Synthesis and characterization of [n,n′-ethylenebis(3-ethoxysalicylideneaminato)] oxovanadium(iv)

Thesynthesis, spectra and X-ray crystal structure of [V IV)(3-EtOsalen)][where 3-EtOsalen is the Schiff base N,N'-ethylenebis(3-ethoxysalicylideneaminate)] are reported. The Gaussian analysis of the visible spectrum of the complex in acetonitrile yielded four peaks, at 12,570, 15,190, 17,010 an...

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Bibliographic Details
Published in:Polyhedron 1995-08, Vol.14 (17), p.2411-2418
Main Authors: Zamian, J.R., Dockal, E.R., Castellano, G., Oliva, G.
Format: Article
Language:English
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Summary:Thesynthesis, spectra and X-ray crystal structure of [V IV)(3-EtOsalen)][where 3-EtOsalen is the Schiff base N,N'-ethylenebis(3-ethoxysalicylideneaminate)] are reported. The Gaussian analysis of the visible spectrum of the complex in acetonitrile yielded four peaks, at 12,570, 15,190, 17,010 and 20,710 cm −1, assigned as the four d-d transitions. In the IR spectra of three samples synthesized in different solvents, two sharp bands appeared at 3524 and 3577 cm −1. These are assigned as O-H stretching frequencies of the water of crystallization strongly hydrogen bonded to two independent pairs of ligand oxygen atoms. The molecule adopts the square-pyramidal geometry characteristic of oxovanadium(IV) chelates.
ISSN:0277-5387
DOI:10.1016/0277-5387(95)00071-Y