Liquid hydrogen chloride as an ionizing solvent. Part XI. Protonation and oxidation reactions of pentacarbonyliron

Abstract

This paper describes the reactions of pentacarbonyliron in liquid hydrogen chloride with the halogens, nitrosyl chloride, boron trichloride, and phosphorus pentafluoride. Salts of the new cationic species, Fe(CO)₅H⁺, Fe(CO)₅Cl⁺, Fe(CO)₅Br⁺, and Fe(CO)₅NO⁺ were prepared and isolated. The structure of these cations is discussed in terms of their infrared and ultraviolet absorption spectra and magnetic properties.