Materials Data on Rb4C by Materials Project
Rb4C crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Rb4C ribbons oriented in the (1, 0, 0) direction. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 2-coordinate geometry to two equivalent C4- atoms. Both Rb–C bond lengths are 3.30 Å. In the second Rb1+ site, Rb1+ is bonded in a distorted L-shaped geometry to two equivalent C4- atoms. Both Rb–C bond lengths are 3.26 Å. C4- is bonded in a body-centered cubic geometry to eight Rb1+ atoms.