Tetra- and triarylantimony pentafluoro- and pentachlorophenoxides: Synthesis and structure

摘要

2,3,4,5,6-Pentafluorophenoxytetraphenylantimony (I), 2,3,4,5,6-pentachlorophenoxytetraphenylantimony ((II)), 2,3,4,5,6-pentafluorophenoxytetra-p-tolylantimony (III), and 2,3,4,5,6-pentachlorophenoxytetra-p-tolylantimony (IV) were synthesized by the reaction of pentaarylantimony (Ar = Ph, p-Tol) with pentafluoro- and pentachlorophenol in toluene. Compounds I-IV were also synthesized with yields of up to 95% from pentaarylantimony and triarylantimony diaroxides. Triarylantimony diaroxides Ph3Sb(OC6F5)(2) (V), Ph3Sb(OC6Cl5)(2) (VI), p-Tol(3)Sb(OC6F5)(2) (VII), p-Tol(3)Sb(OC6Cl5)(2) (VIII) were synthesized from triarylantimony, tert-butylhydroperoxide, and phenol in ether. The Sb atoms in compounds I-VIII had a distorted trigonal bipyramidal coordination with electronegative ligands in axial positions.