127948-08-7Relevant academic research and scientific papers
Reactions of Pentaarylantimony with Triarylantimony Diacylates
Sharutin,Sharutina,Pakusina,Bel'skii
, p. 1443 - 1448 (2007/10/03)
Tetraarylantimony acylates were obtained from pentaarylantimony and triarylantimony diacylates in 87-98% yields. According to X-ray diffraction data, triphenylantimony dicynnamate Ph3Sb[OC(O)CH= CHPh]2, tetra-p-tolyl monophthalate (p-CH3C6H4)4SbOC(O)C 6H4COOH-o, and tetraphenylantimony salicylate Ph4SbOC(O)C6H4OH-o are trigonal-bipyramidal antimony complexes having axial carboxylic moieties. In the first and third compounds, antimony is coordinated at the esteric carbonyl oxygen, and in the second and third compounds, the carbonyl oxygen enters intramolecular H bonding with the hydrogen atoms of the free carboxy (hydroxy) groups.
Synthesis and thermal decomposition of derivatives of acyloxytetraphenylantimony
Sharutina,Sharutin,Senchurin,Fukin,Zakharov,Yanovsky,Struchkov
, p. 186 - 190 (2007/10/03)
Acyloxy derivatives of tetraphenylantimony of the general formula Ph4SbOC(O)R (R = Alk or Ar) have been synthesized by the reaction of pentaphenylantimony with carboxylic acids. Thermolysis of the compounds obtained affords phenyl carboxylates and triphenylstibine in quantitative yields. One of these compounds (R = CH=CHPh) has been studied by X-ray structural analysis. In this compound, the Sb atom has a trigonal-bipyramidal coordination. The Sb-O(Ph)eq distances are in the range 2.103(4)-2.140(5) A; the Sb-C(Ph)ax bond length is 2.167(5) A. The fragment of the residue of cinnamic acid has a delocalized double bond in the carboxylate group.
