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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HoCoC by Materials Project

HoCoC crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Ho3+ is bonded to four equivalent C4- atoms to form a mixture of distorted edge and corner-sharing HoC4 tetrahedra. All Ho–C bond lengths are 2.49 Å. Co1+ is bonded in a linear geometry to two equivalent C4- atoms. Both Co–C bond lengths are 1.81 Å. C4- is bonded to four equivalent Ho3+ and two equivalent Co1+ atoms to form a mixture of edge and corner-sharing CHo4Co2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoCoC2 by Materials Project

HoCoC2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Ho3+ is bonded in a 8-coordinate geometry to eight equivalent C+2.50- atoms. There are four shorter (2.63 Å) and four longer (2.64 Å) Ho–C bond lengths. Co2+ is bonded in a 4-coordinate geometry to four equivalent C+2.50- atoms. There is two shorter (1.93 Å) and two longer (1.98 Å) Co–C bond length. C+2.50- is bonded in a 7-coordinate geometry to four equivalent Ho3+, two equivalent Co2+, and one C+2.50- atom. The C–C bond length is 1.38 Å.

36 MATERIALS SCIENCE↗