Materials Data on Th11(Ru2C3)6 by Materials Project

Abstract

Th11Ru12C18 crystallizes in the cubic I-43m space group. The structure is three-dimensional and consists of two thorium molecules and one Th5(Ru2C3)3 framework. In the Th5(Ru2C3)3 framework, there are two inequivalent Th4+ sites. In the first Th4+ site, Th4+ is bonded to six equivalent C4- atoms to form distorted corner-sharing ThC6 pentagonal pyramids. There are three shorter (2.74 Å) and three longer (2.88 Å) Th–C bond lengths. In the second Th4+ site, Th4+ is bonded in a 8-coordinate geometry to eight C4- atoms. There are four shorter (2.63 Å) and four longer (2.80 Å) Th–C bond lengths. Ru+2.33+ is bonded in a trigonal non-coplanar geometry to three C4- atoms. There are two shorter (1.98 Å) and one longer (2.10 Å) Ru–C bond lengths. There are two inequivalent C4- sites. In the first C4- site, C4- is bonded in a 7-coordinate geometry to four equivalent Th4+, two equivalent Ru+2.33+, and one C4- atom. The C–C bond length is 1.41 Å. In the second C4- site, C4- is bonded to four Th4+ and two equivalent Ru+2.33+ atoms to form a mixture of edge and corner-sharing CTh4Ru2 octahedra. The corner-sharing octahedra tilt angles range from 6–68°.