Reactions of [SbR3X2]2O with carboxylates and the crystal structures of [SbPh3(O2CCF3)2]2O and [SbMe3(O2CCH3)2]2O
摘要:
Reactions of [SbPh3Br](2)O and [SbMe3Cl](2)O with a number of carboxylates lead to halogen substitution and formation of either [SbR3(O2CR')](2)O or SbR3(O2CR')(2). X-ray structures for two of the products, [SbPh3(O2CCF3)](2)O and [SbMe3(O2CCH3)](2)O, show that the carboxylates are unidentate. From NMR spectroscopy, the oxygen bridged compounds are hydrolysed by adventitious water giving SbR3(O2CR')OH in solution but when R = phenyl the original compounds can be recovered on crystallisation. (C) 1998 Elsevier Science S.A. All rights reserved.