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CAS号 34822-89-4  ✓
PubChem 85397242
ChemSpider 9270356
化学式 C5H5In
摩尔质量 179.913 g·mol⁻¹
外观 乳白色固体
GHS提示词 警告
H-术语 H228, H302, H315, H319, H335
P-术语 P210, P240, P241, P261, P264, P270, P271, P280, P301+312, P302+352, P304+340, P305+351+338, P312, P321
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

环戊二烯基铟(I),化学式为C5H5In,通常缩写为CpIn(Cp为环戊二烯基阴离子),是一种含有+1氧化态的有机铟化合物,具有半夹心结构的环戊二烯基络合物。它是第一个 (1957年 [1] ) 被发现报告的低价有机铟化合物。


环戊二烯基铟(I)可以轻易地通过氯化铟(I)与环戊二烯基锂反应制备: [2]



含有+1氧化态的铟,具InX2-(X为卤素)阴离子的盐可由环戊二烯基铟(I)制备, 例如: [4]


环戊二烯基铟(I)固体是聚合物,为交替的铟原子和单元所形成的锯齿形链组成。两个铟原子与每个茂环的相对面相互作用,几乎垂直于环平面,而两个环与每个铟原子相互作用,形成约128°的键角。 [5]在气相中存在的环戊二烯基铟(I)单体中,铟原子位于芳族茂的中心轴上。




  1. ^ Fischer E.O.; Hofmann H.P. Metall-cyclopentadienyle des Indiums. Angew. Chem. 1957, 69 (20): 639. doi:10.1002/ange.19570692008. 
  2. ^ Peppe C.; Tuck D.G.; Victoriano L. A simple synthesis of cyclopentadienylindium(I). J. Chem. Soc., Dalton Trans. 1981, 69 (12): 2592. doi:10.1039/DT9810002592. 
  3. ^ Contreras J. G.; Tuck D. G. Coordination compounds of indium. XXIII. Adducts of cyclopentadienylindium(I) with boron trihalides or trimethylboron. Inorganic Chemistry. 1973, 12 (11): 2596–2599. doi:10.1021/ic50129a021. 
  4. ^ Habeeb J.J.; Tuck D.G. Co-ordination compounds of indium. Part XXXI. Further studies of anionic complexes of indium(I). J. Chem. Soc., Dalton Trans. 1976, (10): 866–869. doi:10.1039/DT9760000866. 
  5. ^ Beachley O. T.; Pazik J. C.; Glassman T. E.; Churchill M. R.; Fettinger J.C.; Blom R. Synthesis, characterization and structural studies of In(C5H4Me) by x-ray diffraction and electron diffraction techniques and a reinvestigation of the crystalline state of In(C5H5) by x-ray diffraction studies. Organometallics. 1988, 7 (5): 1051–1059. doi:10.1021/om00095a007. 
  6. ^ Lin C.S. Tuck D.G. The electronic structure of cyclopentadienylindium. Can. J. Chem. 1982, 60 (6): 699–702. doi:10.1139/v82-103. 
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