SOLVATION OF LARGE MOLECULES - SOME EXACT RESULTS ON THE DEPENDENCE ON VOLUME AND SURFACE-AREA OF THE SOLUTE

被引:24
作者
BENNAIM, A
机构
[1] Department of Physical Chemistry, The Hebrew University of Jerusalem, Jerusalem
关键词
SOLVATION; LARGE MOLECULES; GIBBS AND HELMHOLTZ ENERGIES;
D O I
10.1016/0301-4622(94)00041-7
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 solvation Gibbs and Helmholtz energies are evaluated exactly in two model systems. One is a modification of an interstitial model for water, the second is; a non ideal gas mixture within the second virial approximation. In both systems the general form of the solvation Gibb's energy of a large solute s is Delta G*(s) = aV(s) + bA(s), where V-s and A(s) are the volume and surface area of the solute s. We also show that this general form is likely to hold true in any real solution.
引用
收藏
页码:203 / 216
页数:14
相关论文
共 20 条
[1]  
Ben-Naim A., 1974, WATER AQUEOUS SOLUTI
[2]   SIZE DEPENDENCE OF THE SOLVATION FREE-ENERGIES OF LARGE SOLUTES [J].
BENNAIM, A ;
MAZO, RM .
JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (41) :10829-10834
[4]  
BENNAIM A, 1992, STATISTICAL THERMODY
[5]  
BENNAIM A, 1987, SOLVATION THERMODYNA
[6]  
BENNAIM A, 1982, FARADAY SOC CHEM SOC, V17, P121
[7]   Thermodynamics of high polymer solutions [J].
Flory, PJ .
JOURNAL OF CHEMICAL PHYSICS, 1941, 9 (08) :660-661
[8]  
GUGGENHEIM EA, 1952, MIXTURES
[9]   Solutions of long chain compounds [J].
Huggins, ML .
JOURNAL OF CHEMICAL PHYSICS, 1941, 9 (05) :440-440
[10]   ENTROPY OF HYDROPHOBIC HYDRATION - A NEW STATISTICAL MECHANICAL FORMULATION [J].
LAZARIDIS, T ;
PAULAITIS, ME .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (09) :3847-3855