Synthesis, characterization, and some ligand-redistribution reactions of the mercuric complexes [Re7C(CO)21HgY]2-

Abstract

The cluster anion [Re 7 C(CO) 21 ] 3− reacts with various mercuric compounds to yield a set of clusters [Re 7 C(CO) 21 )HgY] 2− (Y=halide, pseudohalide, or hydrocarbyl) that have been isolated as crystalline [PPN] + salts and characterized by IR, mass, and 1 H NMR spectroscopies as well as by cyclic voltammetry. 13 C NMR studies of selected clusters indicate that these compounds adopt a (1,4)-bicapped octahedral geometry in solution