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五甲基砷

Pentamethylarsenic
IUPAC名
pentamethyl-λ5-arsane
识别
CAS号 51043-92-6  checkY
PubChem 9548862
SMILES
 
  • C[As](C)(C)(C)C
ChEBI 35867
性质
化学式 C5H15As
摩尔质量 150.09 g·mol−1
外观 无色液体
熔点 -6 °C(267 K)
沸点 >100 °C(373 K)
结构
分子构型 trigonal bipyramidal
偶极矩 0 D
危险性
GHS危险性符号
《全球化学品统一分类和标签制度》(简称“GHS”)中有毒物质的标签图案《全球化学品统一分类和标签制度》(简称“GHS”)中对环境有害物质的标签图案
GHS提示词 危险
H-术语 H331, H301, H410
主要危害 易爆、易燃
相关物质
其他阳离子 五甲基锑
五甲基铋
五甲基钽
相关化学品 三甲基砷
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

五甲基砷是一种有机砷化合物,化学式为As(CH3)5。它最初于1973年由Hubert Schmidbaur等人通过三甲基二氯化砷甲基锂的反应制得,其中三甲基二氯化砷由三甲基砷氯化得到:[1]

As(CH3)3 + Cl2 → As(CH3)3Cl2
As(CH3)3Cl2 + 2LiCH3 → As(CH3)5 + 2LiCl

该反应会产生As(CH3)4Cl和As(CH3)3=CH2两种副产物。[2]

它和醇反应可以得到四甲基烷氧基砷。[3]

参考文献

[编辑]
  1. ^ Mitschke, Karl-Heinz; Schmidbaur, Hubert. Pentamethylarsen. Chemische Berichte. November 1973, 106 (11): 3645–3651. doi:10.1002/cber.19731061124 (德语). 
  2. ^ Hubert Schmidbaur. Advances in Organometallic Chemistry. Academic Press. 1976: 229–230. ISBN 9780080580159 (英语). 
  3. ^ Eberwein, B.; Ott, R.; Weidlein, J. Monomeric tetramethylarsenic and antimony compounds with coordination number five at the central atom. Zeitschrift fuer Anorganische und Allgemeine Chemie, 1977. 431. 95-104. ISSN: 0044-2313.
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五甲基砷
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