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Lanthanide perchlorate complexes of o,o' diisopropyl, n(-4-antipyryl) phosphoramidate

Premlatha, C and Soundararajan, S (1980) Lanthanide perchlorate complexes of o,o' diisopropyl, n(-4-antipyryl) phosphoramidate. In: Bulletin des Societes Chimiques Belges, 89 (6). pp. 417-420.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/bscb.19...

Abstract

Five new complexes of lanthanide perchlorates with a new ligand O,O' diisopropyl N(-4-antipyryl) phosphoramidate (DIAP) of the general formula Ln(DIAP)4(ClO4)3 where Ln = La, Pr, Nd, Sm and Gd, have been synthesised and characterized by chemical analysis, IR(200–4000cm−1) and electronic spectra and electrical conductance data. Infrared spectral data indicate the coordination of the ligand to the metal ions in a bidentate fashion, through the C=O oxygen of the antipyrine group and the P=O group. IR and conductance values show that the three perchlorate groups are ionic. Electronic spectrum of the Nd3+ complex in the visible region, indicates reasonable covalency in the metal-ligand bond. The available data point to an eight coordinate geometry around the metal ions, with each ligand behaving in a bidentate ‘00’ fashion.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 03 Jan 2011 09:31
Last Modified: 03 Jan 2011 09:31
URI: http://eprints.iisc.ernet.in/id/eprint/34776

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