DOI: 10.17188/1276810
title: Materials Data on Ba3Ce2C5O15F2 by Materials Project

description: Ba3Ce2(CO3)5F2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are four inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to seven O2- and three F1- atoms. There are a spread of Ba–O bond distances ranging from 2.75–2.94 Å. There are one shorter (2.76 Å) and two longer (2.92 Å) Ba–F bond lengths. In the second Ba2+ site, Ba2+ is bonded in a 11-coordinate geometry to eleven O2- atoms. There are a spread of Ba–O bond distances ranging from 2.70–3.03 Å. In the third Ba2+ site, Ba2+ is bonded to twelve O2- atoms to form edge-sharing BaO12 cuboctahedra. There are four shorter (2.98 Å) and eight longer (3.02 Å) Ba–O bond lengths. In the fourth Ba2+ site, Ba2+ is bonded to six O2- and six F1- atoms to form edge-sharing BaO6F6 cuboctahedra. There are four shorter (2.88 Å) and two longer (2.94 Å) Ba–O bond lengths. There are two shorter (3.00 Å) and four longer (3.05 Å) Ba–F bond lengths. There are two inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 10-coordinate geometry to nine O2- and one F1- atom. There are a spread of Ce–O bond distances ranging from 2.48–2.69 Å. The Ce–F bond length is 2.36 Å. In the second Ce3+ site, Ce3+ is bonded in a 10-coordinate geometry to nine O2- and one F1- atom. There are a spread of Ce–O bond distances ranging from 2.50–2.75 Å. The Ce–F bond length is 2.39 Å. There are five inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.30 Å) C–O bond length. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the third C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the fourth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.31 Å) C–O bond length. In the fifth C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Ba2+, one Ce3+, and one C4+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+, one Ce3+, and one C4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+, two equivalent Ce3+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Ba2+, two Ce3+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ba2+ and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to two Ba2+, one Ce3+, and one C4+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to two Ba2+, one Ce3+, and one C4+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+, one Ce3+, and one C4+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ba2+, one Ce3+, and one C4+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+, two equivalent Ce3+, and one C4+ atom. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a 4-coordinate geometry to three Ba2+ and one Ce3+ atom. In the second F1- site, F1- is bonded in a 1-coordinate geometry to three Ba2+ and one Ce3+ atom.