Materials Data on C2SeN2 by Materials Project

C2N2Se crystallizes in the orthorhombic Cmce space group. The structure is two-dimensional and consists of four C2N2Se sheets oriented in the (0, 0, 1) direction. C4+ is bonded in a distorted single-bond geometry to one N3- and one Se2- atom. The C–N bond length is 1.17 Å. The C–Se bond length is 1.88 Å. N3- is bonded in a distorted single-bond geometry to one C4+ and one Se2- atom. The N–Se bond length is 2.73 Å. Se2- is bonded in a rectangular see-saw-like geometry to two equivalent C4+ and two equivalent N3- atoms.