Materials Data on Co3(TeO4)2 by Materials Project
(Co6Te4O15)2O2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional and consists of two O2 ribbons oriented in the (0, 0, 1) direction and one Co6Te4O15 framework. In each O2 ribbon, O2- is bonded in a linear geometry to two equivalent O2- atoms. Both O–O bond lengths are 2.50 Å. In the Co6Te4O15 framework, there are three inequivalent Co+2.67+ sites. In the first Co+2.67+ site, Co+2.67+ is bonded to six O2- atoms to form a mixture of edge, face, and corner-sharing CoO6 octahedra. The corner-sharing octahedra tilt angles range from 28–57°. There are a spread of Co–O bond distances ranging from 1.95–2.19 Å. In the second Co+2.67+ site, Co+2.67+ is bonded to six O2- atoms to form a mixture of edge, face, and corner-sharing CoO6 octahedra. The corner-sharing octahedra tilt angles range from 28–57°. There are a spread of Co–O bond distances ranging from 1.95–2.19 Å. In the third Co+2.67+ site, Co+2.67+ is bonded to six O2- atoms to form a mixture of edge, face, and corner-sharing CoO6 octahedra. The corner-sharing octahedra tilt angles range from 28–57°. There are a spread of Co–O bond distances ranging from 1.95–2.19 Å. There are three inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is one shorter (1.92 Å) and two longer (1.93 Å) Te–O bond length. In the second Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is one shorter (1.92 Å) and two longer (1.93 Å) Te–O bond length. In the third Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. All Te–O bond lengths are 1.91 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted square co-planar geometry to four equivalent Co+2.67+ atoms. In the second O2- site, O2- is bonded in a distorted square co-planar geometry to four Co+2.67+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Co+2.67+ and one Te4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Co+2.67+ and one Te4+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two Co+2.67+ and one Te4+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Co+2.67+ and one Te4+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two Co+2.67+ and one Te4+ atom. In the eighth O2- site, O2- is bonded in a trigonal non-coplanar geometry to two equivalent Co+2.67+ and one Te4+ atom. In the ninth O2- site, O2- is bonded in a trigonal non-coplanar geometry to two Co+2.67+ and one Te4+ atom.