Reactions of tantalum pentachloride with sulfur dioxide in benzene and tert-butylbenzene

Authors
Ovchinnikova, NA Sakharov, SG Butskii, VD Glushkova, MA Kokunov, YV
Citation
Na. Ovchinnikova et al., Reactions of tantalum pentachloride with sulfur dioxide in benzene and tert-butylbenzene, RUSS J C CH, 25(1), 1999, pp. 20-22
Citations number
20
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY
ISSN journal
10703284 → ACNP
Volume
25
Issue
1
Year of publication
1999
Pages
20 - 22
Database
ISI
SICI code
1070-3284(199901)25:1<20:ROTPWS>2.0.ZU;2-N
Abstract
It was found that the bubbling of sulfur dioxide through a suspension of ta ntalum pentachloride in benzene and tert-butylbenzene affords diphenyl sulf inate derivatives H-2[TaCl5(O2S)(C6H5)(2)] and H-2[(TaOCl3)(2)(O2S)R-2]RH ( R = C6H5 Or t-BuC6H4) at room temperature or H-2[(TaOCl3)(2)(O2S)(C6H5)(2)] in boiling benzene. The conclusion about the composition and structure of the complexes was based on the data of elemental analysis, IR, and NMR spec troscopy. Hydrolysis of H-2[TaCl5(O2S)(C6H5)(2)] gave diphenyl sulfoxide. T he mechanism for its formation is proposed.