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DOE OSTI2020

Materials Data on TmCoC2 by Materials Project

TmCoC2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Tm3+ is bonded in a 8-coordinate geometry to eight equivalent C+2.50- atoms. All Tm–C bond lengths are 2.61 Å. Co2+ is bonded in a 4-coordinate geometry to four equivalent C+2.50- atoms. There is two shorter (1.92 Å) and two longer (1.98 Å) Co–C bond length. C+2.50- is bonded in a 7-coordinate geometry to four equivalent Tm3+, two equivalent Co2+, and one C+2.50- atom. The C–C bond length is 1.38 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on TmCoC by Materials Project

TmCoC crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Tm3+ is bonded to four equivalent C4- atoms to form a mixture of distorted edge and corner-sharing TmC4 tetrahedra. All Tm–C bond lengths are 2.46 Å. Co1+ is bonded in a linear geometry to two equivalent C4- atoms. Both Co–C bond lengths are 1.80 Å. C4- is bonded to four equivalent Tm3+ and two equivalent Co1+ atoms to form a mixture of edge and corner-sharing CTm4Co2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°.

36 MATERIALS SCIENCE↗