Rb2CoCl4 crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Cl(3), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(4) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Cl(3), two equivalent Cl(2), two equivalent Cl(4), and three equivalent Cl(1) atoms. Co(1) is bonded in a tetrahedral geometry to one Cl(1), one Cl(2), one Cl(3), and one Cl(4) atom. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), three equivalent Rb(2), and one Co(1) atom. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Co(1) atom. In the third Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), and one Co(1) atom. In the fourth Cl site, Cl(4) is bonded in a 1-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Co(1) atom.
Rb2CoCl4 crystallizes in the orthorhombic Pna2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Cl(3), two equivalent Cl(1), two equivalent Cl(2), and two equivalent Cl(4) atoms. The Rb(1)-Cl(3) bond length is 3.35 Å. There is one shorter (3.37 Å) and one longer (3.47 Å) Rb(1)-Cl(1) bond length. There is one shorter (3.39 Å) and one longer (3.40 Å) Rb(1)-Cl(2) bond length. Both Rb(1)-Cl(4) bond lengths are 3.37 Å. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Cl(3), two equivalent Cl(2), two equivalent Cl(4), and three equivalent Cl(1) atoms. The Rb(2)-Cl(3) bond length is 3.32 Å. There is one shorter (3.60 Å) and one longer (3.71 Å) Rb(2)-Cl(2) bond length. There is one shorter (3.65 Å) and one longer (3.86 Å) Rb(2)-Cl(4) bond length. There are a spread of Rb(2)-Cl(1) bond distances ranging from 3.65-3.75 Å. Co(1) is bonded in a tetrahedral geometry to one Cl(1), one Cl(2), one Cl(3), and one Cl(4) atom. The Co(1)-Cl(1) bond length is 2.27 Å. The Co(1)-Cl(2) bond length is 2.25 Å. The Co(1)-Cl(3) bond length is 2.25 Å. The Co(1)-Cl(4) bond length is 2.25 Å. There are four inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), three equivalent Rb(2), and one Co(1) atom. In the second Cl site, Cl(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Co(1) atom. In the third Cl site, Cl(3) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), and one Co(1) atom. In the fourth Cl site, Cl(4) is bonded in a 1-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and one Co(1) atom.