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溴化锡

溴化锡
IUPAC名
tetrabromostannate
别名 溴化高锡
识别
CAS号 7789-67-5(无水)  checkY
2422158-82-3(五水)  checkY
PubChem 24616
ChemSpider 23018
SMILES
 
  • Br[Sn](Br)(Br)Br
InChI
 
  • 1/4BrH.Sn/h4*1H;/q;;;;+4/p-4
InChIKey LTSUHJWLSNQKIP-XBHQNQODAB
EINECS 232-184-5
性质
化学式 SnBr4
摩尔质量 438.33 g/mol g·mol⁻¹
外观 无色固体 [1]
密度 3.340 g/cm3 (at 35 °C)[1]
熔点 31 °C(304 K)[1]
沸点 205 °C(478 K)[1]
溶解性 可溶
磁化率 −149.0·10−6 cm3/mol
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

四溴化锡是一种无机化合物,化学式 SnBr4。 它是一种无色低熔点固体英语Low melting point metal[1] SnBr4 可以由溴和锡在室温下直接合成:[2]

Sn + 2Br2 → SnBr4

水溶液中, Sn(H2O)64+ 的 6 个水配体中,可以有 0-6 个溴离子配体 (e.g. Sn(H2O)64+, SnBr(H2O)53+)[3] 在碱性溶液中, Sn(OH)62− 离子会在溶液中产生。[3]

SnBr4 形成 1:1 和 1:2 配合物,例如和三甲膦反应,形成 SnBr4.P(CH3)3 和 SnBr4.2P(CH3)3[4]
SnBr4 会结晶成单斜晶系的晶体,其中的 SnBr4 单元有着扭曲四面体型结构。[5]

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4. 
  2. ^ Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN 0-12-352651-5
  3. ^ 3.0 3.1 Sn NMR and vibrational spectroscopy, Taylor M. J. ; Coddington J. M., Polyhedron 1992, 11, 12, 1531-1544, doi:10.1016/S0277-5387(00)83148-4
  4. ^ Preparation, Infrared and Raman Spectra, and Stereochemistries of Pentacoordinate Trimethylphosphine Complexes, MX4•P(CH3)3 and MX4•P(CD3)3 where M = Ge or Sn and X = Cl or Br, Frieson D. K., Ozin G. A., Can. J. Chem. 51(16): 2697–2709 (1973) doi:10.1139/v73-406
  5. ^ Die Kristallstruktur von SnBr4 , Brand P., Sackmann H., Acta Crystallographica ( 1963), 16, 446-451, doi:10.1107/S0365110X63001250
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溴化锡
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