Oxidative addition reaction of o-quinones to triphenylantimony: novel triphenylantimony catecholate complexes

New catecholate complexes triphenyl(3,6-di-tert-butylcatecholato)antimony(V), triphenyl(perchloroxanthrenecatecholato)antimony(V), 4-(2-methyl-5-tert-butyl-cyclohexadien-1,5-dion-3,4-yl)-(3-methyl-6-tert-butyl-catecholato)triphenylantimony(V) and 4,4'-di-[(3-methyl-6-tert-butyl-catecholato)triphenylantimony(V)] were prepared by the oxidative addition reaction and characterized. Their molecular structures were determined by X-ray crystallography to be a distorted tetragonal-pyramidal.