Abstract
A new neutral rhenium(V)–oxo complex with tridentate Schiff base (SNO-CH 3), derived from the condensation of 2-hydroxyacetophenone with dithiocarbazic acid methyl ester (H 2N–NH–C(S)SCH 3) was prepared by a substitution reaction on the square pyramidal ionic complex [ReOCl 4][NBu 4]. Reacting the rhenium complex [Re VO(SNO-CH 3)Cl] 1 with lithium iodide (LiI) allows the formation of the iodo homologous rhenium(V)–oxo complex [Re VO(SNO-CH 3)I] 2. Compounds 1 and 2 were characterized by elemental analysis, IR, NMR spectra and mass spectrometry (FAB). The structure of [ReO(SNO-CH 3)I] 2 was determined by single X-ray diffraction methods. The coordination around rhenium is distorted square pyramidal with an apical double bonded oxo atom [ReO: 1.660 Å] and the basal ligands bend away from the oxo group.
Published Version
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