The liquid hydrogen chloride solvent system. Part XV. Reactions of the tetrakis[carbonyl(π-cyclopentadienyl)iron(I)] complex

Abstract

The complex tetrakis[carbonyl(π-cyclopentadienyl)iron(I)], [(cp)Fe(CO)]₄, reacts with boron trichloride in liquid hydrogen chloride to give the {[(cp)Fe(CO)]₄H₂}²⁺ ion (cp =π-cyclopentadienyl); reaction with phosphorus pentafluoride in hydrogen chloride gives the [(cp)Fe(CO)]₄⁺ ion. An improved procedure for the preparation of the complex [(cp)Fe(CO)]₄ is also reported.