The coordination chemistry of unsymmetric N-capped tripodal NO3 ligands with iron(III), oxo-vanadium(V) and dioxo-molybdenum(VI) metal centres
作者:Lok H. Tong、Yee-Lok Wong、Hung Kay Lee、Jonathan R. Dilworth
DOI:10.1016/j.ica.2011.10.054
日期:2012.3
in THF, while 3 was obtained in a similar manner by treating [MoO2(acac)2] (acac = acetylacetonate) with the same proligand and potassium hydroxide in methanol. The X-ray crystal structure of 1 illustrates a dimeric structure with a bis-(μ-phenoxo) Fe2O2 diamond core, and each iron centre bears a rare NO4 coordination sphere. The preparation of a previously unknown, fully unsymmetric N-capped tripodal
铁(III)[Fe(L 1)] 2(1),氧钒(V)[VO(L 1)](2)和二氧钼(VI)K [MoO 2(L )的合成和表征1)](3)报道了由部分不对称的N-封端的三脚架NO 3配体(L 1)支撑的络合物。配合物1和2是通过配体[H 3 L 1 ]与它们相应的金属前体(FeCl 3和VOCl 3分别在三乙胺的THF中存在,而3则通过在甲醇中用相同的配体和氢氧化钾处理[MoO 2(acac)2 ](acac =乙酰丙酮酸酯)以类似的方式获得。的X射线晶体结构1示出了具有一个二聚结构的双- (μ -phenoxo)的Fe 2 ö 2金刚石核心,并且每个铁中心带有一个罕见NO 4配位球。先前未知的,完全不对称的N封端的三脚架NO 3配体[H 3 L 2还描述了以三个不同的酚类臂为特征的化合物。[H 3 L 2 ]与VOCl 3的反应产生了氧-钒(V)络合物[VO(L 2)](4)。配合物2