Chemistry of Mesitylgallium(III) Derivatives as Arene Ligands in Metal Carbonyl Complexes. Crystal and Molecular Structures of ((CO)3Mo(Eta 6-C6Me3H2))Ga(C6Me3H2)2 and ((CO)3Mo(Eta 6-C6Me3H2))2Ga(C6Me3H2)

摘要

The first examples of arene group 6 metal tricarbonyl complexes which have gallium containing substituents bonded to an arene ring, (CO)3MoMesGaMes2, (CO)3MoMes2GaMes, (CO)3MoMesGaC12.1/2 DME and (CO)3MoMes2GaC1.1/2 DME (Mes = C6Me3H2 = mesityl) have been prepared and characterized by elemental analyses, IR and 1H NMR spectroscopy and reactions with hydrogen chloride. X ray structural studies have been defined the nature of (CO)3MoMesGaMes2 and (CO)3MoMes2GaMes in the solid state. Both complexes can be described as GaMes3 molecules with either one or two Mo(CO)3 units bonded in eta fashion to mesityl rings. The yellow crystal of (CO)3MoMesGaMes2 which cocrystallized with a benzene solvent molecule consisted of discrete molecules with no abnormally close intermolecular interactions. Keywords: Gallium chemistry, Aryl molybdenum compounds, Mesitylgallium compounds, X Ray structural studies. (mjm)