Aqueous Organometallic Chemistry of mer-Ir(H)2(PMe3)3X Complexes
摘要:
A series of Ir(H)(2)(PMe3)(3)X compounds where X = various anionic ligancls has been synthesized. The most studied of this group with X = Cl has been characterized fully, including by X-ray crystallography. For X = Cl, PhCO2-, dissolution in water results in the establishment of the equilibrium Ir(H)(2)(PMe3)(3)X + H2O = [Ir(H)(2)(PMe3)(3)(H2O)]X-+(-), which is responsible for the reaction of these compounds with unsaturated organic compounds. Reactions between the dihydrides and alkynes in water as well as the thermodynamics of the aqueous equilibrium are discussed.