Dioxomolybdenum(VI) and dioxotungsten(VI) complexes of isomeric ONO donor ligands and the X-ray crystal structure of [MoO2(o-OC6H4CHNCH2C6H4O)(MeOH)]2·MeOH
作者： Mannar R. Maurya , Mathuresh N. Jayaswal , Vedavati G. Puranik , P. Chakrabarti , Sarada Gopinathan
DOI: 10.1016/S0277-5387(97)00187-3
关键词: Crystal structure 、 Decomposition 、 Octahedral molecular geometry 、 Molybdenum 、 Salicylaldehyde 、 Crystallography 、 Stereochemistry 、 Tungsten 、 Zonal and meridional 、 Ligand 、 Chemistry
摘要: Abstract Dioxomolybdenum(VI) and dioxotungsten(VI) complexes of two isomeric Schiff bases derived from salicylaldehyde, 2-hydroxy-1-naphthaldehyde o-hydroxybenzylamine or o-aminobenzylalcohol have been prepared characterized.1H NMR spectral data confirm the formation [MO2L] (M = Mo W, LH2 ligand) types except complex dioxomolybdenum(VI) with ligand salicylaldehyde-o-hydroxybenzylamine (H2sal-OHYBA) which forms [MoO2(sal-OHYBA)·CH3OH]. An X-ray study [MoO2(sal-OHYBA)·CH3OH] shows presence distorted octahedral geometry around molybdenum in tridentate occupies meridional position where anionic oxygens are mutuallytrans arecis to thecis dioxo group. Generally tungsten is more stable decomposition than one within same ligand.
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