Materials Data on Tb2ReC2 by Materials Project
Tb2ReC2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to five C atoms to form a mixture of edge and corner-sharing TbC5 square pyramids. There are a spread of Tb–C bond distances ranging from 2.51–2.59 Å. In the second Tb site, Tb is bonded in a distorted rectangular see-saw-like geometry to four C atoms. There are a spread of Tb–C bond distances ranging from 2.54–2.71 Å. Re is bonded in a distorted trigonal planar geometry to three C atoms. There are a spread of Re–C bond distances ranging from 1.93–2.04 Å. There are two inequivalent C sites. In the first C site, C is bonded to five Tb and one Re atom to form a mixture of edge and corner-sharing CTb5Re octahedra. The corner-sharing octahedra tilt angles range from 3–39°. In the second C site, C is bonded to four Tb and two equivalent Re atoms to form a mixture of edge and corner-sharing CTb4Re2 octahedra. The corner-sharing octahedra tilt angles range from 12–39°.