A. Kundu et Bp. Buffin, Aqueous organometallic chemistry with nitrogen ligands: Synthesis of hydrophilic platinum(0) olefin complexes, ORGANOMETAL, 20(17), 2001, pp. 3635-3637
Reactions of hydrophilic unsymmetrical pyridine-imine chelating ligands wit
h pt(eta (2)-norbornene)(3) in the presence of olefins that contain electro
n-withdrawing substituents afford water-soluble three-coordinate Pt-(0) com
plexes. The stability of these organometallic complexes in aqueous solution
is dependent on the position of the hydrophilic charged substituents in th
e chelating ligand and the electronic nature of the coordinated olefin.