Excess enthalpies of binary mixtures of ortho-, meta-, and para-structural isomers

被引:3
作者
Liu, Hongli [1 ,2 ]
Yamashita, Tomoko [1 ]
Kamiyama, Tadashi [1 ]
Fujisawa, Masao [1 ,3 ]
Kimura, Takayoshi [1 ]
机构
[1] Kinki Univ, Fac Sci & Technol, Dept Chem, Higashiosaka, Osaka 5778502, Japan
[2] Cent S Univ, Sch Chem & Chem, Changsha 410083, Hunan, Peoples R China
[3] Kinki Univ, Dept Biotechnol Sci, Wakayama 6496493, Japan
关键词
Excess enthalpy; Structural isomers; Interaction energies of dipole; Induced dipole; Quadrupole; MIXING; 2; COUPLES; 298.15; K; S-ENANTIOMERS; R-ENANTIOMERS; T=298.15 K; ETHANOL; VOLUMES;
D O I
10.1007/s10973-009-0483-8
中图分类号
O414.1 [热力学];
学科分类号
摘要
The excess molar enthalpies of 8 binary mixtures for the o-, m-, and p-isomers of fluoroiodobenzene, fluoromethoxybenzene, bromofluorobenzene, chlorofluoro-benzene, difluorobenzene, fluoromethylbenzene, fluoronitrobenzene, and aminofluoro-benzene were measured at 298.15 K. The changes of the measured enthalpies were very small. The experimental results revealed that the isomers containing two electron-acceptor groups showed the most positive excess enthalpy change, while isomers containing both one electron donor and one electron acceptor group, such as aminofluorobenzene, showed more stable and always the most negative results.
引用
收藏
页码:95 / 103
页数:9
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