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四乙酸锡

四乙酸锡

英文名 Tin(IV) acetate
Tin tetraacetate
别名 乙酸锡(IV)
四醋酸锡
识别
CAS号 2800-96-6  checkY
PubChem 24861300
性质
化学式 Sn(CH3COO)4
摩尔质量 353.89 g·mol⁻¹
外观 白色针状晶体[1]
熔点 242 °C(515 K)
相关物质
其他阴离子 三氟乙酸锡(IV)
其他阳离子 四乙酸铅
相关化学品 乙酸亚锡
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

四乙酸锡(IV)的乙酸盐,化学式为Sn(CH3COO)4

制备

四乙酸锡可由乙酸亚铊四碘化锡乙酸酐中回流,反应完毕后浓缩溶液并冷却,析出晶体,用无水乙醚洗涤,真空干燥得到:[1]

4 CH3COOTl + SnI4 → Sn(CH3COO)4 + 4 TlI↓

四苯基锡在乙酸-乙酸酐混合物中于120°C回流,可以定量生成四乙酸锡:[2]

4 CH3COOH + (C6H5)4Sn → Sn(CH3COO)4 + 4C6H6

四硝酸锡乙酸乙酸酐反应也能得到四乙酸锡,但和三氟乙酸酐反应,却得不到其类似物,而是(NO2)2[Sn(CF3COO)6]。[3]

4 CH3COOH + Sn(NO3)4 → Sn(CH3COO)4 + 4 HNO3

性质

四乙酸锡遇水分解,生成氢氧化锡沉淀和乙酸[1]

Sn(CH3COO)4 + 4 H2O → Sn(OH)4 + 4 CH3COOH

硫醇等含硫物种反应,生成相应的含硫锡化合物。[4]

参考文献

  1. ^ 1.0 1.1 1.2 乙酸锡(IV). Wingch化学品数据库Beta. [2017-7-29]
  2. ^ Albert K. Sawyer, Craig Frey. A Simple Synthesis of Tin(IV) Acetate from Tetraphenyltin. Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 1983, 13(2):259-262. DOI: 10.1080/00945718308059330
  3. ^ Harrison P G, Khalil M I, Logan N. A contribution to the chemistry of tin(IV) nitrate. Inorganica Chimica Acta, 1978, 30(2):165-170. DOI: 10.1016/S0020-1693(00)89031-3
  4. ^ Mehrotr R C, Srivastav G, Vasant E N. Reactions of tin tetraacetate with sulphur ligands. Inorganica Chimica Acta, 1981, 47:125-130. DOI: 10.1016/S0020-1693(00)89317-2

参见

  • 有机锡化学
  • Gmelin Handbook of Inorganic Chemistry - Sn - Organotin compounds中关于相关物种及其衍生物的介绍。
  • Sakuntala E N, Shanker R. Reactions of tin tetraacetate with benzothiazolines[J]. Monatshefte Für Chemie, 1986, 117(5):607-612. DOI: 10.1007/BF00817897
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四乙酸锡
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