Synthesis and decomposition of bis(triphenylstannyl)magnesium

The nature of the halogen is found to affect the yield of bis(triphenylstan nyl)magnesium in the reaction of halotriphenylstannane with metallic magnes ium in tetrahydrofuran. A probable scheme is proposed of the decomposition of bis(triphenylstannyl)magnesium in tetrahydrofuran in the presence of met allic magnesium and magnesium chloride. The formal kinetical and activation parameters of the conversion of the organodimetallic compound were determi ned. Metallic magnesium is shown to cleave the Sn-Sn bond in hexaphenyldist annane.