3223-05-0Relevant academic research and scientific papers
Synthesis and structure of tetra- and triphenylantimony organosulfonates
Sharutin,Sharutina,Pakusina,Platonova,Gerasimenko,Bukvetskii,Pushilin
, p. 13 - 22 (2008/10/09)
Tetraphenylantimony 2-naphthalenesulfonate (I), tetraphenylantimony phenylmethanesulfonate (II), and bis(tetraphenylantimony) sulfate (III) were synthesized via reaction of pentaphenylantimony with 2-naphthalenesulfonic acid, triphenylantimony bis(phenylmethanesulfonate), and triphenylantimony sulfate, respectively, in toluene. Triphenylantimony bis(phenylmethanesulfonate) (IV) was synthesized from triphenylstibine, phenylmethanesulfonic acid, and hydrogen peroxide (taken in the molar ratio of 1:2:1). Organoantimony betaine Ph 3S+bCH(Ph)SO2O (V) was obtained by reacting triphenylstibine with phenylmethanesulfonyl chloride in the presence of hydrogen peroxide. The structures of the compounds synthesized were determined using X-ray diffraction analysis. The Sb atoms in I-IV have distorted trigonal bipyramidal coordination. The Sb-C and Sb-O distances are equal to 2.100(4)-2.140(3) and 2.644(2) A in molecule I, 2.105(2)-2.131(2) and 2.699(1) A in II, 2.096(6)-2.169(6) and 2.101(6), 2.271(3) A in III, and 2.101(3)-2.102(5) and 2.111(2) A in IV. In V, the Sb atoms have close tetrahedral (2.105-2.115 A) and remote (2.65, 3.019 A) octahedral environment (the oxygen atoms of sulfo group of their own and neighboring molecules). Two betaine molecules are joined through the O atoms of the sulfo groups of bidentate phenylmethanesulfonate ligands to form a centrosymmetrical dimer. The intermolecular C(1)-H(1)...O(1) hydrogen bonds (3.10 A) are formed that strengthen the dimer.
Phenylation of Antimony(V) Organic Compounds with Pentaphenylantimony. The Structure of Tetraphenylantimony Chloride
Sharutin,Sharutina,Pakusina,Platonova,Zadachina,Gerasimenko
, p. 89 - 92 (2008/10/08)
Tetraphenylantimony chloride and bromide were synthesized through the reaction of pentaphenylantimony with diphenylantimony trichloride or tribromide taken at a molar ratio of 2:1 in toluene. When the initial compounds were taken at a molar ratio of 1:1, triphenylantimony dichloride or dibromide was formed. The phenylation of triphenylantimony sulfate with pentaphenylantimony yielded tetraphenylantimony sulfate. According to the X-ray diffraction data, the antimony atom in the tetraphenylantimony chloride molecule has a distorted trigonal bipyramidal configuration with the chlorine atom in the axial position. The Sb-Cl distance is equal to 2.686(1) and Sb-C distances are equal to 2.113(4) and 2.165(4) A (av. 2.130 A).
