Modification of σ‐Donor Properties of Terminal Carbide Ligands Investigated Through Carbide–Iodine Adduct Formation

Abstract

The terminal carbide ligands in [(Cy 3 P) 2 X 2 Ru C] complexes (X = halide or pseudohalide) coordinate molecular iodine,affording charge-transfer complexes rather than oxidation products.C rystallographic and vibrational spectroscopic data show the perturbations of iodine to vary with the auxiliary ligand sphere on ruthenium, demonstrating the s-donor properties of carbide complexes to be tunable.Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under http://dx.