Rb2ZnCl3 crystallizes in the monoclinic Pc space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one Zn(1), one Cl(1), one Cl(2), one Cl(3), and two equivalent Cl(5) atoms. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(4), and one Cl(5) atom. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one Zn(1), one Cl(5), one Cl(6), and two equivalent Cl(3) atoms. In the fourth Rb site, Rb(4) is bonded in a 5-coordinate geometry to one Cl(1), one Cl(3), one Cl(4), and two equivalent Cl(6) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one Rb(1) and one Rb(3) atom. In the second Zn site, Zn(2) is bonded in a tetrahedral geometry to one Cl(1), one Cl(2), one Cl(4), and one Cl(6) atom. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), one Rb(4), and one Zn(2) atom. In the second Cl site, Cl(2) is bonded in a 1-coordinate geometry to one Rb(1) and one Zn(2) atom. In the third Cl site, Cl(3) is bonded to one Rb(1), one Rb(4), and two equivalent Rb(3) atoms to form distorted corner-sharing ClRb4 tetrahedra. In the fourth Cl site, Cl(4) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(4), and one Zn(2) atom. In the fifth Cl site, Cl(5) is bonded in a 4-coordinate geometry to one Rb(2), one Rb(3), and two equivalent Rb(1) atoms. In the sixth Cl site, Cl(6) is bonded in a distorted single-bond geometry to one Rb(3), two equivalent Rb(4), and one Zn(2) atom.
Rb2ZnCl3 crystallizes in the monoclinic Pc space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one Zn(1), one Cl(1), one Cl(2), one Cl(3), and two equivalent Cl(5) atoms. The Rb(1)-Zn(1) bond length is 3.67 Å. The Rb(1)-Cl(1) bond length is 3.56 Å. The Rb(1)-Cl(2) bond length is 3.44 Å. The Rb(1)-Cl(3) bond length is 3.24 Å. There is one shorter (3.46 Å) and one longer (3.64 Å) Rb(1)-Cl(5) bond length. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to one Cl(1), one Cl(4), and one Cl(5) atom. The Rb(2)-Cl(1) bond length is 3.40 Å. The Rb(2)-Cl(4) bond length is 3.16 Å. The Rb(2)-Cl(5) bond length is 3.19 Å. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one Zn(1), one Cl(5), one Cl(6), and two equivalent Cl(3) atoms. The Rb(3)-Zn(1) bond length is 3.62 Å. The Rb(3)-Cl(5) bond length is 3.33 Å. The Rb(3)-Cl(6) bond length is 3.56 Å. There is one shorter (3.15 Å) and one longer (3.25 Å) Rb(3)-Cl(3) bond length. In the fourth Rb site, Rb(4) is bonded in a 5-coordinate geometry to one Cl(1), one Cl(3), one Cl(4), and two equivalent Cl(6) atoms. The Rb(4)-Cl(1) bond length is 3.46 Å. The Rb(4)-Cl(3) bond length is 3.11 Å. The Rb(4)-Cl(4) bond length is 3.20 Å. There is one shorter (3.27 Å) and one longer (3.55 Å) Rb(4)-Cl(6) bond length. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one Rb(1) and one Rb(3) atom. In the second Zn site, Zn(2) is bonded in a tetrahedral geometry to one Cl(1), one Cl(2), one Cl(4), and one Cl(6) atom. The Zn(2)-Cl(1) bond length is 2.31 Å. The Zn(2)-Cl(2) bond length is 2.29 Å. The Zn(2)-Cl(4) bond length is 2.31 Å. The Zn(2)-Cl(6) bond length is 2.31 Å. There are six inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(2), one Rb(4), and one Zn(2) atom. In the second Cl site, Cl(2) is bonded in a 1-coordinate geometry to one Rb(1) and one Zn(2) atom. In the third Cl site, Cl(3) is bonded to one Rb(1), one Rb(4), and two equivalent Rb(3) atoms to form distorted corner-sharing ClRb4 tetrahedra. In the fourth Cl site, Cl(4) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(4), and one Zn(2) atom. In the fifth Cl site, Cl(5) is bonded in a 4-coordinate geometry to one Rb(2), one Rb(3), and two equivalent Rb(1) atoms. In the sixth Cl site, Cl(6) is bonded in a distorted single-bond geometry to one Rb(3), two equivalent Rb(4), and one Zn(2) atom.