110781-72-1Relevant academic research and scientific papers
Oxoaryls of Rhenium-(V) and -(VI) and Osmium(VI). X-Ray Crystal Structures of Dimesityldioxorhenium(VI), Tetramesityloxorhenium(VI), and Dimesityldioxoosmium(VI)
Stravropoulos, Pericles,Edwards, Peter G.,Behling, Torsten,Wilkinson, Geoffrey,Motevalli, Majid,Hursthouse, Michael B.
, p. 169 - 176 (2007/10/02)
The interaction of mesitylmagnesium bromide with or Re2O7 leads to the isolation of the diamagnetic rhenium(V) complex 2Mg(thf)2 (mes = mesityl, thf = tetrahydrofuran), 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.
