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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ReH(CO)4 by Materials Project

ReH(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of two ReH(CO)4 clusters. there are three inequivalent Re7+ sites. In the first Re7+ site, Re7+ is bonded to four C and two H1+ atoms to form corner-sharing ReH2C4 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There is two shorter (1.94 Å) and two longer (2.00 Å) Re–C bond length. There is one shorter (1.87 Å) and one longer (1.89 Å) Re–H bond length. In the second Re7+ site, Re7+ is bonded to four C and two H1+ atoms to form corner-sharing ReH2C4 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Re–C bond distances ranging from 1.94–2.01 Å. There is one shorter (1.88 Å) and one longer (1.89 Å) Re–H bond length. In the third Re7+ site, Re7+ is bonded to four C and two H1+ atoms to form corner-sharing ReH2C4 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There are a spread of Re–C bond distances ranging from 1.94–2.01 Å. There is one shorter (1.88 Å) and one longer (1.89 Å) Re–H bond length. There are twelve inequivalent C sites. In the first C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.17 Å. In the second C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.15 Å. In the seventh C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.17 Å. In the ninth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the twelfth C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.15 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Re7+ atoms. In the second H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Re7+ atoms. In the third H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Re7+ atoms. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ReH(CO)4 by Materials Project

ReH(CO)4 is Copper structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four ReH(CO)4 clusters. there are two inequivalent Re7+ sites. In the first Re7+ site, Re7+ is bonded to four C and two H1+ atoms to form corner-sharing ReH2C4 octahedra. The corner-sharing octahedra tilt angles range from 34–40°. There are a spread of Re–C bond distances ranging from 1.93–2.02 Å. There is one shorter (1.82 Å) and one longer (1.84 Å) Re–H bond length. In the second Re7+ site, Re7+ is bonded to four C and two H1+ atoms to form corner-sharing ReH2C4 octahedra. The corner-sharing octahedra tilt angles range from 34–40°. There are a spread of Re–C bond distances ranging from 1.94–2.01 Å. There is one shorter (1.83 Å) and one longer (1.84 Å) Re–H bond length. There are eight inequivalent C sites. In the first C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.17 Å. In the second C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.17 Å. In the third C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.15 Å. In the fourth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C site, C is bonded in a linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.17 Å. In the eighth C site, C is bonded in a distorted linear geometry to one Re7+ and one O2- atom. The C–O bond length is 1.15 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a bent 150 degrees geometry to two Re7+ atoms. In the second H1+ site, H1+ is bonded in a bent 150 degrees geometry to two Re7+ atoms. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ni(CO)4 by Materials Project

Ni(CO)4 is Cubic alpha N2 structured and crystallizes in the cubic Pa-3 space group. The structure is zero-dimensional and consists of eight Ni(CO)4 clusters. Ni2+ is bonded in a distorted tetrahedral geometry to four C+1.50+ atoms. There is three shorter (1.79 Å) and one longer (1.80 Å) Ni–C bond length. There are two inequivalent C+1.50+ sites. In the first C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one Ni2+ and one O2- atom. The C–O bond length is 1.15 Å. In the second C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one Ni2+ and one O2- atom. The C–O bond length is 1.15 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+1.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnH(CO)4 by Materials Project

MnH(CO)4 is gamma plutonium structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two MnH(CO)4 clusters. there are three inequivalent Mn3+ sites. In the first Mn3+ site, Mn3+ is bonded to four C1+ and two H1+ atoms to form distorted corner-sharing MnH2C4 octahedra. The corner-sharing octahedra tilt angles range from 38–52°. There are a spread of Mn–C bond distances ranging from 1.82–1.87 Å. There is one shorter (1.68 Å) and one longer (1.70 Å) Mn–H bond length. In the second Mn3+ site, Mn3+ is bonded to four C1+ and two H1+ atoms to form distorted corner-sharing MnH2C4 octahedra. The corner-sharing octahedra tilt angles range from 38–56°. There is two shorter (1.82 Å) and two longer (1.87 Å) Mn–C bond length. There is one shorter (1.69 Å) and one longer (1.73 Å) Mn–H bond length. In the third Mn3+ site, Mn3+ is bonded to four C1+ and two H1+ atoms to form distorted corner-sharing MnH2C4 octahedra. The corner-sharing octahedra tilt angles range from 52–56°. There are a spread of Mn–C bond distances ranging from 1.83–1.87 Å. There is one shorter (1.74 Å) and one longer (1.75 Å) Mn–H bond length. There are twelve inequivalent C1+ sites. In the first C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the second C1+ site, C1+ is bonded in a distorted linear geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the third C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the fourth C1+ site, C1+ is bonded in a distorted single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the fifth C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the sixth C1+ site, C1+ is bonded in a distorted linear geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the seventh C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the eighth C1+ site, C1+ is bonded in a linear geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the ninth C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the tenth C1+ site, C1+ is bonded in a distorted single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the eleventh C1+ site, C1+ is bonded in a single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. In the twelfth C1+ site, C1+ is bonded in a distorted single-bond geometry to one Mn3+ and one O2- atom. The C–O bond length is 1.16 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a bent 150 degrees geometry to two Mn3+ atoms. In the second H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Mn3+ atoms. In the third H1+ site, H1+ is bonded in a bent 120 degrees geometry to two Mn3+ atoms. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the eighth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one C1+ atom. In the twelfth O2- site, O2- is bonded in a single-bond geometry to one C1+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2022

