Synthetic, spectroscopic and structural studies on uranium and thorium complexes of diphosphazane dioxides

Aparna, Kasani and Krishnamurthy, Setharampattu S and Nethaji, Munirathinam (1995) Synthetic, spectroscopic and structural studies on uranium and thorium complexes of diphosphazane dioxides. In: Dalton Transactions (18). pp. 2991-2997.

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Abstract

Co-ordination complexes of the diphosphazane dioxides Ph(2)P(O)N(Pr-i)P(O)Ph(2) L(1). Ph(2)P(O)N(Pr-i)P(O)Ph(OC(6)H(4)Me-4) L(2) and Ph(2)P(O)N(Pr-i)P(O)(O2C12H8) L(3) with UO22+ or Th4+ ions have been synthesised and characterised by IR and NMR spectroscopy. The structures of [UO2(NO3)(2)L(1)] and [Th(NO3)(2)L(3)(1)][Th(NO3)(6)] are established by X-ray crystallography. In the former, the uranyl ion is bonded to two bidentate nitrate groups and the two phosphoryl groups of the ligand L(1); the co-ordination polyhedron around the metal is a hexagonal bipyramid. The cationic moiety in the thorium complex contains three bidentate diphosphazane dioxide ligands and two bidentate nitrate groups around the ten-co-ordinated metal.

Item Type:	Journal Article
Additional Information:	Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	26 May 2011 09:16
Last Modified:	26 May 2011 09:16
URI:	http://eprints.iisc.ernet.in/id/eprint/37952

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