Structural Features of Triorganylantimony Dicarboxylates R3Sb[OC(O)R′)]2 |
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| Authors: | Sharutin V V Sharutina O K Pakusina A P Platonova T P Smirnova S V Pushilin M A Gerasimenko A V |
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| Institution: | (1) Blagoveshchensk State Pedagogical University, ul. Lenina 104, Blagoveshchensk, 675000, Russia;(2) Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 109, Vladivostok, 690022, Russia |
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| Abstract: | Triphenylantimony dibenzoate Ph3Sb(O2CPh)2, triphenylantimony bis(methylbenzoates) Ph3Sb(O2CC6H4Me-n)2 (n = 2, 4), and tri-p-tolylantimony bis(trichloacetate) p-Tol3Sb(O2CCCl3)2, whose Sb atoms have trigonal bipyramidal coordination, were studied using X-ray diffraction analysis. The Sb–O bond lengths are equal to 2.119(2) and 2.144(2); 2.115(2); 2.118(2) and 2.127(2); 2.133(2) Å, the Sb···O(=C) intramolecular contacts are equal to 2.797(2) and 2.698(2); 2.845(2); 2.814(2) and 3.030(2); 3.119(2) Å, respectively. The following correlation was found in the structures of triorganylantimony dicarboxylates: the shorter the Sb···O(=C) distances, the greater the equatorial angle on the side of the intramolecular contacts. |
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