A Multinuclear Magnetic Resonance Study of Transformations of Ruthenium(II) Nitrosyl Chloride Complexes in Aqueous Solutions

摘要

Aqueous solutions of ruthenium nitrosyl chloride complexes have been studied by ~(14)N, ~(15)N, ~(17)O, ~(99)Ru, and ~(35)ClNMR. Individual complex species have been identified and the corresponding chemical shifts have been determined. The primary aquation product of the pentachloronitrosylruthenate ion is the cis-[RuNO(H_2O)Cl_4]~- complex, which subsequently undergoes isomerization. The equilibrium constants of interconversions of ruthenium nitrosyl chloride complexes in an aqueous solution at room temperature have been estimated.