STUDIES ON ORGANOMETALLIC COMPOUNDS OF TITANIUM,ZIRCONIUM AND HAFNIUM——THE SYNTHESES AND PROPERTIES

来源 :Science in China,Ser.B | 被引量 : 0次 | 上传用户:huyuxuan0601
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Aryllithium reacts with Cp_2MCl_2 and Cp’_2 MCl_2 (C_p=η~5-C_5H_5, C_P′=η~5-CH_3C_5H_4:M=Ti, Zr, Hf) respectively to prepare a series of new bis (cyclopentadienyl), bis (methy-lcyclopentadienyl) diaryl derivatives of titanium, zirconium and hafnium. The hydrolysicreaction of these organometallic compounds are studied, the derivatives of zirconium andhafnium can be easily hydrolyzed with the exception of that of titanium. They react withhydrogen chloride, acetyl chloride, bromine and haloacids to form the respective bis(cyclo-pentadionyl) dihalides of these metals. The NMR and IR spectra were discussed in regardto the structure of (η~5--CH_3C_5H_4)_2 MAr_2 and (η~5--CH_3C_5H_4)_2 MX_2. Aryllithium reacts with Cp_2MCl_2 and Cp’_2 MCl_2 (C_p = η~5-C_5H_5, C_P’ = η~5-CH_3C_5H_4: M = Ti, Zr, Hf) respectively to prepare a series of new bis (cyclopentadienyl), bis -lcyclopentadienyl) diaryl derivatives of titanium, zirconium and hafnium. The hydrolysic reaction of these organometallic compounds are studied, the derivatives of zirconium andhafnium can be easily hydrolyzed with the exception of that of titanium. They react withhydrogen chloride, acetyl chloride, bromine and haloacids to The NMR and IR spectra were discussed in regard to the structure of (η ~ 5 - CH_3C_5H_4) _2 MAr_2 and (η ~ 5 - CH_3C_5H_4) _2 MX_2.
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