Keto-enol tautomerism as a polarity indicator in ionic liquids

被引:38
作者
Earle, MJ [1 ]
Engel, BS [1 ]
Seddon, KR [1 ]
机构
[1] Queens Univ Belfast, QUILL Ctr, Belfast BT9 5AG, Antrim, North Ireland
关键词
D O I
10.1071/CH03259
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The keto-enol tautomeric equilibrium for pentane-2,4-dione has been explored in several ionic liquids and these data have been used to give an indication of their polarities in the ground state. The results suggest higher apparent polarities than have been previously indicated by the use of solvatochromatic dyes.
引用
收藏
页码:149 / 150
页数:2
相关论文
共 40 条
[1]   How polar are room-temperature ionic liquids? [J].
Aki, SNVK ;
Brennecke, JF ;
Samanta, A .
CHEMICAL COMMUNICATIONS, 2001, (05) :413-414
[2]   AN NMR STUDY OF KETO-ENOL TAUTOMERISM IN BETA-DIKETONES [J].
ALLEN, G ;
DWEK, RA .
JOURNAL OF THE CHEMICAL SOCIETY B-PHYSICAL ORGANIC, 1966, (02) :161-&
[3]   Characterizing ionic liquids on the basis of multiple solvation interactions [J].
Anderson, JL ;
Ding, J ;
Welton, T ;
Armstrong, DW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (47) :14247-14254
[4]   Temperature-dependent microscopic solvent properties of 'dry' and 'wet' 1-butyl-3-methylimidazolium hexafluorophosphate: correlation with ET(30) and Kamlet-Taft polarity scales [J].
Baker, SN ;
Baker, GA ;
Bright, FV .
GREEN CHEMISTRY, 2002, 4 (02) :165-169
[5]   The cybotactic region surrounding fluorescent probes dissolved in 1-butyl-3-methylimidazolium hexafluorophosphate: Effects of temperature and added carbon dioxide [J].
Baker, SN ;
Baker, GA ;
Kane, MA ;
Bright, FV .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (39) :9663-9668
[6]   Reaction kinetics in ionic liquids: Pulse radiolysis studies of 1-butyl-3-methylimidazolium salts [J].
Behar, D ;
Gonzalez, C ;
Neta, P .
JOURNAL OF PHYSICAL CHEMISTRY A, 2001, 105 (32) :7607-7614
[7]   Hydrophobic, highly conductive ambient-temperature molten salts [J].
Bonhote, P ;
Dias, AP ;
Papageorgiou, N ;
Kalyanasundaram, K ;
Gratzel, M .
INORGANIC CHEMISTRY, 1996, 35 (05) :1168-1178
[9]  
BURNETT JL, 1966, J PHYS CHEM-US, V70, P939
[10]  
Carmichael AJ, 2000, J PHYS ORG CHEM, V13, P591, DOI 10.1002/1099-1395(200010)13:10<591::AID-POC305>3.0.CO