Theory of Solutions of Molecules Containing Widely Separated Charges with Special Application to Zwitterions
Theory of Solutions of Molecules Containing Widely Separated Charges with Special Application to Zwitterions
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DOI：
10.1063/1.1749489
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发表时间：
1934-07-01
影响因子：
4.4
通讯作者：
Kirkwood, John G.
中科院分区：
文献类型：
--
作者：
Kirkwood, John G.
本文用德拜-休克尔理论计算了具有任意电荷分布的离子对化学势的电贡献。该计算基于近似Debye-Huckel方程的极坐标中的一般解，Δ psi-kappa（2）psi = 0。此外，玻恩之间的关系的自由能溶剂化的球形离子和溶剂的介电常数，被推广到包括离子的任意电荷分布。应用该理论研究了简单电解质的影响，以及溶剂的介电常数对脂肪族氨基酸在醇-水混合物中的溶解度的影响。
The electrical contribution to the chemical potential of an ion having an arbitrary charge distribution is calculated with the aid of the Debye-Huckel theory. The calculation is based upon a general solution in polar coordinates of the approximate Debye-Huckel equation, Delta psi-kappa(2)psi = 0. In addition, the Born relation between the free energy of solvation of a spherical ion and the dielectric constant of the solvent, is generalized to include ions of arbitrary charge distribution. Application of the theory to a study of the influence of simple electrolytes, and of the dielectric constant of the solvent on the solubilities of the aliphatic amino-acids in alcohol water mixtures, is discussed.