K2CoSe2 crystallizes in the orthorhombic Ibam space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Co(1) and six equivalent Se(1) atoms. Co(1) is bonded to four equivalent K(1) and four equivalent Se(1) atoms to form distorted face-sharing CoK4Se4 tetrahedra. Se(1) is bonded in a 8-coordinate geometry to six equivalent K(1) and two equivalent Co(1) atoms.
K2CoSe2 crystallizes in the orthorhombic Ibam space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Co(1) and six equivalent Se(1) atoms. Both K(1)-Co(1) bond lengths are 3.38 Å. There are a spread of K(1)-Se(1) bond distances ranging from 3.32-3.65 Å. Co(1) is bonded to four equivalent K(1) and four equivalent Se(1) atoms to form distorted face-sharing CoK4Se4 tetrahedra. All Co(1)-Se(1) bond lengths are 2.43 Å. Se(1) is bonded in a 8-coordinate geometry to six equivalent K(1) and two equivalent Co(1) atoms.