79047-38-4Relevant academic research and scientific papers
Axial ligand substitution reactions of ruthenium(II) dimethylglyoxime complexes
Khalifa, Mohamed A.,El-Awady, Abbas A.
, p. 774 - 778 (2007/10/02)
Kinetics of ligand substitution reactions of six-coordinated Ru(II) macrocyclil complexes of the following type have been investigated: (T)Ru(DMGH)2(L) + X -> (T)Ru(DMGH)2(X) + L where T and L are either both triphenylphosphine ligands or methylimidazole and triphenylphosphine ligands, respectively.The nucleophile X is either MeIm, Im, py, pip, P(OBu)3 or Timc.In all cases, with the exception of Timic as a nucleophile, the reaction mechanism is strictly dissociative (D).The reaction proceeds through the formation of a five-coordinate intermediate which possess little or no ability to discriminate between different nucleophiles.In the case of Tmic, the rate data can be fitted by a dissociative Id or a Associative Ia interchange mechanism.
