MELTING-POINT, BOILING-POINT, AND SYMMETRY

被引：88
作者：
ABRAMOWITZ, R
YALKOWSKY, SH
机构：
[1] UNIV ARIZONA,COLL PHARM,TUCSON,AZ 85721
[2] OREGON STATE UNIV,COLL PHARM,CORVALLIS,OR 97331
来源：
PHARMACEUTICAL RESEARCH | 1990年 / 7卷 / 09期
关键词：
boiling point; symmetry; melting point; solubility;
D O I：
10.1023/A:1015949907825
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The relationship between the melting point of a compound and its chemical structure remains poorly understood. The melting point of a compound can be related to certain of its other physical chemical properties. The boiling point of a compound can be determined from additive constitutive properties, but the melting point can be estimated only with the aid of nonadditive constitutive parameters. The melting point of some non-hydrogen-bonding, rigid compounds can be estimated by the equation MP = 0.772 * BP + 110.8 * SIGMAL + 11.56 * ORTHO + 31.9 * EXPAN − 240.7 where MP is the melting point of the compound in Kelvin, BP is the boiling point, SIGMAL is the logarithm of the symmetry number, EXPAN is the cube of the eccentricity of the compound, and ORTHO indicates the number of groups that are ortho to another group. © 1990, Plenum Publishing Corporation. All rights reserved.
引用
收藏
页码：942 / 947
页数：6
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