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Unexpected product formed by the reaction of [2,6-(MeOCH2)2C6H3]Li with SbCl3: Structure of Sb-O intramolecularly coordinated organoantimony cation |
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| Authors: | Libor Dostá l,Roman Jambor,Ludví k Bene&scaron ,Robert Jirá sko |
| Affiliation: | 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 Charles University in Prague, Faculty of Natural Science, Hlavova 2030, CZ 128 40, Prague 2, Czech Republic c Joint Laboratory of Solid State Chemistry of the Institute of Macromolecular Chemistry of Academy of Sciences, University of Pardubice, Studentská 84, CZ 532 10 Pardubice, Czech Republic d Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, nám. ?s. legií 565, CZ - 532 10, Pardubice, Czech Republic |
| Abstract: | Reaction of [2,6-(MeOCH2)2C6H3]Li (1) with SbCl3 in 1:1 molar ratio yielded except the intended product [2,6-(MeOCH2)2C6H3]SbCl2 (2) unexpected complex 3 consisting of antimony anion [Sb6Cl22]4− compensated by four intramolecularly coordinated organoantimony cations [2,6-(MeOCH2)2C6H3]2Sb+. Compound 3 is labile in CH2Cl2(CHCl3) solution and decomposes to compound 2 and SbCl3. Both compounds were characterized by the help of 1H and 13C NMR spectroscopy, ESI-mass spectrometry and in the case of 3 by single crystal X-ray diffraction techniques. |
| Keywords: | Antimony Pincer ligand Hypervalent compounds Chloroantimonates |
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