603-36-1Relevant articles and documents
Razuvaev, G. A.,Osanova, N. A.
, p. 77 - 82 (1972)
Thermochemistry of Sulfur Atom Transfer. Enthalpies of Reaction of Phosphines with Sulfur, Selenium, and Tellurium, and of Desulfurization of Triphenylarsenic Sulfide, Triphenylantimony Sulfide, and Benzyl Trisulfide
Capps, Kenneth B.,Wixmerten, Bodo,Bauer, Andreas,Hoff, Carl D.
, p. 2861 - 2864 (1998)
The enthalpies of reaction of neat PBu3 with solid sulfur (-27.1 ± 0.5 kcal/mol), selenium (-20.0 ± 0.6 kcal/ mol), and tellurium (-4.9 ± 0.6 kcal/mol) have been measured by solution calorimetry. The enthalpies of reaction of a series of phosphines with sulfur in toluene solution have been measured as follows (values in kcal/mol): PCy3 = -30.9 ± 1.9, PBu3 = -28.9 ± 0.3, PMe3 = -27.1 ± 0.4, PMe2Ph = -26.0 ± 0.5, PMePh2 = -23.8 ± 0.3. PPh3 = -21.5 ± 0.3. These values correlate with literature data for enthalpies of protonation and indicate that P to S σ donation is probably the dominant factor in determining the R3P=S bond strength, estimates for which range from 88 to 98 kcal/mol. The enthalpies of S atom transfer to PPh3 by S=AsPPh3 and S=SbPh3 in toluene solution are -17.7 ± 1.2 and -21.5 ± 1.0 kcal/mol, respectively. The enthalpy of removal of the central S atom from BzSSSBz by PCy3, yielding BzSSBz and S=PCy3, is -29.0 ± 1.8 kcal/mol. These data are used to establish a range of enthalpies of S atom transfer in these compounds which spans 31 kcal/mol from S=SbPPh3 to S=PCy3.
Synthesis method of triphenyl antimony
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Paragraph 0061-0068; 0104-0109, (2018/11/03)
The invention discloses a synthesis method of triphenyl antimony, which comprises the following steps: adding higher fatty acid or higher fatty acid salt and adding sodium to organic solvent under theprotection of an inert gas, performing refluxing reaction and cooling to room temperature; slowly adding halogenated benzene into the obtained solution, then slowly dripping halogenated benzene solution of antimonous chloride, reaction under stirring, filtering the obtained reaction solution, evaporating organic solvent and halogenated benzene in the obtained filtrate under normal pressure to obtain a crude triphenyl antimony product; dissolving the crude product with petroleum ether, filtrating, concentrating the obtained filtrate and then freezing for crystallization to obtain triphenyl antimony. Triphenyl antimony is synthesized by the method disclosed by the invention, the utilization rate of raw materials is high, the use of high-pollution catalysts is avoided, the discharge of threewastes is reduced, production cost is reduced, the industrial application value is high, and the product has high purity and high yield.
Establishing the coordination chemistry of antimony(v) Cations: Systematic assessment of Ph4Sb(OTf) and Ph3Sb(OTf)2 as Lewis acceptors
Robertson, Alasdair P. M.,Chitnis, Saurabh S.,Jenkins, Hilary A.,McDonald, Robert,Ferguson, Michael J.,Burford, Neil
, p. 7902 - 7913 (2015/05/20)
The coordination chemistry of the stiboranes Ph4Sb(OTf) (1 a, OTf = OSO2CF3) and Ph3Sb(OTf)2 (3) with Lewis bases has been investigated. The significant steric encumbrance of the Sb center in 1 a precludes interaction with most ligands, but the relatively low steric demands of 4-methylpyridine-N-oxide (OPyrMe) and OPMe3 enabled the characterization of [Ph4Sb(OPyrMe)][OTf] (2 a) and [Ph4Sb(OPMe3)][OTf] (2 b), rare examples of structurally characterized complexes of stibonium acceptors. In contrast, 3 was found to engage a variety of Lewis bases, forming stable isolable complexes of the form [Ph3Sb(donor)2][OTf]2 [donor=OPMe3 (6 a), OPCy3 (6 b, Cy=cyclohexyl), OPPh3 (6 c), OPyrMe (6 d)], [Ph3Sb(dmap)2(OTf)][OTf] (6 e, dmap=4-(dimethylamino)pyridine) and [Ph3Sb(donor)(OTf)][OTf] [donor=1,10-phenanthroline (7 a) or 2,2′-bipy (7 b, bipy=bipyridine)]. These compounds exhibit significant structural diversity in the solid-state, and undergo ligand exchange reactions in line with their assignment as coordination complexes. Compound 3 did not form stable complexes with phosphine donors, with reactions instead leading to redox processes yielding SbPh3 and products of phosphine oxidation.