Preparation and characterization of tetrakis(tricarbonyldifluororuthenium), tricarbonyltrifluororuthenium, and bis(tricarbonyldifluororuthenium–ruthenium pentafluoride)

Abstract

The ruthenium carbonyl fluorides, [{Ru(CO)₃F₂}₄], [Ru(CO)₃F₃], and [{Ru(CO)₃F₂·RuF₅}₂] have been prepared in high yield. I.r. spectroscopy, magnetic susceptibility, and e.s.r. spectroscopy have shown that [Ru(CO)₃F₃] is monomeric but that the structure of [{Ru(CO)₃F₂·RuF₅}₂] is closely related to that of [{Ru(CO)₃F₂}₄] and (RuF₅)₄, which have been previously characterized by single-crystal X-ray diffraction as fluorine-bridged tetramers.