Structural Consequences of the Prohibition of Hydrogen Bonding in Copper-Guanidine Systems

Oakley, Sarah H, Coles, Martyn P and Hitchcock, Peter B (2004) Structural Consequences of the Prohibition of Hydrogen Bonding in Copper-Guanidine Systems. Inorganic Chemistry, 43 (16). 5168 - 5172. ISSN 0020-1669

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Abstract

The synthesis and structure of copper(I) complexes supported by N-substituted bicyclic guanidines is described. The N-methyl-substituted bicyclic guanidine 1,3,4,6,7,8-hexahydro-1-methyl-2H-pyrimido[1,2-a]pyrimidine (hppMe) reacted with copper(I) chloride to afford the ion-pair [Cu(hppMe)2][CuCl2] (1), a rare example of a compound containing an unsupported CCu interaction. The analogous reaction with CuI, however, afforded the molecular ,-dihalo-bridged dimer [CuI(hppMe)]2 (2). Inclusion of a trimethylsilyl substituent at nitrogen provided a sufficiently sterically encumbered environment to support a two coordinate copper center in CuCl(hppSiMe3) (3). Compounds 1-3 have been fully characterized, including single-crystal X-ray diffraction studies.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Depositing User: Martyn Coles
Date Deposited: 06 Feb 2012 19:54
Last Modified: 19 Mar 2013 13:59
URI: http://sro.sussex.ac.uk/id/eprint/22871
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