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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LuB2C by Materials Project

LuB2C crystallizes in the tetragonal P4_2/mbc space group. The structure is three-dimensional. Lu3+ is bonded in a 4-coordinate geometry to four equivalent C3- atoms. There are two shorter (2.54 Å) and two longer (2.55 Å) Lu–C bond lengths. There are two inequivalent B sites. In the first B site, B is bonded in a distorted water-like geometry to two equivalent C3- atoms. Both B–C bond lengths are 1.62 Å. In the second B site, B is bonded in a distorted single-bond geometry to one C3- atom. The B–C bond length is 1.59 Å. C3- is bonded in a 7-coordinate geometry to four equivalent Lu3+ and three B atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LuB2C by Materials Project

LuB2C crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Lu3+ is bonded in a 8-coordinate geometry to eight equivalent B and six equivalent C3- atoms. There are four shorter (2.53 Å) and four longer (2.59 Å) Lu–B bond lengths. There are four shorter (2.74 Å) and two longer (2.78 Å) Lu–C bond lengths. B is bonded in a distorted single-bond geometry to four equivalent Lu3+ and one C3- atom. The B–C bond length is 1.61 Å. C3- is bonded in a 2-coordinate geometry to six equivalent Lu3+ and two equivalent B atoms.

36 MATERIALS SCIENCE↗