K2BeCl4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to two equivalent Cl(3), three equivalent Cl(2), and four equivalent Cl(1) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one Cl(2), three equivalent Cl(3), and four equivalent Cl(1) atoms. Be(1) is bonded in a tetrahedral geometry to one Cl(2), one Cl(3), and two equivalent Cl(1) atoms. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one Be(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one Be(1) atom. In the third Cl site, Cl(3) is bonded in a distorted single-bond geometry to two equivalent K(1), three equivalent K(2), and one Be(1) atom.
K2BeCl4 crystallizes in the orthorhombic Pnma space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 9-coordinate geometry to two equivalent Cl(3), three equivalent Cl(2), and four equivalent Cl(1) atoms. There is one shorter (3.10 Å) and one longer (3.26 Å) K(1)-Cl(3) bond length. There is one shorter (3.18 Å) and two longer (3.59 Å) K(1)-Cl(2) bond lengths. There are two shorter (3.18 Å) and two longer (3.22 Å) K(1)-Cl(1) bond lengths. In the second K site, K(2) is bonded in a 8-coordinate geometry to one Cl(2), three equivalent Cl(3), and four equivalent Cl(1) atoms. The K(2)-Cl(2) bond length is 3.20 Å. There are two shorter (3.45 Å) and one longer (3.49 Å) K(2)-Cl(3) bond length. There are two shorter (3.34 Å) and two longer (3.39 Å) K(2)-Cl(1) bond lengths. Be(1) is bonded in a tetrahedral geometry to one Cl(2), one Cl(3), and two equivalent Cl(1) atoms. The Be(1)-Cl(2) bond length is 2.02 Å. The Be(1)-Cl(3) bond length is 2.04 Å. Both Be(1)-Cl(1) bond lengths are 2.02 Å. There are three inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to two equivalent K(1), two equivalent K(2), and one Be(1) atom. In the second Cl site, Cl(2) is bonded in a distorted single-bond geometry to one K(2), three equivalent K(1), and one Be(1) atom. In the third Cl site, Cl(3) is bonded in a distorted single-bond geometry to two equivalent K(1), three equivalent K(2), and one Be(1) atom.