Synthesis, characterization, reactivity and catalytic activity of dioxidomolybdenum(VI) complexes derived from tribasic ONS donor ligands
作者:Mannar R. Maurya、Sarita Dhaka、Fernando Avecilla
DOI:10.1016/j.poly.2014.05.068
日期:2014.10
Abstract The reaction of three Schiff bases, H3dfmp(sbdt)2 (I), H3dfmp(smdt)2 (II) and H3dfmp(tsc)2 (III) [derived from the condensation of 2,6-diformyl-4-methylphenol (dfmp) with S-benzyldithiocarbazate (sbdt), S-methyldithiocarbazate (smdt) and thiosemicarbazide (tsc)], with [MoVIO2(acac)2] (Hacac = acetylacetone) on stirring in methanol results in the formation of the dioxidomolybdenum(VI) complexes
摘要三种席夫碱的反应,是由2,6-二甲酰基-4-甲基苯酚的缩合反应衍生而来的,H3dfmp(sbdt)2(I),H3dfmp(smdt)2(II)和H3dfmp(tsc)2(III) dfmp)与S-苄基二硫代氨基甲酸酯(sbdt),S-甲基二硫代氨基甲酸酯(smdt)和硫代氨基脲(tsc)],与[MoVIO2(acac)2](Hacac =乙酰丙酮)在甲醇中搅拌导致形成二氧化钼(VI)复合物[MoVIO2 Hdfmp(sbdt)2}(H2O)](1),[MoVIO2 Hdfmp(smdt)2}(H2O)](2)和[MoVIO2 Hdfmp(tsc)2}(H2O)](3 ), 分别。所有这些配合物均已通过元素分析,光谱技术(IR,电子,1H和13C NMR)和热重分析在固态和溶液中进行了表征。通过单晶X射线研究证实的配合物1、2和3的结构表明,只有一组甲亚胺氮,配体的硫醇盐硫原子和酚