Novel heterometallic Cd/Cu complexes prepared using zerovalent copper: control of the nuclearity and structural diversity by halide counterions
Vinogradova, E. A., Vassilyeva, O. Y., Kokozay, V. N., Skelton, B. W., Bjernemosee, J. K. and Raithby, P. R., 2002. Novel heterometallic Cd/Cu complexes prepared using zerovalent copper: control of the nuclearity and structural diversity by halide counterions. Journal of the Chemical Society: Dalton Transactions
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Three kinds of Cd-II/Cu-II compounds of different nuclearity: tetranuclear [Cd2Cu2I4L4(dmso)(2)] 1, pentanuclear [Cd2Cu3Br6L4(dmso)(2)] 2 and hexanuclear [Cd4Cu2Cl6L6(H2O)(2)] 3, have been synthesised by the reaction of zerovalent copper and cadmium halides with non-aqueous (dmso, CH3CN) solutions of 2-dimethylaminoethanol (HL) in air. The choice of counteranion in the initial cadmium salt provides a useful method of altering the nuclearity and structure of the heterometallic Cd/Cu complexes. Crystallographic investigations reveal that 1 has a centrosymmetric tetranuclear structure with a zig-zag Cd-Cu-Cu-Cd skeleton. The molecular structure of 2 consists of a pentanuclear centrosymmetric core in which four metal atoms are linked together by bridging oxygen atoms of L groups and bromide anions to form a parallelogram Cu-Cd-Cu-Cd centred on the fifth Cu. The hexanuclear complex 3 is made up of two symmetry-related units with triangular CuCd2 cores linked by amino alkoxo bridges, involving cadmium centres of both units.
|Creators||Vinogradova, E. A., Vassilyeva, O. Y., Kokozay, V. N., Skelton, B. W., Bjernemosee, J. K. and Raithby, P. R.|
|Departments||Faculty of Science > Chemistry|
|Additional Information||ID number: ISI:000179238000026|
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