Synthesis of Ph<sub>3</sub>Sb(O<sub>2</sub>CR)<sub>2</sub> Compounds with Unsaturated Carboxylic Acids and Use of Triphenylantimony Dicrotonate for the Production of Sb-Containing Polymers

Abstract

The reaction of triphenylantimony with ROOH peroxides (R = t -Bu, H) and unsaturated carboxylic acids afforded triphenylantimony dicarboxylates Ph3Sb(O2CCH=CH2)2, Ph3Sb(O2CCMe=CH2)2, Ph3Sb(O2CCH=CHMe)2, Ph3Sb(O2CCH=CHPh)2, Ph3Sb(O2CCH=CHC6H4NO2-3)2, Ph3Sb(O2CCH=CHC4H3O)2, Ph3Sb(O2CCH=CH-C6H4OMe-4)2, Ph3Sb(O2CCH=CHCH=CHMe)2, Ph3Sb(O2CCH2CH=CH2)2, p -Tol3Sb(O2CCH=CHPh)2 with yields of 35-86%. The comparison of the obtained compounds structure using the structural parameter τ (from the X-ray diffraction data), as well as the difference in the values of νas(COO) and νs(COO) (from the IR data) was investigated. In all compounds, the coordination of the antimony atom occupies an intermediate position between the trigonal-bipyramidal and tetragonal-pyramidal. In all compounds, there is an additional coordination of the antimony atom on carbonyl oxygen atoms. Intermolecular interactions in acrylate, methacrylate, crotonate and triphenylantimony sorbate with the participation of C=C double bonds of unsaturated carboxylate fragments of neighboring molecules located on top of each other were revealed. Antimony-containing transparent polymers - polymethyl methacrylate and polystyrene, which may be of practical value for the creation of new composite materials, have been synthesized on the basis of triphenylantimony dicrotonate. The molecular mass characteristics of polymers, the absorption of X-rays, UV light by the obtained polymers were measured.