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.