Acta Crystallographica Section C

Crystal Structure Communications

Volume 65, Part 7 (July 2009)

metal-organic compounds

 

Di--chlorido-bis[chlorido(4'-p-tolyl-2,2':6',2''-terpyridine-³N,N',N'')nickel(II)]: a supramolecular system constructed by C-HCl interactions

Y.-L. Chen, B.-Z. Li, P. Yang and J.-Z. Wu

Abstract: The title complex, [Ni₂Cl₄(C₂₂H₁₇N₃)₂], was synthesized solvothermally. The molecule is a centrosymmetric dimer with the unique Ni^II centre in a distorted octahedral N₃Cl₃ coordination environment. The chloride bridges are highly asymmetric. In the 4'-p-tolyl-2,2':6',2''-terpyridine ligand, the p-tolyl group is perfectly coplanar with the attached pyridine ring, and this differs from the situation found in previously reported compounds; however, there are no - interactions between the ligands. The terminal Cl atom forms four intermolecular C-HCl hydrogen bonds with one methyl and three methine groups. The methyl group also forms intermolecular C-H interactions with a pyridine ring. These nonclassical hydrogen bonds extend the molecule into a three-dimensional network.

Formula: [Ni₂Cl₄(C₂₂H₁₇N₃)₂]

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