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四甲基二硅桥联二(3-叔庚基-环戊二烯基)四羰基二铁及其热重排反应产物的晶体结构
引用本文:王瑾玲,缪方明,许善生,孔垂华,周秀中.四甲基二硅桥联二(3-叔庚基-环戊二烯基)四羰基二铁及其热重排反应产物的晶体结构[J].结构化学,1997(6).
作者姓名:王瑾玲  缪方明  许善生  孔垂华  周秀中
作者单位:天津师范大学晶体化学系研究所!天津,300074,天津师范大学晶体化学系研究所!天津,300074,南开大学化学系!天津,300071,南开大学化学系!天津,300071,南开大学化学系!天津,300071
基金项目:天津市高教局重点学科基金,国家自然科学基金
摘    要:1,2-二(3-取代环戌二烯)四甲基二硅烷与五炭基铁反应生成二铁配合物,它的热重排反应形成硅铁交互排布的同分异构体。X-射线单晶衍射测定结果表明化合物三斜晶系,P1空间群,(3),是单科晶系,P21/a空间群,(3),这对同分异构体有着完全不同的构象:化合物(Ⅰ)由于两个构象不等同的叔庚基而失去了C2对称性,是具有顺式构型的Fe-Fe双核配合物;而化合物(Ⅱ)为Fe-Si交替排布的反式中心对称构型。

关 键 词:晶体结构  双核铁-铁及铁-硅配合物  热重排反应

Crystal Structures of Tetramethyl Disilane Bis (3-Tert heptyl Dicyclopentadienyl)Tetracarbonyl Diiron and its heat-Rearrangement Reaction Product
WANG JIn-Ling, MIAO Fang-Ming.Crystal Structures of Tetramethyl Disilane Bis (3-Tert heptyl Dicyclopentadienyl)Tetracarbonyl Diiron and its heat-Rearrangement Reaction Product[J].Chinese Journal of Structural Chemistry,1997(6).
Authors:WANG JIn-Ling  MIAO Fang-Ming
Abstract:The products of heat-arrangement were found by the reaction of 1, 2-di(3-substituted dicyclopentadienyl) tetramethyl disiline with Fe (CO)5, being Fe - Si alternately appeared isomers.The crysTal structures of compound (I)and (Ⅱ) are determinedby X-ray diffraction analysis. triclinic. Pl,monoclinic, P21/a, b=11. 097(3),Thepair of the isomers has a absolutely different configurations: compound(Ⅰ) which lost a C2 symmetry with two unequal t-heptyl groups, is an Fe-Fe dinuclear complex and has a cis-configuration, but compound(Ⅱ) has a symmetric centre with trans-configuration and the Fe-Si bondsalternately appear.
Keywords:crystal structure  Fe-Fe and Fe-Si dinuclear complex heat-rearrangement
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