Synthesis and structural characterization of some ruthenium(II) alkoxide complexes
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Date
2014-01-03
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Faculty of Physical Sciences, University of Ilorin
Abstract
The complex [RuCl2(COD)(OR)2] (COD = cyclo-octa-1,5-diene and R = CH3 or C2H5) has been prepared by treatment of the polymeric specie [{RuCl2(COD)}x]) with appropriate LiOR solution and has been characterized by elemental analysis, IR and lH NMR spectroscopic analyses. The reaction of the alkoxide complex with two or more equivalent of phosphine ligands gave the complex [Ru(COD)(OR)2L2] (R = CH3 or C2H5; L = methoxyphenyldiphenylphosphine and tri(m-tolyl)phosphine) while the subsequent reaction with diphenylphosphine yielded [Ru(OR)2(Ph2P)4] (R = C2H5). Spectroscopic and elemental analysis data revealed symmetric alkoxide bridged diruthenium phosphine complexes.
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Keywords
Ruthenium, alkoxide, cycloocta-1,5-diene, phosphine ligands