Deb, B and Sarmah, B J and Borah, B J and Dutta, D K (2009) ynthesis, characterisation and thermal studies of ruthenium(II) carbonyl complexes of functionalised tripodal phosphine chalcogen donor ligands, [CH3C(CH2P(X)Ph2)3], where X = Se, S, O. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 72 (2). pp. 339-442.

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Abstract

diphenylphosphinomethyl) ethane trichalcogenide ligands, [CH3C(CH2P(X)Ph2)3], where X= Se(a), S(b) and O(c) in 1:1 (metal:ligand) molar ratio to afford hexa-coordinated complexes of the type �2-(X,X)- [Ru(CO)2Cl2P3X3] (1a–c). The complexes 1a–c exhibit two equally intense �(CO) bands in the range 1979–2060cm−1 indicating cis-disposition of the two terminal carbonyl groups. The values of �(CO) frequencies containing different ligands, in general, follow the order: P3O3 >P3S3 >P3Se3 which may be explained in terms of ‘Soft–Hard’ (Ru(II)–O) and ‘Soft–Soft’ (Ru(II)–S/Se) interactions. The complexes have been characterized by elemental analyses, mass, 1H, 31P, 77Se and 13C NMR spectroscopy. The thermal stability of the complexes has also been studied

Item Type:	Article
Subjects:	Chemistry > Material Science
Divisions:	UNSPECIFIED
Depositing User:	Dr. PK Barooah
Date Deposited:	26 Dec 2011 11:21
Last Modified:	26 Dec 2011 11:21
URI:	http://neist.csircentral.net/id/eprint/60

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