REACTION ENTROPIES FOR THE O-2/O-2- REDOX COUPLE IN APROTIC-SOLVENTS

被引：19
作者：
OHSAKA, T
TSUSHIMA, M
TOKUDA, K
机构：
[1] Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Midori-ku, Yokohama, 227
来源：
BIOELECTROCHEMISTRY AND BIOENERGETICS | 1993年 / 31卷 / 03期
关键词：
D O I：
10.1016/0302-4598(93)86114-G
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The reaction entropies DELTAS(rc)degrees for the redox reaction of the O2/O2- couple in aprotic solvents have been obtained from the temperature dependence of the formal potential measured using a nonisothermal electrochemical cell. The solvent effect on the values of DELTAS(rc)degrees is discussed in terms of the Born dielectric continuum model and the empirical solvent parameters. A linear decrease in the DELTAS(rc)degrees value with increasing solvent acceptor number was observed, indicating that the orientation of solvent dipoles around O2- is the main factor determining the values of the entropy change and its solvent dependence.
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页码：289 / 300
页数：12
相关论文
共 63 条
[41]   ELECTRODE-KINETICS OF METAL-COMPLEXES CONFINED IN PERFLUORO POLYCARBOXYLATE AND POLYSULFONATE COATINGS ON GRAPHITE-ELECTRODES [J].
OYAMA, N ;
OHSAKA, T ;
USHIROGOUCHI, T ;
SANPEI, S ;
NAKAMURA, S .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1988, 61 (09) :3103-3114
[42]  
OYANAGUI Y, 1989, SOD ACTIVE OXYGEN MO
[43]  
PEOVER ME, 1965, J CHEM SOC CHEM COMM, P183
[44]  
RODGERS MA, 1981, OXYGEN OXYRADICALS C
[45]  
Rotilio G., 1986, SUPEROXIDE SUPEROXID
[46]   DEFICIENCIES OF THE FERRICINIUM-FERROCENE REDOX COUPLE FOR ESTIMATING TRANSFER ENERGIES OF SINGLE IONS [J].
SAHAMI, S ;
WEAVER, MJ .
JOURNAL OF SOLUTION CHEMISTRY, 1981, 10 (03) :199-208
[47]   ENTROPIC AND ENTHALPIC CONTRIBUTIONS TO THE SOLVENT DEPENDENCE OF THE THERMODYNAMICS OF TRANSITION-METAL REDOX COUPLES .2. COUPLES CONTAINING AMMINE AND ETHYLENEDIAMINE LIGANDS [J].
SAHAMI, S ;
WEAVER, MJ .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1981, 122 (MAY) :171-181
[48]   CHEMISTRY OF SUPEROXIDE ION [J].
SAWYER, DT ;
GIBIAN, MJ .
TETRAHEDRON, 1979, 35 (12) :1471-1481
[49]   EFFECTS OF MEDIA AND ELECTRODE MATERIALS ON THE ELECTROCHEMICAL REDUCTION OF DIOXYGEN [J].
SAWYER, DT ;
CHLERICATO, G ;
ANGELIS, CT ;
NANNI, EJ ;
TSUCHIYA, T .
ANALYTICAL CHEMISTRY, 1982, 54 (11) :1720-1724
[50]   ELECTROCHEMISTRY OF OXYGEN AND SUPEROXIDE ION IN DIMETHYLSULFOXIDE AT PLATINUM GOLD AND MERCURY ELECTRODES [J].
SAWYER, DT ;
ROBERTS, JL .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1966, 12 (02) :90-&
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