Oxoaryls of rhenium-(V) and -(VI) and osmium(VI). X-Ray crystal structures of dimesityldioxorhenium(VI), tetramesityloxorhenium(VI), and dimesityldioxoosmium(VI)
Oxoaryls of rhenium-(V) and -(VI) and osmium(VI). X-Ray crystal structures of dimesityldioxorhenium(VI), tetramesityloxorhenium(VI), and dimesityldioxoosmium(VI)
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铼-(V)和-(VI)以及锇(VI)的氧代芳基。
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
M. Hursthouse
中科院分区：
文献类型：
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作者：
P. Stravropoulos;P. G. Edwards;Torsten Behling;G. Wilkinson;M. Motevalli;M. Hursthouse
甲酰基溴化镁与[me3nhh][ReO4]或Re2O7相互作用，分离出反磁性的铼(V)配合物[(mes)2ReO2]2Mg(thf)2（mes =甲酰基，thf =四氢呋喃），可氧化成顺磁性化合物ReO2(mes)2；相反，ReOCl4在反应溶液氧化后产生顺磁性的铼(V)络合物ReO(mes)4和少量的ReO2(mes)2。三种含o-聚甲基溴化镁或o-甲氧基苯基溴化镁的铼起始材料，分别产生顺磁性配合物ReO(o-MeC6H4)4和ReO(o-MeOC6H4)4。利用四氧化锇与适当的格氏试剂相互作用的氧化溶液，制备了抗磁性化合物OsO2(mes)2。ReO2(mes)2、OsO2(mes)2和ReO(mes)4的x射线晶体结构分别为四面体、四面体和四方锥体。
The interaction of mesitylmagnesium bromide with [Me3NH][ReO4] or Re2O7 leads to the isolation of the diamagnetic rhenium(V) complex [(mes)2ReO2]2Mg(thf)2(mes = mesityl, thf = tetra-hydrofuran), which can be oxidized to the paramagnetic compound ReO2(mes)2; ReOCl4 gives, instead, the paramagnetic rhenium(V) complex ReO(mes)4 along with minor amounts of ReO2(mes)2, upon oxidation of the reaction solutions. All three rhenium starting materials with O-tolylmagnesium bromide or o-methoxyphenylmagnesium bromide lead similarly to the paramagnetic complexes ReO(o-MeC6H4)4 and ReO(o-MeOC6H4)4, respectively. The diamagnetic compound OsO2(mes)2 has also been prepared by oxidizing solutions from the interaction of osmium tetraoxide with the appropriate Grignard reagent. The X-ray crystal structures of ReO2(mes)2, OsO2(mes)2, and ReO(mes)4 have been determined to reveal tetrahedral, tetrahedral, and tetragonal pyramidal geometries respectively.