Rb2MnSe2 crystallizes in the orthorhombic Ibam space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Mn(1) and six equivalent Se(1) atoms. Mn(1) is bonded to four equivalent Rb(1) and four equivalent Se(1) atoms to form distorted face-sharing MnRb4Se4 tetrahedra. Se(1) is bonded in a 8-coordinate geometry to six equivalent Rb(1) and two equivalent Mn(1) atoms.
Rb2MnSe2 crystallizes in the orthorhombic Ibam space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Mn(1) and six equivalent Se(1) atoms. Both Rb(1)-Mn(1) bond lengths are 3.58 Å. There are a spread of Rb(1)-Se(1) bond distances ranging from 3.48-3.86 Å. Mn(1) is bonded to four equivalent Rb(1) and four equivalent Se(1) atoms to form distorted face-sharing MnRb4Se4 tetrahedra. All Mn(1)-Se(1) bond lengths are 2.57 Å. Se(1) is bonded in a 8-coordinate geometry to six equivalent Rb(1) and two equivalent Mn(1) atoms.