Reversible Hydrogen Activation by the Pt Complex Pt(Sn^<i>t</i>Bu₃)₂(CN^<i>t</i>Bu)₂

Abstract

The new platinum complex Pt(SntBu3)2(CNtBu)2(H)2, 1, was obtained in 32% yield from the reaction of Pt(COD)2 with tBu3SnH and CNtBu at room temperature. Compound 1 is a mononuclear 18 electron platinum complex in an octahedral geometry which contains two SntBu3's, two CNtBu's, and two hydride ligands. The two hydride ligands in 1 can be eliminated, both in solution and in the solid state, to yield the 16 electron complex Pt(SntBu3)2(CNtBu)2, 2. Compound 2 reacts with hydrogen at room temperature in solution and in the solid state to regenerate 1