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Laser photolysis study of anthraquinone in binary mixtures of ionic liquid [bmim][PF(6)] and organic solvent
Zhu, GL(朱光来); Xu, JJ; Wu, GZ(吴国忠); Zhu, HP; Long, DW(龙德武); Chen, S(陈仕谋); Yao, SD(姚思德); Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
2006
Source PublicationINTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN1661-6596
Volume7Issue:12Pages:590
AbstractPhotochemical properties of the ionic liquid (RTIL) 1-butyl-3-methylimidazolium hexafluorophosphate [bmim][PF(6)] and its binary mixed solutions with organic solvent (DMF and MeCN) were investigated by laser photolysis at an excitation wavelength of 355 nm, using anthraquinone (AQ) as a probe molecule. It was indicated that the triplet excited state of AQ ((3)AQ*) can abstract hydrogen from [bmim][PF(6)]. Moreover, along with the change of the ratio of RTIL and organic solvent, the reaction rate constant changes regularly. Critical points were observed at volume fraction V(RTIL)=0.2 for RTIL/MeCN and V(RTIL)=0.05 for RTIL/DMF. For both systems, before the critical point, the rate constant increases rapidly with increasing V(RTIL); however, it decreases obviously with V(RTIL) after the critical point. We conclude that the concentration dependence is dominant at lower V(RTIL), while the viscosity and phase transformation are dominant at higher V(RTIL) for the effect of ionic liquid on the decay of rate constant.
Keyword1-butyl-3-methylimidazolium Hexafluorophosphate Laser Photolysis Anthraquinone Rate Constant
Subject AreaPhysics
Indexed Bysci
Language英语
Funding Project应物所项目组
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8098
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorWu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhu, GL,Xu, JJ,Wu, GZ,et al. Laser photolysis study of anthraquinone in binary mixtures of ionic liquid [bmim][PF(6)] and organic solvent[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2006,7(12):590.
APA Zhu, GL.,Xu, JJ.,Wu, GZ.,Zhu, HP.,Long, DW.,...&Wu, GZ .(2006).Laser photolysis study of anthraquinone in binary mixtures of ionic liquid [bmim][PF(6)] and organic solvent.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,7(12),590.
MLA Zhu, GL,et al."Laser photolysis study of anthraquinone in binary mixtures of ionic liquid [bmim][PF(6)] and organic solvent".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 7.12(2006):590.
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