) and two longer (3.23 Å) Pb–S bond lengths. C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.19 Å. The C–S bond length is 1.62 Å. N3- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one C4+ atom. S2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2024

Role of CeNiSi 2 and BaNiSn 3 Structure Types in the Emergent Magnetism of the Homologous Series Ln n +1 M n X 3 n +1 :Ce 4 Fe 3 Ge 10

The synthesis and characterization of Ce 4 Fe 3 Ge 10 , n =3 member of the homologous series Ln n+1 M n X 3n+1 (Ln = lanthanides, M = transition metal, X = tetrel), is reported. The structure can be modelled with the Cmcm space group adopting the Eu 2 Ni 2-x Sn 5 structure type, with lattice parameters of a = 4.3323 (15) Å, b = 35.507 (9) Å, and c = 4.3069 (12) Å. Members of the series for n > 2 consist of stacking of ordered (CeNiSi 2 type) and disordered (BaNiSn 3 / AuCu 3 type) subunits with the acting as a “spacer” between CeNiSi 2 subunits. Although neither CeFeGe 3 nor CeFe 0.63 Ge 2 order magnetically down to 2 K, Ce 4 Fe 3 Ge 10 is an antiferromagnet below 3.6 K. To rationalize the emergent magnetism: (i) we established the Kondo and RKKY interaction dominant regions for the Ce analogues adopting the BaNiSn 3 and CeNiSi 2 by creating an electronic landscape for each, (ii) mapped the strained subunits, due to stacking, within the series. Here, we established the CeFeGe 3 subunit within Ce 4 Fe 3 Ge 10 contracts and is located within the Kondo-interaction dominant region, while the CeFe 0.63 Ge 2 subunit expands and is in the RKKY-interaction dominant region.

36 MATERIALS SCIENCE↗
DOE OSTI2023

Molecular beam epitaxy and crystal structure of majority a -plane-oriented and substrate-strained Mn 3 Sn thin films grown directly on sapphire (0001)

The Kagome antiferromagnet Mn 3 Sn has garnered much attention due to the presence of exciting properties such as anomalous Hall and Nernst effects. This paper discusses the synthesis of crystalline Mn 3 Sn thin films, prepared on Al 2 O 3 (0001) substrates at 453 ± 5°C using molecular beam epitaxy. The growth is monitored in situ using reflection high energy electron diffraction and measured ex situ using x-ray diffraction, Rutherford back-scattering, and cross-sectional scanning transmission electron microscopy. Our analysis shows the in-plane lattice constants of a 1,M = 4.117 ± 0.027 Å and a 2,M = 4.943 ± 0.033 Å, which is a very unexpected result when compared to the bulk a-plane Mn 3 Sn. This indicates a strain in the film and makes it challenging to provide a straightforward explanation. In an effort to explain our results, we discuss two possible orientation relationships between the Mn 3 Sn films and the sapphire substrates. Samples prepared under these conditions appear to have smooth surfaces locally, but overall the film has a 3D island morphology. First-principles calculations provide atomic models of the Mn 3 Sn (112¯0) lattice on Al 2 O 3 (0001) high symmetry sites, indicating that the L3-R90° is the most stable configuration. A detailed discussion of the experimental data and theoretical results, as well as strain effects, is provided.

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗
DOE OSTI2023

Single Crystal Growth of Synthetic Sulfide- and Phosphide-Based Minerals for Physical Measurements

In this work, we review recent advances in the use of high-temperature solution growth that allow for the growth of single crystalline samples of synthetic minerals. We outline how low-melting binary or ternary solutions are attractive solvents for solution growth and provide examples of the growth of bismuthinite (Bi 2 S 3 ), galena (PbS) and parkerite (Ni 3 Bi 2 S 2 ). We then focus on the Rh-S, Pd-S and Ni-P phase spaces to discuss how the low-melting regions near transition metal-main group eutectic compositions make excellent solvents for crystal growth of several binary and ternary minerals containing both high melting and volatile elements as well as for the discovery of new materials. We end by discussing the growth of synthetic canfieldite (Ag 8 SnS 6 ) and argyrodite (Ag 8 GeS 6 ) from Ag 2 S–Sn-S-based solutions.

58 GEOSCIENCES↗
DOE OSTI2020

Materials Data on NiC2(SN)2 by Materials Project

NiC2(NS)2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one NiC2(NS)2 sheet oriented in the (0, 0, 1) direction. Ni2+ is bonded to two equivalent N3- and four equivalent S2- atoms to form distorted edge-sharing NiS4N2 octahedra. Both Ni–N bond lengths are 1.93 Å. All Ni–S bond lengths are 2.53 Å. C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.64 Å. N3- is bonded in a distorted bent 150 degrees geometry to one Ni2+ and one C4+ atom. S2- is bonded in a 3-coordinate geometry to two equivalent Ni2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnH12C6(NO2)2 by Materials Project

