Studies of [Me3NC2H4OH]Zn2Cl5 Aqueous Solution by Laser Photolysis

Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (6): 483-488. Previous Articles Next Articles

[Me₃NC₂H₄OH]Zn₂Cl₅水溶液的激光光解研究

付海英，吴国忠，龙德武，刘耀东，王文峰，姚思德*

(中国科学院上海应用物理研究所上海 201800)

投稿日期:2005-06-21 修回日期:2005-12-05 发布日期:2006-03-28
通讯作者: 姚思德

Studies of [Me₃NC₂H₄OH]Zn₂Cl₅Aqueous Solution by Laser Photolysis

FU Hai-Ying, WU Guo-Zhong, LONG De-Wu, LIU Yao-Dong, WANG Wen-Feng, YAO Si-De*

(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800)

Received:2005-06-21 Revised:2005-12-05 Published:2006-03-28
Contact: YAO Si-De

Abstract

The absorption spectra of [Me₃NC₂H₄OH]Zn₂Cl₅ (R-Zn₂Cl₅) in aqueous solutions were studied by time-resolved laser photolysis, and the mechanism of monophotonic ionization was suggested. The oxidizing radical SO₄^•－ was used to produce radical cation. Comparison of R-Zn₂Cl₅with NaCl, ZnCl₂and choline showed that [Zn₂Cl₅]^－ played an important role in photoionization while [Me₃NC₂H₄OH]^•＋ cation had little function on its photolysis. Rate constant for oxidation reactions was determined in R-Zn₂Cl₅ ionic liquid. The second-order decay rate constant of SO₄^•－ oxidation reactions at 460 nm, 1.3×10⁹ L•mol^－1•s^－1, was almost equal to the product rate constant of 1.5×10⁹ L•mol^－1•s^－1 at 320 nm in R-Zn₂Cl₅ aqueous solution, showing that the decay and the product were synchronic.

Key words: ionic liquid, choline, monophotonic ionization, laser photolysis

Cite this article

FU Hai-Ying, WU Guo-Zhong, LONG De-Wu, LIU Yao-Dong, WANG Wen-Feng, YAO Si-De*. Studies of [Me₃NC₂H₄OH]Zn₂Cl₅Aqueous Solution by Laser Photolysis[J]. Acta Chimica Sinica, 2006, 64(6): 483-488.

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[Me₃NC₂H₄OH]Zn₂Cl₅水溶液的激光光解研究

Studies of [Me₃NC₂H₄OH]Zn₂Cl₅Aqueous Solution by Laser Photolysis

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[Me3NC2H4OH]Zn2Cl5水溶液的激光光解研究