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Acta Chimica Sinica ›› 1980, Vol. 38 ›› Issue (5): 497-501. Previous Articles Next Articles
陈寿山, 刘以寅, 玄镇爱, 王序昆
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CHEN SHOU-SHAN, LIU YI-YIN, XUAN ZHEN-AI, WANG XU-KUN
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Di-p-tolylhafnocene,di-o-tolylhafnocene and di-m-tolylhafnocene were synthesized by reaction of aryllithium with hafnooene dichloride.The steric effect of o-methyl group in the ditolylmetallocenes(M=Ti,Zr,and Hf) were compared.It decreases in the order:di(o-tolyl) >vitanocone >di(o-tolyl) zireonocene>di(o-tolyl)-hafnocene.These compounds readily react with electrophilic reagents such as hydrogon chloride,acetyl chloride and bromine,resulting in the cleavage of the carbon-hafnium bond.The diphenylhafnocene and ditolylhafnocenes lost one phenyl or tolyl group by hydrolysis and gave the compounds with general formula [(η5-C5H5)2 Ar Hf]2O.The reaction of the latter with HCl lad to the cleavages of Ar-Hf and Hf-O-Hf bonds and the formation of hafnocene dichloride.The lR and NMR spectra of these new serial of organometallic compounds were given.
CHEN SHOU-SHAN, LIU YI-YIN, XUAN ZHEN-AI, WANG XU-KUN. STUDIES ON SOME SUBSTITUTED DIPHENYLHAFNOCENE COMPOUNDS[J]. Acta Chimica Sinica, 1980, 38(5): 497-501.
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