The Mechanism of [IrCl6]2− Complex Transformation in Acetone Solutions Studied by EPR and UV–Vis Spectroscopy

The substitution reaction of Cl− ion in the complex [IrCl6]2− with the acetone molecule was investigated in detail by CW X-band EPR and UV–Vis spectroscopy methods. An original software package for deconvolution of a series of EPR or optical spectra has been developed. Based on the all-data analysis, the most probable mechanism of the process under study is proposed, including four reactions (two reversible ones). One of the stages is the redox reactions between iridium(IV) and iridium(III). © 2025 John Wiley & Sons Ltd.