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The synthesis, crystal structure and some spectroscopic properties of [Ni(BBDH)(OH 2 )2]Br 2 .2 H 2 O, (BBDH = 1,6-bis(benzimidazol-2-yl)-2,5-dithiahexane), are reported. The compound is obtained from nickel bromide hydrate and BBDH in ethanol. It crystallizes in the triclinic space group P 1̄ with a = 1155.5(3), b = 1203.9(2), c = 1047.0(2) pm, α = 111.62(4), β = 114.25(2), γ = 86.74(3)°, and Z = 2. The structure consists of [Ni(BBDH)(OH 2 )2] 2+  cations joined through hydrogen bonding to two Br -  ions and two molecules water of crystallization. BBDH is bound to the Ni 2+    ion as quadridentate ligand with two N atoms of the two imidazole moieties in axial positions and the two S atoms in equatorial arrangement. The sixfold coordination is completed by two water molecules in trans-position to the S atoms. Raman, IR and mass spectra are discussed.

zeitschrift für naturforschung b

Darstellung, Eigenschaften und Kristallstruktur von [Diaqua-1,6-bis(benzimidazol-2-yl)-2,5-dithiahexan-nickel(II)]dibromid-Dihydrat / Synthesis, Properties and Molecular Structure of [Diaqua-1,6-bis(benzimidazol-2-yl)-2,5-dithiahexane-nickel(I I)]dibromide Dihydrate