Predicting infinite-dilution activity coefficients of organic solutes in ionic liquids

被引:84
作者
Eike, DM [1 ]
Brennecke, JF [1 ]
Maginn, EJ [1 ]
机构
[1] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
关键词
D O I
10.1021/ie034152p
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Room-temperature ionic liquids have shown great potential as media for reactions and separations. Information on how solutes interact with these solvents is crucial in assessing their usefulness. Here, the quantitative structure-property relationship (QSPR) method is used to correlate values of infinite-dilution activity coefficients for 38 solutes in three ionic liquids. Constant-temperature and temperature-dependent correlations are created with correlation coefficients ranging from R-2 = 0.90 to R-2 = 0.99. In addition, correlation parameters are analyzed to understand the interactions that affect infinite-dilution activity coefficients.
引用
收藏
页码:1039 / 1048
页数:10
相关论文
共 46 条
[1]   High-stability ionic liquids. A new class of stationary phases for gas chromatography [J].
Anderson, JL ;
Armstrong, DW .
ANALYTICAL CHEMISTRY, 2003, 75 (18) :4851-4858
[2]   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
[3]   Solution thermodynamics of imidazolium-based ionic liquids and water [J].
Anthony, JL ;
Maginn, EJ ;
Brennecke, JF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (44) :10942-10949
[4]   Solubilities and thermodynamic properties of gases in the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate [J].
Anthony, JL ;
Maginn, EJ ;
Brennecke, JF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (29) :7315-7320
[5]   Ionic liquids: Innovative fluids for chemical processing [J].
Brennecke, JF ;
Maginn, EJ .
AICHE JOURNAL, 2001, 47 (11) :2384-2389
[6]  
CADENA CC, UNPUB WHY IS CO2 SO
[7]  
Cammarata L, 2001, PHYS CHEM CHEM PHYS, V3, P5192, DOI 10.1039/b106900d
[8]   Solvent properties of the 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid [J].
Carda-Broch, S ;
Berthod, A ;
Armstrong, DW .
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2003, 375 (02) :191-199
[9]   Comparative study of semitheoretical models for predicting infinite dilution activity coefficients of alkanes in organic solvents [J].
Castells, CB ;
Carr, PW ;
Eikens, DI ;
Bush, D ;
Eckert, CA .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (10) :4104-4109
[10]   Solvent-solute interactions in ionic liquids [J].
Crowhurst, L ;
Mawdsley, PR ;
Perez-Arlandis, JM ;
Salter, PA ;
Welton, T .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (13) :2790-2794