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Synthesis, characterisation and crystal structure of a 1,4-diazacycloheptane complex of copper(II)

Lookup NU author(s): Emeritus Professor Bill CleggORCiD


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A new complex of formula [Cu(dach)2(CCl3CO2)]CCl3CO2 (dach = 1,4-diazacycloheptane) has been synthesised and its crystal structure determined by single-crystal X-ray diffraction. The crystal structure contains two independent copper(II)-centred cations (one disordered) and two trichloroacetate ions. Both copper(II) atoms are pentacoordinate. The chelated 1,4-diazacycloheptane moieties are in a double boat conformation and represent the first structurally characterised example of a trans configuration for two such ligands at a metal centre. The compound was also characterised by IR, electronic and EPR spectra, cyclic voltammetry, and magnetic susceptibility studies. (C) 2000 Elsevier Science Ltd.

Publication metadata

Author(s): Sen S, Kumar Saha M, Mitra S, Edwards AJ, Clegg W

Publication type: Article

Publication status: Published

Journal: Polyhedron

Year: 2000

Volume: 19

Issue: 15

Pages: 1881-1885

ISSN (print): 0277-5387

ISSN (electronic): 1973-3719

Publisher: Pergamon


DOI: 10.1016/S0277-5387(00)00480-0


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