Materials Data on Ce2CoSi3 by Materials Project
Ce2CoSi3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Ce4+ sites. In the first Ce4+ site, Ce4+ is bonded in a distorted body-centered cubic geometry to eight equivalent Si4- atoms. All Ce–Si bond lengths are 3.08 Å. In the second Ce4+ site, Ce4+ is bonded to twelve equivalent Si4- atoms to form face-sharing CeSi12 cuboctahedra. All Ce–Si bond lengths are 3.13 Å. Co4+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Co–Si bond lengths are 2.27 Å. Si4- is bonded in a 9-coordinate geometry to six Ce4+, one Co4+, and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.37 Å.