SnC6H12(NO2)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four SnC6H12(NO2)2 clusters. Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Sn–O bond distances ranging from 2.16–2.48 Å. There are six inequivalent C sites. In the first C site, C is bonded in a trigonal planar geometry to one N3- and two O2- atoms. The C–N bond length is 1.36 Å. There is one shorter (1.29 Å) and one longer (1.31 Å) C–O bond length. In the second C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the fourth C site, C is bonded in a trigonal planar geometry to one N3- and two O2- atoms. The C–N bond length is 1.36 Å. There is one shorter (1.28 Å) and one longer (1.31 Å) C–O bond length. In the fifth C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the sixth C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.45 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to three C atoms. In the second N3- site, N3- is bonded in a trigonal planar geometry to three C atoms. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one Sn2+ and one C atom. In the second O2- site, O2- is bonded in a distorted L-shaped geometry to one Sn2+ and one C atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Sn2+ and one C atom. In the fourth O2- site, O2- is bonded in a distorted water-like geometry to one Sn2+ and one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnH12C6(S2N)2 by Materials Project

SnC6H12(NS2)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four SnC6H12(NS2)2 clusters. Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four S2- atoms. There are two shorter (2.63 Å) and two longer (2.80 Å) Sn–S bond lengths. There are three inequivalent C sites. In the first C site, C is bonded in a distorted trigonal planar geometry to one N3- and two S2- atoms. The C–N bond length is 1.34 Å. There is one shorter (1.72 Å) and one longer (1.74 Å) C–S bond length. In the second C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C site, C is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.46 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. N3- is bonded in a trigonal planar geometry to three C atoms. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in an L-shaped geometry to one Sn2+ and one C atom. In the second S2- site, S2- is bonded in a distorted L-shaped geometry to one Sn2+ and one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlSnPH18(C3Cl2)2 by Materials Project

Sn(CH3)3P(CH3)3AlCl4 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four trimethylphosphine molecules, four trimethyltin molecules, and four AlCl4 clusters. In each AlCl4 cluster, Al3+ is bonded in a tetrahedral geometry to four Cl1- atoms. There are three shorter (2.16 Å) and one longer (2.18 Å) Al–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Al3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnSb2H24C8(SCl)2 by Materials Project

SnC8Sb2H24(SCl)2 is Protactinium structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two SnC8Sb2H24(SCl)2 clusters. Sn4+ is bonded to two equivalent C2-, two equivalent S2-, and two equivalent Cl1- atoms to form SnC2S2Cl2 octahedra that share corners with two equivalent SbC3S tetrahedra. Both Sn–C bond lengths are 2.16 Å. Both Sn–S bond lengths are 2.79 Å. Both Sn–Cl bond lengths are 2.64 Å. There are four inequivalent C2- sites. In the first C2- site, C2- is bonded in a distorted trigonal non-coplanar geometry to one Sb3- and three H1+ atoms. The C–Sb bond length is 2.15 Å. There is two shorter (1.09 Å) and one longer (1.10 Å) C–H bond length. In the second C2- site, C2- is bonded in a distorted trigonal non-coplanar geometry to one Sb3- and three H1+ atoms. The C–Sb bond length is 2.14 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C2- site, C2- is bonded in a distorted trigonal non-coplanar geometry to one Sb3- and three H1+ atoms. The C–Sb bond length is 2.14 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the fourth C2- site, C2- is bonded in a distorted trigonal non-coplanar geometry to one Sn4+ and three H1+ atoms. There is two shorter (1.09 Å) and one longer (1.10 Å) C–H bond length. Sb3- is bonded to three C2- and one S2- atom to form SbC3S tetrahedra that share a cornercorner with one SnC2S2Cl2 octahedra. The corner-sharing octahedral tilt angles are 73°. The Sb–S bond length is 2.33 Å. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. 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. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. S2- is bonded in a water-like geometry to one Sn4+ and one Sb3- atom. Cl1- is bonded in a single-bond geometry to one Sn4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgC2(SN)2 by Materials Project

Hg(SCN)2 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one Hg(SCN)2 sheet oriented in the (0, 0, 1) direction. Hg2+ is bonded to four N3- and two S2- atoms to form edge-sharing HgS2N4 octahedra. There are three shorter (2.84 Å) and one longer (2.86 Å) Hg–N bond lengths. Both Hg–S bond lengths are 2.45 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. In the second C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one C4+ atom. In the second N3- site, N3- is bonded in a distorted single-bond geometry to two equivalent Hg2+ and one C4+ atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom. In the second S2- site, S2- is bonded in a water-like geometry to one Hg2+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mn2SnC10(BrO5)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnC3(I4N3)2 by Materials Project

