Hydrogen bonding of some organic acid in supercritical CO2 with polar cosolvents

被引：44

作者：

Ke, J ^{[1
]}

Jin, SZ ^{[1
]}

Han, BX ^{[1
]}

Yan, HK ^{[1
]}

Shen, DY ^{[1
]}

机构：

[1] ACAD SINICA,INST CHEM,BEIJING 100080,PEOPLES R CHINA

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 1997年 / 11卷 / 1-2期

关键词：

cosolvent; FTIR; hydrogen bonding; organic acid; supercritical CO2;

D O I：

10.1016/S0896-8446(97)00029-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

FTIR spectroscopy was used to study the hydrogen bonding of benzoic acid and salicylic acid with ethanol and methanol in supercritical CO2. The extent of hydrogen bonding was estimated from the hydrogen-bonded and nonhydrogen-bonded infrared absorption bands. It was found that the solutes and the cosolvents can form hydrogen bondings even their concentrations are very low. At constant solute concentrations, the extent of hydrogen bonding increases with cosolvent concentrations. (C) 1997 Elsevier Science B.V.

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页码：53 / 60

页数：8

相关论文

共 31 条

[1] AN INFRA-RED STUDY OF ASSOCIATION OF BENZOIC ACID IN VAPOUR PHASE AND IN DILUTE SOLUTION IN NON-POLAR SOLVENTS [J].

ALLEN, G ;

WATKINSO.JG ;

WEBB, KH .

SPECTROCHIMICA ACTA, 1966, 22 (05) :807-&

[2] UV-VISIBLE ABSORBENCY SPECTROSCOPY OF ORGANIC PROBES IN SUPERCRITICAL WATER [J].

BENNETT, GE ;

JOHNSTON, KP .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (02) :441-447

[3]

BETTS TA, 1992, J SUPERCRIT FLUID, V5, P48, DOI 10.1016/0896-8446(92)90041-H

[4] SPECTROSCOPIC DETERMINATION OF SOLUTE FLUID CLUSTER SIZE IN SUPERCRITICAL N2O [J].

BETTS, TA ;

ZAGROBELNY, J ;

BRIGHT, FV .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (21) :8163-8171

[5] REVERSIBLE EXCITED-STATE TRANSIENT SOLVATION IN BINARY SUPERCRITICAL FLUIDS REVEALED BY MULTIFREQUENCY PHASE AND MODULATION FLUORESCENCE [J].

BETTS, TA ;

BRIGHT, FV .

APPLIED SPECTROSCOPY, 1990, 44 (07) :1203-1209

[6]

BRENNECKE JF, 1988, P INT S SUPERCRITICA, P263

[7] INFRARED SPECTRA OF SUBSTITUTED SALICYLIC ACIDS AND THEIR ESTERS [J].

BROOKS, CJ ;

EGLINTON, G ;

MORMAN, JF .

JOURNAL OF THE CHEMICAL SOCIETY, 1961, (FEB) :661-&

[8] CLUSTERING IN DILUTE, BINARY SUPERCRITICAL MIXTURES - A FLUCTUATION ANALYSIS [J].

DEBENEDETTI, PG .

CHEMICAL ENGINEERING SCIENCE, 1987, 42 (09) :2203-2212

[9] MODIFICATION OF SUPERCRITICAL FLUID PHASE-BEHAVIOR USING POLAR COSOLVENTS [J].

DOBBS, JM ;

WONG, JM ;

LAHIERE, RJ ;

JOHNSTON, KP .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1987, 26 (01) :56-65

[10] SOLUTE PARTIAL MOLAL VOLUMES IN SUPERCRITICAL FLUIDS [J].

ECKERT, CA ;

ZIGER, DH ;

JOHNSTON, KP ;

KIM, S .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (12) :2738-2746

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