Acta Crystallographica Section C

Crystal Structure Communications

Volume 59, Part 11 (November 2003)

gg1181 scheme

Acta Cryst. (2003). C59, m478-m481 [doi:10.1107/S0108270103021978]

Influence of Cl/Br substitution on the stereochemical peculiarities of copper(I) -complexes with the 1-allyl-2-aminopyridinium cation

E. Goreshnik, D. Schollmeier and M. Mys'kiv

Abstract: By using alternating-current electrochemical synthesis, crystals of the Cu^I [bold pi] -complexes bis(1-allyl-2-aminopyridinium) di- [bold mu] -chloro-bis[chlorocopper(I)], (C₈H₁₁N₂)₂[Cu₂Cl₄] or [H₂NC₅H₄NC₃H₅][CuCl₂], and bis(1-allyl-2-aminopyridinium) di--(chloro/bromo)-bis[(chloro/bromo)copper(I)], (C₈H₁₁N₂)₂[Cu₂Br_2.2Cl_1.8] or [H₂NC₅H₄NC₃H₅][CuBr_1.10Cl_0.90], have been obtained and structurally investigated. In each of the isostructural (isomorphous) compounds, the distorted tetrahedral Cu environment involves three halide atoms and the C=C bond of the ligand. Both compounds reside on inversion centres, and the dimeric [Cu₂X₄·2H₂NC₅H₄NC₃H₅] units are bonded into a three-dimensional structure by N-HX hydrogen bonds. The Br content in the terminal X1 position is much higher than that in the bridged X2 site.

Formula: (C₈H₁₁N₂)₂[Cu₂Cl₄] and (C₈H₁₁N₂)₂[Cu₂Br_2.2Cl_1.8]

Online 22 October 2003


	Structure factor file (CIF format) (101.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (104.7 kbytes) Contains datablock II

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