Materials Data on Ta3SBr7 by Materials Project
Ta3SBr7 crystallizes in the monoclinic Cm space group. The structure is two-dimensional and consists of one Ta3SBr7 sheet oriented in the (0, 0, 1) direction. there are two inequivalent Ta3+ sites. In the first Ta3+ site, Ta3+ is bonded to one S2- and five Br1- atoms to form distorted edge-sharing TaSBr5 octahedra. The Ta–S bond length is 2.41 Å. There are a spread of Ta–Br bond distances ranging from 2.56–2.84 Å. In the second Ta3+ site, Ta3+ is bonded to one S2- and five Br1- atoms to form distorted edge-sharing TaSBr5 octahedra. The Ta–S bond length is 2.41 Å. There are a spread of Ta–Br bond distances ranging from 2.56–2.84 Å. S2- is bonded in a 3-coordinate geometry to three Ta3+ atoms. There are five inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 2-coordinate geometry to two Ta3+ atoms. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to three Ta3+ atoms. In the third Br1- site, Br1- is bonded in a water-like geometry to two equivalent Ta3+ atoms. In the fourth Br1- site, Br1- is bonded in a 2-coordinate geometry to two equivalent Ta3+ atoms. In the fifth Br1- site, Br1- is bonded in a water-like geometry to two Ta3+ atoms.