Materials Data on Y3CBr3 by Materials Project
Y3CBr3 crystallizes in the trigonal R-3 space group. The structure is two-dimensional and consists of three Y3CBr3 sheets oriented in the (0, 0, 1) direction. Y is bonded to two equivalent C and three equivalent Br atoms to form a mixture of edge and corner-sharing YC2Br3 square pyramids. Both Y–C bond lengths are 2.53 Å. There are a spread of Y–Br bond distances ranging from 2.84–2.94 Å. C is bonded to six equivalent Y atoms to form edge-sharing CY6 octahedra. Br is bonded in a distorted T-shaped geometry to three equivalent Y atoms.