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Synthesis and structural characterization of mixed-ligand silver(I) complexes containing diphosphazanes and bidentate N-donor ligands

Krishna, Heera and Krishnamurthy, Setharampattu S and Nethaji, Munirathinam (2009) Synthesis and structural characterization of mixed-ligand silver(I) complexes containing diphosphazanes and bidentate N-donor ligands. In: Inorganica Chimica Acta, 362 (1). pp. 38-42.

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Abstract

The reactions of a self-assembled silver(I) coordination polymer, [Ag2{μ-PriN(PPh2)2}(μ-NO3)2]n (1) with various bidentate N-donor ligands such as DABCO, 2,2′-bipyridyl and 1,10-phenanthroline yield 1-D helices or π–π stacked polymers, depending on the chelate vector of the N-donor ligand. The molecular structures of the resultant complexes, [Ag2{μ-PriN(PPh2)2}(DABCO)(NO3)2]n (2), [Ag2{μ-PriN(PPh2)2}(2,2′-bipy)2(NO3)2] (3) and [Ag2{μ-PriN(PPh2)2}(1,10-phen)2](NO3)2 (4) have been confirmed by single-crystal X-ray diffraction. Complex 2 exists as an infinite helical polymer because of the exo-bidentate nature of DABCO. Complex 3 assumes a 2D grid motif as a result of intermolecular π–π stacking among adjacent bipyridine moieties. The phenanthroline complex 4 exhibits strong inter- and intramolecular π–π stacking interactions.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Phosphorus(III) ligands;N-donor ligands;Silver(I) complexes;NMR spectroscopy;X-ray crystallography.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Mr. Ramesh Chander
Date Deposited: 11 Aug 2009 08:23
Last Modified: 19 Sep 2010 04:57
URI: http://eprints.iisc.ac.in/id/eprint/17485

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