Materials Data on Mg6CoC by Materials Project
Mg6CoC crystallizes in the orthorhombic Amm2 space group. The structure is one-dimensional and consists of two Mg6CoC ribbons oriented in the (0, 0, 1) direction. there are four inequivalent Mg sites. In the first Mg site, Mg is bonded in a single-bond geometry to one C atom. The Mg–C bond length is 2.25 Å. In the second Mg site, Mg is bonded in a distorted L-shaped geometry to two equivalent C atoms. Both Mg–C bond lengths are 2.73 Å. In the third Mg site, Mg is bonded in a distorted water-like geometry to two equivalent Co atoms. Both Mg–Co bond lengths are 2.54 Å. In the fourth Mg site, Mg is bonded in a distorted rectangular see-saw-like geometry to two equivalent Co and two equivalent C atoms. Both Mg–Co bond lengths are 2.60 Å. Both Mg–C bond lengths are 2.37 Å. Co is bonded to four Mg atoms to form distorted edge-sharing CoMg4 cuboctahedra. C is bonded in a 8-coordinate geometry to eight Mg atoms.