Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 5 (May 2002)

Acta Cryst. (2002). C58, m313-m315 [doi:10.1107/S0108270102006297]

Enantiomeric bis(-N,N'-hexamethylenedisalicylaldiminato)dicopper(II) complexes

T. Friscic, A. J. Lough, G. Ferguson and B. Kaitner

Abstract: The title dimeric complex, bis{ [bold mu] -2,2'-[hexane-1,6-diylbis(nitrilomethylidyne)]diphenolato-1:2 [bold kappa] ⁴O,N:N',O'}dicopper(II),[Cu₂(C₂₀H₂₂N₂O₂)₂], has been investigated by single-crystal X-ray diffraction, by thermogravimetric analysis and differential scanning calorimetry, and also by FT-IR spectroscopy. Different synthetic and crystallization procedures gave crystals which were quite different in appearance, and it was initially thought that these were different polymorphic forms. Subsequent structure determination showed, in fact, serendipitous preparation of crystals in the P4₁ space group by one method and in space group P4₃ by the other. In these enantiomorphic structures, the Cu atoms have a distorted flattened tetrahedral coordination, with Cu-N and Cu-O distances in the ranges 1.954 (4)-1.983 (4) and 1.887 (4)-1.903 (4) Å, respectively.

Formula: Two enantiomorphs of [Cu₂(C₂₀H₂₂N₂O₂)₂]

Online 30 April 2002


	Structure factor file (CIF format) (379.4 kbytes) Contains datablock I

	Structure factor file (CIF format) (379.8 kbytes) Contains datablock II

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