Abstract
The complex [Re(ddcat)3] (H2ddcat = 3,5-di-tert-butylcatechol) was prepared by the reaction of either cis-[ReVO2I(PPh3)2] or (n-Bu4N)[ReVOCl4] with H2ddcat in toluene in air. X-ray structure determination of the product unequivocally illustrates that the bidentate chelates are in the catecholato rather than the semiquinone form and that the metal has a formal oxidation state of +VI.