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三茂钷

三茂钷
别名 三(环戊二烯基)钷
识别
CAS号 112341-23-8  checkY
SMILES
 
  • c1ccc[cH-]1.c2ccc[cH-]2.c3ccc[cH-]3.[Pm+3]
性质
化学式 Pm(C5H5)3
摩尔质量 340.285 g·mol⁻¹
外观 黄色至橙色固体[1]
沸点 145~260℃
(10-3~10-4mmHg,升华)
相关物质
相关化学品 环戊二烯
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

三茂钷金属有机化合物,化学式为Pm(C5H5)3,在干燥空气中稳定。有放射性。

三茂钷和一般过渡金属的环戊二烯配合物不同,被认为是离子型键合。[1]理论计算得出它的Pm自然布居分析(NPA)电子构型为6s0.115d1.194f2.21[2]

制备

三茂钷可在四氢呋喃介质中,用无水氯化钷环戊二烯钠反应得到:[1]

3C5H5Na + PmCl3 → (C5H5)3Pm + 3 NaCl

化学性质

三茂钷遇水分解,生成氢氧化钷环戊二烯

参考资料

  1. ^ 1.0 1.1 1.2 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 等主编. 科学出版社. 2.3.7 稀土元素有机化合物. P260~261. 1.π络合物
  2. ^ Krinsky, Jamin L.; Minasian, Stefan G.; Arnold, John. Covalent Lanthanide Chemistry Near the Limit of Weak Bonding: Observation of (CpSiMe3)3Ce−ECp* and a Comprehensive Density Functional Theory Analysis of Cp3Ln−ECp (E = Al, Ga). Inorganic Chemistry (American Chemical Society (ACS)). 2010-12-08, 50 (1): 345–357. ISSN 0020-1669. doi:10.1021/ic102028d. 
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三茂钷
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