Low temperature catalytic conversion of CH 4 , CO 2 , and C 2 H 4 to value-added C 3 oxygenates and olefins via C 1 -C 2 coupling on Pd-Au/CeO 2

The catalytic conversion of CH 4 and CO 2 in the presence of more reactive co-reactants C 2 H 4 and O 2 on Pd-Au/CeO 2 is achieved at 200 °C and elevated pressures. Propene and acetone were produced from the catalyzed reaction of CH 4 +C 2 H 4 +O 2 ; addition of CO 2 to the reactant stream produced methyl acetate (MAc) but it significantly reduced the C-selectivities of propene and acetone. DRIFTS experiments confirmed the formation of methoxy species from CH 4 +CO 2 at 200 °C, which is an intermediate in the formation of MAc. Here, control experiments with blanks, and with CeO 2 did not show any propene, acetone, or MAc products. The complete oxidation of C 2 H 4 was avoided; the catalyst is stable, and reactant conversions and product yields were sustained for the observed 1200 min time-on-stream, indicating that there is little or no carbon deposition and sintering. This direct coupling of CH 4 and C 2 H 4 intermediates to higher carbon-number products at 200 °C is significant.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
NASA NTRS1989

Bonding in zerovalent Ni compounds - NiN2 and Ni(N2)4 compared with NiCO and Ni(CO)4

Calculations are carried out on NiN2, which may be considered a prototypical metal surface-ligand system. A large Gaussian basis set and an MCPF treatment of electron correlation are used. Consideration is also given to the 2Sigma(+) states of NiN2(-), NiCO(-), and NiN2(+), the low-lying 2Delta and 2Pi states of NiN2(+), and the 1A1 states of Ni(CO)4 and Ni(N2)4.

Bauschlicher, Charles W., Jr.↗
DOE OSTI2025

Higher Dimensionality in the Mg–Co–B System: Synthesis and Structure of Incommensurate Composite Mg 1+ε Co 4 B 4

Guided by high-temperature in situ X-ray diffraction, the discovery and synthesis of Mg 1+ε Co 4 B 4 (ε ≈ 0.272) using a MgH 2 hydride precursor is reported, along with a detailed crystal structure description and measurement of magnetic properties. The mismatch in lattice periodicities between Mg and Co–B substructures places Mg 1+ε Co 4 B 4 in the family of incommensurate composite crystals and prompted structural refinement in a (3 + 1)-dimensional model. The structure of Mg 1+ε Co 4 B 4 (P4 2 /ncm(00γ)s00s, a = 6.75847(7) Å, c = 3.94007(8) Å, q = (0, 0, 1.2721(3))) was refined from neutron powder diffraction and high-resolution powder X-ray diffraction data and confirmed by scanning transmission electron microscopy and electron diffraction. Mg 1+ε Co 4 B 4 is isostructural to Nd 1+ε Fe 4 B 4 and several related ternary borides with 0.07 ≤ ε ≤ 0.17, with Mg occupying the rare-earth site. Satellite reflections in the electron diffraction patterns hinted at positional modulation of the transition metal–boron substructure by Mg atoms, but this could not be refined from the neutron or X-ray diffraction data. Low-temperature magnetic measurements show no indications of long-range magnetic ordering or superconductivity down to 5 K. DFT calculations confirmed the absence of a magnetically ordered ground state and the stability of a 5:4 supercell (ε = 0.25) relative to the fully commensurate structure. Neutron diffraction and synthesis from elemental Mg demonstrated that Mg 1+ε Co 4 B 4 is not a hydrogen-stabilized phase. Mg 1+ε Co 4 B 4 represents the second compound reported in the Mg–Co–B system and the first superspace symmetry model of a Nd 1+ε Fe 4 B 4 -type incommensurate composite compound refined from powder diffraction data.

chemical structure↗
DOE OSTI2020

Materials Data on TlCo(CO)4 by Materials Project

CoTl(CO)4 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. All Co–C bond lengths are 1.75 Å. Tl1+ is bonded in a 6-coordinate geometry to three equivalent O2- atoms. All Tl–O bond lengths are 3.18 Å. There are two inequivalent C+1.50+ sites. In the first C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the second C+1.50+ site, C+1.50+ is bonded in a distorted linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 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 C+1.50+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsCo(CO)4 by Materials Project

CsCo(CO)4 crystallizes in the tetragonal I-4 space group. The structure is three-dimensional. Cs1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Cs–O bond lengths are 3.24 Å. Co1+ is bonded in a tetrahedral geometry to four equivalent C+1.50+ atoms. All Co–C bond lengths are 1.74 Å. C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. O2- is bonded in a distorted single-bond geometry to one Cs1+ and one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiCo(CO)4 by Materials Project

