Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.molstruc.2006.03.036
Title: Delineating the principles controlling polymer formation and topology in zinc(II)- and cadmium(II)-dithiophosphate adducts of diimine-type ligands
Authors: Lai, C.S. 
Tiekink, E.R.T.
Keywords: Cadmium
Crystal and molecular structure
Dipyridyl-type ligands
Dithiophosphate
Polymer formation
Polymer topology
Zinc
Issue Date: 30-Aug-2006
Citation: Lai, C.S., Tiekink, E.R.T. (2006-08-30). Delineating the principles controlling polymer formation and topology in zinc(II)- and cadmium(II)-dithiophosphate adducts of diimine-type ligands. Journal of Molecular Structure 796 (1-3) : 114-118. ScholarBank@NUS Repository. https://doi.org/10.1016/j.molstruc.2006.03.036
Abstract: The crystal structure determination of polymeric [Cd(S2P(OCy)2)2(3-NC5H4C(H){double bond, short}NN{double bond, short}C(H)C5H4N-3)·(CHCl3)2]∞, where Cy is cyclohexyl and the bridging ligand is 3-pyridinealdazine, shows that the cadmium atom exists within a trans-N2S4 donor set and that the resultant polymer topology is of a step-ladder. It is argued that this is the expected structure for the compound as it concurs with the structure of the related iso-propyl derivative. Indeed, in most cases polymer topology in related cadmium dithiophosphate systems is controlled by the nature of the bridging diimine-type ligand. By contrast, in the analogous zinc dithiophosphate adducts, controlling polymer topology is possible by systematically varying the steric profile of the dithiophosphate-bound R groups, a phenomenon ascribed to the fact that in the zinc system, the zinc-ligand distances being shorter, bring all the components of the structure in close proximity and thereby exacerbates steric effects. An overview of our accomplishments in this area 'crystal engineering of coordination polymers' is presented herein. © 2006 Elsevier B.V. All rights reserved.
Source Title: Journal of Molecular Structure
URI: http://scholarbank.nus.edu.sg/handle/10635/105792
ISSN: 00222860
DOI: 10.1016/j.molstruc.2006.03.036
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