Abstract
Crystal structures of Cs4[Re6Te8(CN)6]·2H2O (1) and Ba2[Re6Te8(CN)6]· 12H2O (2) are determined. Crystals 1 are orthorhombic, a = 14,282(1), b = 12.910(1), c = 18.040(1) Å, Vcell = 3326.3(8) Å3, space group Pbcn, Z = 4, dcalc = 5.715 g/cm3, R(F) = 0.0482 for 3193 Fhkl > 4σ(F). Crystals 2 are triclinic, a = 9.671(3), b = 9.697(4), c = 11.039(4) Å, α = 89.86(3), β = 72.34(3), γ = 82.46(3)∘, Vcell = 977.2(6) Å3, space group P1, Z = 1, dcalc = 4.733 g/cm3, R(F) = 0.0490 for 3226 Fhkl > 4σ(F). In both structures, the [Re6Te8(CN)6]4− anions form a distorted primitive cubic packing with distances between the centers 9.02-9.63 Å in 1 and 9.70-11.04 Å in 2. The Cs+ cations in 1 lie near the face centers of the cubes formed by the onions. In 2, cation pairs (Ba2+)2 bonded to two solvate water molecules are formed; the pairs lie at the centers of the anion cubes. In structures 1 and 2, there are shortened contacts between the tellurium atoms belonging to the neighboring anions (3.75-4.09 and 3.95-4.22 Å, respectively).
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Translated fromZhurnal Struktumoi Khimii, Vol. 39, No. 5, pp. 885–893, 1998, September–October, 1998.
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Imoto, H., Naumov, N.G., Virovets, A.V. et al. Primitive cubic packing of anions in Cs4[Re6Te8(CN)6]· 2H2O and Ba2[Re6Te8(CN)6] · 12H2O crystals. J Struct Chem 39, 720–727 (1998). https://doi.org/10.1007/BF02903545
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DOI: https://doi.org/10.1007/BF02903545