Influence électronique et stérique du ligand tétraméthylcyclopentadiényle sur les propriétés physiques et sur la réactivité de complexes du titane et du zirconium
P Courtot, R Pichon, JY Salaun…
Index: Courtot, P.; Pichon, R.; Salaun, J. Y.; Toupet, L. Canadian Journal of Chemistry, 1991 , vol. 69, # 4 p. 661 - 672
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Citation Number: 40
Abstract
The complexes (C5Me4H) 2MR1R2 (M= Ti, Zr) and (C5Me4H)(C5H5) MR1R2 (M= Ti) have been prepared (R1= R2= Cl, CH3, C6H5, p-C6H4CH3, CO; R1= Cl, R2= CH3, C6H5, p- C6H4CH3). The NMR and IR spectra of these complexes indicate that C5Me4H exhibits an electron-donor effect more important than C5H5 and a little bit weaker than that of C5Me5. A structural investigation of the complex (C5Me4H) 2Zr (C6H5) Cl and the study of the 1H or ...
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