Multiple bonds between main group elements and transition metals: LXIX. Condensation reactions of methyltrioxorhenim with 8-hydroxyquinoline and 2-hydroxyaniline: new rhenium(VII) chelate complexes

Abstract

The title compound methyltrioxorhenium, (CH 3ReO 3, 1), reacts with 8-hydroxyquinoline at room temperature to give the dinuclear Re VII complex [CH 3Re(O) 2(8-oxyquinoline)] 2O ( 2) in 90% yield. A single crystal X-ray diffraction study has shown that 2 has a dimeric octahedral structure with a total of four terminal oxo ligands and one bridging oxygen atom. By contrast, the more complex condensation reaction of 1 with 2-hydroxyaniline gives the mononuclear Re VII compound CH 3Re(O)(2-OC 6H 4NH) 2 ( 3) in 60% yield.