异核三金属铁-钛配合物的合成
SYNTHESIS OF Fe-Ti HETEROTRIMETALLIC ORGANIC COMPOUNDS
作者单位
陈寿山 南开大学元素有机化学研究所, 天津 
姚文庆 南开大学元素有机化学研究所, 天津 
摘要: 由前期及后期过渡金属原子构成的异核多金属配合物对小分子如N2,CO等的活化作用具有较高的催化活性。但文献报道的这类配合物一般均含有金属-金属键,稳定性较差。本文首次制得-类结构新颖的较稳定的,包括前期和后期过渡金属的Fe-Ti异核三金属配合物。
关键词: 二茂铁基富烯  二茂铁基环戊二烯  Fe-Ti配合物  加成反应
基金项目: 国家自然科学基金会资助项目
Abstract: In this report,two new type of Fe-Ti heterotrimetallic organic compounds first have been obtained from the reaction of 6-methyl-6-ferrocenylfulvene with n-butyllithium,phenyllithium and tetrachloride titanium. Two new compounds are bis(l-ferrocenyl-l-methyl-n-pentylcyclopentadienyl) titanium dichloride,yield 51.2%,m.p.89-91℃(decompose),δH: 6.48(8H,m,2C5H4-Ti),4.10(18H,m,2C5H5FeC5H4),1.20(6H,s,2CH3),1.70,0.84(18H,m,2C4H9-n),and bis(1-ferrocenyl-1-phenylethylcyclopentadienyl) titanium dichloride,yield 41.6%,m.p.120℃ (decompose). δH: 6.94-7.04(8H,m,2C5H4-Ti),4.04(18H,m,2C5H5-FeC5H4),2.16(6H,s,2CH3),7.24(10H,m,C6H5).Since the ferrocene can be easily metallation,therefore the 6-ferrocenyl-6-methylfulvene must reacted with n-butyllithium at lower temperature(-78℃). In the case of phenyllithium,the addition reaction were slowly at room temperature,yielded the ferrocenylalkylcyclopentadienyllithium compounds. The lithium compounds directly reacted with tetrachloride titanium to give heterotrimetallic Fe-Ti compounds as red-brown solid,which are stable in the air. In nonoxidiative acid such as hydrochloric acid,these two compounds arc less stable than titanocene dichloride.
Keywords: ferrocenylfulvene  ferrocenylcyclopentadlene  Fe-Ti complex  addition reaction
投稿时间:1988-10-26 
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陈寿山,姚文庆.异核三金属铁-钛配合物的合成[J].无机化学学报,1989,5(2):98-99.
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