SYNTHESIS AND CRYSTAL STRUCTURE OF THE OCTAHEDRAL CYANO-BRIDGED CLUSTER COMPLEX ОІ-[{Ni(NH3)5}2{Re6Te8(CN)6}]·4H2O
K. A. Brylev, Y. V. Mironov, V. E. Fedorov
Keywords: octahedral cluster, rhenium, nickel, synthesis, crystal structure
Pages: 1249-1252
Abstract
The rhenium cyano-bridged cluster complex with a composition of β-[{Ni(NH3)5}2{Re6Te8(CN)6}]·4H2O is obtained and structurally characterized. The compound crystallizes in the triclinic space group with the unit cell parameters: a = 9.997(2) Å, b = 10.423(2) Å, c = 11.714(2) Å, α = 100.92(3)°, β = 111.87(3)°, γ = 98.05(3)°, V = 1082.1(4) Å3, Z = 1, dcalc = 4.072 g/cm3. The rhenium atoms of the {Re6Te8} cluster core are coordinated by CN ligands to form the [Re6Te8(CN)6]4- cluster; two nitrogen atoms of CN ligands trans-positioned with respect to each other are coordinated to Ni atoms in the {Ni(NH3)5}2+ fragments to form the molecular complexes of [{Ni(NH3)5}2{Re6Te8(CN)6}]. The crystal structure is the H-bonded packing of these molecular complexes and crystallization water molecules.
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