Next Article in Journal
In Silico Design in Homogeneous Catalysis Using Descriptor Modelling
Next Article in Special Issue
Microwave-Assisted Esterification of N-Acetyl-L-Phenylalanine Using Modified Mukaiyama’s Reagents: A New Approach Involving Ionic Liquids
Previous Article in Journal
Identification and molecular modeling of a family 5 endocellulase from Thermus caldophilus GK24, a cellulolytic strain of Thermus thermophilus
Previous Article in Special Issue
Application of Chromatographic and Electrophoretic Methods for the Analysis of Imidazolium and Pyridinium Cations as Used in Ionic Liquids
Article

Laser photolysis study of anthraquinone in binary mixtures ofionic liquid [bmim][PF6] and organic solvent

1
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, P.O. Box 800-204, Shanghai 201800, China
2
Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu 241000, P.R. China
3
Graduate University of Chinese Academy of Sciences, Beijing 100049, P.R. China
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2006, 7(12), 590-600; https://0-doi-org.brum.beds.ac.uk/10.3390/i7120590
Received: 14 September 2006 / Accepted: 14 November 2006 / Published: 19 December 2006
(This article belongs to the Special Issue Ionic Liquids)
Photochemical properties of the ionic liquid (RTIL) 1-butyl-3-methylimidazoliumhexafluorophosphate [bmim][PF6] and its binary mixed solutions with organic solvent(DMF and MeCN) were investigated by laser photolysis at an excitation wavelength of 355nm, using anthraquinone (AQ) as a probe molecule. It was indicated that the triplet excitedstate of AQ (3AQ*) can abstract hydrogen from [bmim][PF6]. Moreover, along with thechange of the ratio of RTIL and organic solvent, the reaction rate constant changes regularly.Critical points were observed at volume fraction VRTIL = 0.2 for RTIL/MeCN and VRTIL =0.05 for RTIL/DMF. For both systems, before the critical point, the rate constant increasesrapidly with increasing VRTIL; however, it decreases obviously with VRTIL after the criticalpoint. We conclude that the concentration dependence is dominant at lower VRTIL, while theviscosity and phase transformation are dominant at higher VRTIL for the effect of ionic liquidon the decay of rate constant.
Keywords: 1-butyl-3-methylimidazolium hexafluorophosphate; Laser photolysis; Anthraquinone; Rate constant 1-butyl-3-methylimidazolium hexafluorophosphate; Laser photolysis; Anthraquinone; Rate constant
MDPI and ACS Style

Zhu, G.; Xu, J.; Wu, G.; Zhu, H.; Long, D.; Chen, S.; Yao, S. Laser photolysis study of anthraquinone in binary mixtures ofionic liquid [bmim][PF6] and organic solvent. Int. J. Mol. Sci. 2006, 7, 590-600. https://0-doi-org.brum.beds.ac.uk/10.3390/i7120590

AMA Style

Zhu G, Xu J, Wu G, Zhu H, Long D, Chen S, Yao S. Laser photolysis study of anthraquinone in binary mixtures ofionic liquid [bmim][PF6] and organic solvent. International Journal of Molecular Sciences. 2006; 7(12):590-600. https://0-doi-org.brum.beds.ac.uk/10.3390/i7120590

Chicago/Turabian Style

Zhu, Guanglai, Jingjing Xu, Guozhong Wu, Hongping Zhu, Dewu Long, Shimou Chen, and Side Yao. 2006. "Laser photolysis study of anthraquinone in binary mixtures ofionic liquid [bmim][PF6] and organic solvent" International Journal of Molecular Sciences 7, no. 12: 590-600. https://0-doi-org.brum.beds.ac.uk/10.3390/i7120590

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop