1135616-99-7Relevant academic research and scientific papers
Synthesis, structure, and reactivity of intramolecularly coordinated organoantimony and organobismuth sulfides
Marie Chovancova,Roman Jambor,Ruzicka, Ales,Jirasko, Robert,Cisarova, Ivana,Dostal, Libor
, p. 1934 - 1941 (2009)
Organoantimony(III) and organobismuth(III) sulfides, containing O,C,O-chelating ligands (L1-3 = 2,6- (ROCH2) 2C6H3-, where R = Me (L1), t-Bu (L2), or mesityl (L3)), [L1-3MS]2, where M = Sb (LM1 (5), L2 (6), L3 (7)) or M = Bi (L2 (8)), were prepared by the reaction of parent organoantimony and organobismuth chlorides with Na2S ? 9H2O in toluene/water. All sulfides 5-8 were characterized by elemental analysis, electrospray ionization mass spectrometry, 1H and 13C NMR spectroscopy, and X-ray diffraction techniques. Organoantimony sulfides 5-7 are stable both in solution and in the solid state in contrast to the organobismuth congener, which is stable at -30 °C but decomposes at ambient temperature. While the reaction of 5 and 7 with I2 yielded the expected organoantimony iodides L1,3Sbl2 (L1 (9), L 3 (10)), compound 6 containing ligand L3 gives the unexpected oxastibol 12 besides the intended diiodide L2SbI 2 (11). The molecular structure of 12 in the solid state was determined by X-ray diffraction techniques and showed formation of an Sb-O covalent bond as a result of C-O ether bond cleavage.
