Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 6 (June 2007)

metal-organic compounds

 

Dimethyl 2,2'-bipyridine-6,6'-dicarboxylate and bis(dimethyl 2,2'-bipyridine-6,6'-dicarboxylato-²N,N')copper(I) tetrafluoroborate

A. J. Blake, N. R. Champness, P. V. Mason and C. Wilson

Abstract: The single-crystal X-ray structures of dimethyl 2,2'-bipyridine-6,6'-dicarboxylate, C₁₄H₁₂N₂O₄, and the copper(I) coordination complex bis(dimethyl 2,2'-bipyridine-6,6'-dicarboxylato-²N,N')copper(I) tetrafluoroborate, [Cu(C₁₄H₁₂N₂O₄)₂]BF₄, are reported. The uncoordinated ligand crystallizes across an inversion centre and adopts the anticipated anti pyridyl arrangement with coplanar pyridyl rings. In contrast, upon coordination of copper(I), the ligand adopts an arrangement of pyridyl donors facilitating chelating metal coordination and an increased inter-pyridyl twisting within each ligand. The distortion of each ligand contrasts with comparable copper(I) complexes of unfunctionalized 2,2'-bipyridine.

Formula: C₁₄H₁₂N₂O₄ and [Cu(C₁₄H₁₂N₂O₄)₂]BF₄

	Structure factor file (CIF format) (264.7 kbytes) [ doi:10.1107/S0108270107020914/hj3036Isup2.hkl ] Contains datablock I
	Structure factor file (CIF format) (67.2 kbytes) [ doi:10.1107/S0108270107020914/hj3036IIsup3.hkl ] Contains datablock II

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