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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on RbC by Materials Project

RbC crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded to five C atoms to form distorted edge-sharing RbC5 square pyramids. There are a spread of Rb–C bond distances ranging from 3.17–3.36 Å. In the second Rb site, Rb is bonded in a 7-coordinate geometry to seven C atoms. There are a spread of Rb–C bond distances ranging from 3.13–3.36 Å. There are two inequivalent C sites. In the first C site, C is bonded in a 7-coordinate geometry to six Rb and one C atom. The C–C bond length is 1.27 Å. In the second C site, C is bonded in a 7-coordinate geometry to six Rb and one C atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbC10 by Materials Project

RbC10 crystallizes in the cubic Im-3 space group. The structure is three-dimensional. Rb1+ is bonded in a 6-coordinate geometry to twenty-two C+0.10- atoms. There are a spread of Rb–C bond distances ranging from 3.36–3.68 Å. There are three inequivalent C+0.10- sites. In the first C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to two equivalent Rb1+ and three C+0.10- atoms. There is one shorter (1.43 Å) and two longer (1.45 Å) C–C bond length. In the second C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to two equivalent Rb1+ and three C+0.10- atoms. The C–C bond length is 1.45 Å. In the third C+0.10- site, C+0.10- is bonded in a distorted trigonal planar geometry to three equivalent Rb1+ and three C+0.10- atoms. The C–C bond length is 1.43 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on RbC8 by Materials Project

RbC8 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Rb1+ is bonded to twelve C+0.12- atoms to form edge-sharing RbC12 cuboctahedra. There are eight shorter (3.21 Å) and four longer (3.23 Å) Rb–C bond lengths. There are two inequivalent C+0.12- sites. In the first C+0.12- site, C+0.12- is bonded in a distorted trigonal planar geometry to two equivalent Rb1+ and three C+0.12- atoms. There is one shorter (1.43 Å) and two longer (1.44 Å) C–C bond length. In the second C+0.12- site, C+0.12- is bonded in a distorted trigonal planar geometry to one Rb1+ and three C+0.12- atoms. The C–C bond length is 1.44 Å.

36 MATERIALS SCIENCE↗