A new diphenylantimony oxide containing a planar Sb6O6 ring
Abstract
Treatment of diphenylantimony bromide oxide, (Ph2SbBrO)2, with silver oxalate leads to a novel ionic product, containing a planar twelve-membered cyclic antimony–oxygen dication in which two pairs of adjacent antimony atoms are further linked by hydroxy bridges to give Sb2O2 rings and a quadridentate oxalate is coordinated between the two remaining antimony atoms of the ring; the counter ions are two cis-dioxalatodiphenylantimony anions.