SnC3(N3I4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sn4+ is bonded in a 5-coordinate geometry to five I1- atoms. There are a spread of Sn–I bond distances ranging from 2.79–3.58 Å. There are three inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a linear geometry to two N+1.33- atoms. Both C–N bond lengths are 1.24 Å. In the second C4+ site, C4+ is bonded in a linear geometry to two N+1.33- atoms. Both C–N bond lengths are 1.24 Å. In the third C4+ site, C4+ is bonded in a linear geometry to two N+1.33- atoms. Both C–N bond lengths are 1.24 Å. There are six inequivalent N+1.33- sites. In the first N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and five I1- atoms. There are a spread of N–I bond distances ranging from 3.22–3.92 Å. In the second N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and one I1- atom. The N–I bond length is 3.50 Å. In the third N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and three I1- atoms. There are a spread of N–I bond distances ranging from 3.46–3.87 Å. In the fourth N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and three I1- atoms. There are a spread of N–I bond distances ranging from 3.65–3.80 Å. In the fifth N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and five I1- atoms. There are a spread of N–I bond distances ranging from 3.17–3.97 Å. In the sixth N+1.33- site, N+1.33- is bonded in a single-bond geometry to one C4+ and four I1- atoms. There are a spread of N–I bond distances ranging from 3.36–3.88 Å. There are eight inequivalent I1- sites. In the first I1- site, I1- is bonded in a 1-coordinate geometry to four N+1.33- and one I1- atom. The I–I bond length is 2.69 Å. In the second I1- site, I1- is bonded in a 3-coordinate geometry to two N+1.33- and one I1- atom. The I–I bond length is 2.68 Å. In the third I1- site, I1- is bonded in a 5-coordinate geometry to four N+1.33- and one I1- atom. The I–I bond length is 2.71 Å. In the fourth I1- site, I1- is bonded in a 5-coordinate geometry to four N+1.33- and one I1- atom. In the fifth I1- site, I1- is bonded in a 1-coordinate geometry to two equivalent Sn4+ and one N+1.33- atom. In the sixth I1- site, I1- is bonded in a 1-coordinate geometry to one Sn4+, three N+1.33-, and one I1- atom. In the seventh I1- site, I1- is bonded in a distorted single-bond geometry to one Sn4+ atom. In the eighth I1- site, I1- is bonded in a 1-coordinate geometry to one Sn4+, three N+1.33-, and one I1- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KAgC2(SN)2 by Materials Project

KAg(CNS)2 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. K1+ is bonded in a 7-coordinate geometry to five N3- and two equivalent S2- atoms. There are a spread of K–N bond distances ranging from 2.78–3.23 Å. There are one shorter (3.39 Å) and one longer (3.45 Å) K–S bond lengths. Ag1+ is bonded to four S2- atoms to form a mixture of distorted edge and corner-sharing AgS4 tetrahedra. There are a spread of Ag–S bond distances ranging from 2.59–2.75 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. In the second C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.65 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a 1-coordinate geometry to three equivalent K1+ and one C4+ atom. In the second N3- site, N3- is bonded in a 1-coordinate geometry to two equivalent K1+ and one C4+ atom. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent K1+, two equivalent Ag1+, and one C4+ atom. In the second S2- site, S2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ag1+ and one C4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Co2SnC8(ClO4)2 by Materials Project

(Co(CO)4)2SnCl2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 7772-99-8 molecules and eight Co(CO)4 clusters. In four of the Co(CO)4 clusters, Co2+ is bonded in a trigonal pyramidal geometry to four C+1.25+ atoms. There are a spread of Co–C bond distances ranging from 1.78–1.80 Å. There are four inequivalent C+1.25+ sites. In the first C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.15 Å. In the second C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ 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+1.25+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom. In four of the Co(CO)4 clusters, Co2+ is bonded in a trigonal pyramidal geometry to four C+1.25+ atoms. There are a spread of Co–C bond distances ranging from 1.78–1.80 Å. There are four inequivalent C+1.25+ sites. In the first C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the second C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C+1.25+ site, C+1.25+ is bonded in a linear geometry to one Co2+ 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+1.25+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+1.25+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnC2(SN)2 by Materials Project

Zn(SCN)2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one Zn(SCN)2 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a tetrahedral geometry to four N3- atoms. There is three shorter (1.97 Å) and one longer (1.98 Å) Zn–N bond length. In the second Zn2+ site, Zn2+ is bonded in a tetrahedral geometry to four S2- atoms. There are two shorter (2.38 Å) and two longer (2.39 Å) Zn–S bond lengths. There are four inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.64 Å. In the second C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.64 Å. In the third C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.64 Å. In the fourth C4+ site, C4+ is bonded in a distorted linear geometry to one N3- and one S2- atom. The C–N bond length is 1.18 Å. The C–S bond length is 1.64 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a linear geometry to one Zn2+ and one C4+ atom. In the second N3- site, N3- is bonded in a linear geometry to one Zn2+ and one C4+ atom. In the third N3- site, N3- is bonded in a linear geometry to one Zn2+ and one C4+ atom. In the fourth N3- site, N3- is bonded in a linear geometry to one Zn2+ and one C4+ atom. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted water-like geometry to one Zn2+ and one C4+ atom. In the second S2- site, S2- is bonded in an L-shaped geometry to one Zn2+ and one C4+ atom. In the third S2- site, S2- is bonded in a distorted water-like geometry to one Zn2+ and one C4+ atom. In the fourth S2- site, S2- is bonded in an L-shaped geometry to one Zn2+ and one C4+ atom.

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