Synthesis and structure of tetraphenylantimony 2-hydroxy-4-tetraphenylstiboxybenzoate

By interaction between pentaphenylantimony and 2,4-dyhydroxybenzoic acid in toluene tetraphenylantimony 2-hydroxy-4-tetraphenylstiboxybenzoate was obtained. According to X-ray analysis the atoms of antimony have a distorted trigonal bypiramidal coordination. The axial angles CSb(1,2)O equal 169.28(16)° and 166.45(15)°, equatorial angles CSb(1,2)C range within 116.6(3)°-120.1(3)° and 117.6(3)°-120.5(3)°. The bond lengths Sb(1,2)-O and Sb(1,2)-Cax equal 2.245(3), 2.254(3) Å and 2.150(7), 2.193(5) Å, respectively.