First crystallographic investigation of complexes of cis-VO2+, cis-MoO22+, and trans-UO22+ species with Schiff-base molecules derived from 4,6-O-ethylidene-β-D-glucopyranosylamine

Sah, Ajay K. ; Rao, Chebrolu P. ; Saarenketo, Pauli K. ; Wegelius, Elina K. ; Kolehmainen, Erkki ; Rissanen, Kari (2001) First crystallographic investigation of complexes of cis-VO2+, cis-MoO22+, and trans-UO22+ species with Schiff-base molecules derived from 4,6-O-ethylidene-β-D-glucopyranosylamine European Journal of Inorganic Chemistry, 2001 (11). pp. 2773-2781. ISSN 1434-1948

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/1099-06...

Related URL: http://dx.doi.org/10.1002/1099-0682(200111)2001:11<2773::AID-EJIC2773>3.0.CO;2-T

Abstract

The interaction of Schiff-base ligands derived from 4,6-O-ethylidene-β-D-glucopyranosylamine with cis-VO2+, cis-MoO22+, and trans-UO22+ species have been studied by isolating and characterizing the corresponding products. The structures of one complex of each type of species have been established by single-crystal X-ray diffraction analysis. In all the complexes, the saccharide moiety adopts a chair conformation and has a β-anomeric form. A gradual increase in coordination number (5, 6, and 7) and a gradual variation in the geometry (distorted trigonal-bipyramidal, distorted octahedral, and pentagonal-bipyramidal) are observed on going from the complexes of cis-VO2+ (mononuclear) to cis-MoO22+ (mononuclear) to trans-UO22+ (dinuclear). A variation in the binding mode of the ligand towards these dioxometal species is also observed. Intermolecular interactions of the type O-H···O, C-H···O, and N-H···O present in the lattices of these complexes lead to the formation of interesting structures.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons.
Keywords:Vanadium; Molybdenum; Uranium; Schiff Bases; Structure Elucidation
ID Code:79183
Deposited On:24 Jan 2012 15:22
Last Modified:19 Apr 2012 05:59

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