Synthesis of metallacycles by oxidative addition of Sn-S, Sn-Se, Sn-Te, and Ge-Te containing precursors to platinum(II)

The first known metallacycles known have been synthesized through the oxidative addition of tin-sulfur, tin-selenium, tin-tellurium and germanium-tellurium bonds to platinum(II). The syntheses were carried out under a nitrogen atmosphere using standard Schlenk procedures. Their physical properties were then studied through 1H, 119Sn and 195Pt nuclear magnetic resonance spectroscopy. These complexes have catalytic properties and undergo unique distribution reactions. The order of reactivity of the group 14-group 16 bonds is Sn-Te, Ge-Te >> Sn-Se > Sn-S although the Ge-Se and Ge-S bonds were inert.