Oakley, Sarah H, Soria, Delia B, Coles, Martyn P and Hitchcock, Peter B (2006) Intramolecular Hydrogen Bonding in Complexes Containing Bicyclic Guanidine Ligands. Polyhedron, 25 (5). pp. 1247-1255. ISSN 0277-5387
Full text not available from this repository.Abstract
A series of complexes with the general formula MX2(hppH)2 [hppH = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine: 1, M = Mn, X = Cl; 2, M = Fe, X = Cl; 3, M = Ni, X = Cl; 4 M = Zn, X = Br] have been synthesized and structurally characterized. In all cases, the neutral guanidine ligand bonds through the imine nitrogen atom to a tetrahedral metal centre, with additional interaction between the secondary amino NH and the metal bound halide. The intramolecular hydrogen bonding gives two isomeric forms in the solid-state, referred to as ¿ and ¿, which co-crystallize in the unit cell. An example of intramolecular hydrogen bonding from the neutral hppH to oxygen within the dimeric core lithiated siloxide, [Ph3SiOLi(hppH)(THF)]2 (5), is also reported.
Item Type: | Article |
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Schools and Departments: | School of Life Sciences > Chemistry |
Depositing User: | Martyn Coles |
Date Deposited: | 06 Feb 2012 21:24 |
Last Modified: | 30 Mar 2012 11:05 |
URI: | http://sro.sussex.ac.uk/id/eprint/31142 |