Materials Data on LaCeC4 by Materials Project

Abstract

CeLaC4 crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Ce3+ is bonded in a distorted q4 geometry to ten C+1.50- atoms. There are two shorter (2.58 Å) and eight longer (2.82 Å) Ce–C bond lengths. La3+ is bonded in a distorted q4 geometry to ten C+1.50- atoms. There are two shorter (2.58 Å) and eight longer (2.82 Å) La–C bond lengths. There are two inequivalent C+1.50- sites. In the first C+1.50- site, C+1.50- is bonded in a 6-coordinate geometry to three equivalent Ce3+, two equivalent La3+, and one C+1.50- atom. The C–C bond length is 1.31 Å. In the second C+1.50- site, C+1.50- is bonded in a 6-coordinate geometry to two equivalent Ce3+, three equivalent La3+, and one C+1.50- atom. The C–C bond length is 1.30 Å.