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Abstract
Disproportionation reactions between (CF 3 CH 2 O) 3 GeNHC 6 H 5 − n F n and TiCl 4 in petroleum ether (40−60°C) at 0° to −10°C give (CF 3 CH 2 O) 2 Ge(NHC 6 H 5 − n F n ) 2 .2TiCl 4 and (CF 3 CH 2 O)Ge(NHC 6 H 5 − n F n ) 3 . 2TiCl 4 adducts. However, complete disproportionation of (CF 3 CH 2 O) 3 Ge(NHC 6 H 5 − n F n ) (n = 1,2) occurs at −55 to −60°C to give Ge(NHC 6 H 5 − n F n ) 4 .3TiCl 4 . These complexes give double adducts on reactions with CH 3 NO 2 and CH 3 CN. All the products are characterized by elemental analyses and IR, 1 H, and 19 F NMR spectroscopy. A comparative disproportionation of the germanamines and analogous silanamines is discussed.
Acknowledgments
Financial assistance from CSIR, New Delhi, India is gratefully acknowledged. S.S. is greatly thankful to Dr. A. C. Vaid, Principal, GGDSD College, for providing the necessary facilities.