Materials Data on Cu2WS4 by Materials Project
Cu2WS4 crystallizes in the tetragonal I-42m space group. The structure is two-dimensional and consists of two Cu2WS4 sheets oriented in the (0, 0, 1) direction. W6+ is bonded to four equivalent S2- atoms to form WS4 tetrahedra that share edges with four equivalent CuS4 tetrahedra. All W–S bond lengths are 2.25 Å. Cu1+ is bonded to four equivalent S2- atoms to form CuS4 tetrahedra that share corners with four equivalent CuS4 tetrahedra and edges with two equivalent WS4 tetrahedra. All Cu–S bond lengths are 2.33 Å. S2- is bonded in a 3-coordinate geometry to one W6+ and two equivalent Cu1+ atoms.