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Intramolecularly coordinated organotin(IV) sulphides and their reactivity to iodine |
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| Authors: | Libor Dostál Roman Jambor Robert Jirásko Jaroslav Hole?ek |
| Institution: | a Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, nám. ?s. Legií 565, CZ - 532 10, Pardubice, Czech Republic b Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, nám. ?s. Legií 565, CZ - 532 10, Pardubice, Czech Republic c Department of Inorganic Chemistry, Faculty of Science, Masaryk University of Brno, Kotlá?ská 2, CZ - 611 37, Brno, Czech Republic |
| Abstract: | Organotin(IV) sulphides (LSnPhS)2 (3) and (LSnPh2)2S (4) containing O,C,O chelating ligand (L = 2,6-(t BuOCH2)2C6H3−) were prepared by the reaction of parent organotin chlorides LSnPhCl2 (1) and LSnPh2Cl (2) with Na2S · 9H2O in toluene/water. Both sulphides were characterized by the help of elemental analysis, ESI-mass spectrometry, 1H, 13C 119Sn NMR spectroscopy and the molecular structure of 3 was determined by X-ray diffraction techniques. Compounds 3 and 4 react with I2 to organotin iodides LSnPhI2 (5) and LSnPh2I (6), instead of intended iodolysis of phenyl groups. Triorganotin iodide 6 reacts with the additional molecule of I2 forming an ionic organotin compound LSnPh2]+ I3− (7), which is unstable in solution and decomposes to Ph2SnI2 and 2,6-(tBuOCH2)2C6H3I (8). |
| Keywords: | Tin Sulphide Chelating ligand NMR spectroscopy X-ray structure |
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