LiCo(CO)4 crystallizes in the cubic P-43m space group. The structure is three-dimensional. Li1+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All Li–O bond lengths are 1.97 Å. Co1+ is bonded in a tetrahedral geometry to four equivalent C+1.50+ atoms. All Co–C bond lengths are 1.73 Å. C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. O2- is bonded in a linear geometry to one Li1+ and one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ru(CO)4 by Materials Project

Ru(CO)4 crystallizes in the orthorhombic Ibam space group. The structure is zero-dimensional and consists of sixteen formaldehyde molecules and four ruthenium molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ru(CO)4 by Materials Project

Ru(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of forty-eight formaldehyde molecules and twelve ruthenium molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on KCo(CO)4 by Materials Project

KCo(CO)4 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.83–3.28 Å. Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. There is two shorter (1.74 Å) and two longer (1.75 Å) Co–C bond length. There are four inequivalent C+1.50+ sites. In the first C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the second C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the third C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the fourth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one C+1.50+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the third O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Noncollinear antiferromagnetic order in the buckled honeycomb lattice of magnetoelectric Co 4 Ta 2 O 9 determined by single-crystal neutron diffraction

Co 4 Ta 2 O 9 exhibits a three-dimensional magnetic lattice based on the buckled honeycomb motif. It shows unusual magnetoelectric effects, including the sign change and nonlinearity. These effects cannot be understood without the detailed knowledge of the magnetic structure. Herein, we report neutron diffraction and direction-dependent magnetic susceptibility measurements on Co 4 Ta 2 O 9 single crystals. In this work, below 20.3 K, we find a long-range antiferromagnetic order in the alternating buckled and flat honeycomb layers of Co 2+ ions stacked along the c axis. Within experimental accuracy, the magnetic moments lie in the ab plane. They form a canted antiferromagnetic structure with a tilt angle of ~14° at 15 K in the buckled layers, while the magnetic moments in each flat layer are collinear. This is directly evidenced by a finite (0, 0, 3) magnetic Bragg peak intensity, which would be absent in the collinear magnetic order. The magnetic space group is C2/c'. It is different from the previously reported C2/c' group, also found in the isostructural Co 4 Nb 2 O 9 . The revised magnetic structure successfully explains the major features of the magnetoelectric tensor of Co 4 Ta 2 O 9 within the framework of the spin-flop model.

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗
DOE OSTI2020

Materials Data on KCo(CO)4 by Materials Project

KCo(CO)4 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.76–3.26 Å. In the second K1+ site, K1+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.75–3.14 Å. In the third K1+ site, K1+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.74–3.21 Å. In the fourth K1+ site, K1+ is bonded in a distorted pentagonal planar geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.74–3.25 Å. There are four inequivalent Co1+ sites. In the first Co1+ site, Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. There are a spread of Co–C bond distances ranging from 1.73–1.75 Å. In the second Co1+ site, Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. There is three shorter (1.74 Å) and one longer (1.75 Å) Co–C bond length. In the third Co1+ site, Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. There is three shorter (1.74 Å) and one longer (1.75 Å) Co–C bond length. In the fourth Co1+ site, Co1+ is bonded in a tetrahedral geometry to four C+1.50+ atoms. There is three shorter (1.74 Å) and one longer (1.75 Å) Co–C bond length. There are sixteen inequivalent C+1.50+ sites. In the first C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the second C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the third C+1.50+ site, C+1.50+ is bonded in a distorted linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the fourth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the fifth C+1.50+ site, C+1.50+ is bonded in a distorted linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the sixth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the seventh C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the eighth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the ninth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the tenth C+1.50+ site, C+1.50+ is bonded in a distorted linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the eleventh C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the twelfth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the thirteenth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.17 Å. In the fourteenth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the fifteenth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. In the sixteenth C+1.50+ site, C+1.50+ is bonded in a linear geometry to one Co1+ and one O2- atom. The C–O bond length is 1.18 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one C+1.50+ atom. In the second O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the fourth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the fifth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the seventh O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one C+1.50+ atom. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom. In the twelfth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the thirteenth O2- site, O2- is bonded in a distorted linear geometry to one K1+ and one C+1.50+ atom. In the fourteenth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one C+1.50+ atom. In the fifteenth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one C+1.50+ atom. In the sixteenth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and one C+1.50+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbH(CO)4 by Materials Project

RbH(CO)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Rb–O bond distances ranging from 2.88–3.50 Å. There are four inequivalent C+1.50+ sites. In the first C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.31 Å. In the second C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.28 Å. In the third C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.24 Å. In the fourth C+1.50+ site, C+1.50+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.25 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.08 Å) and one longer (1.42 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one C+1.50+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Rb1+ and one C+1.50+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Rb1+, one C+1.50+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a water-like geometry to two equivalent Rb1+, one C+1.50+, and one H1+ atom.

36 MATERIALS SCIENCE↗