摘要
应用气液色谱和分子模型相结合的方法,研究了各种化合物之间的分子间引力,发现在某些分子上可含有几个略带正电荷的氢原子所构成的正电集团,或几个带负电的原子所构成的负电集团,或由正负中心所构成的正负集团。当二分子上的集团结构互相适应(电子性质适应和空间结构适应)时,此等集团之间即可呈现出很强的作用力且有很高的选择性,从而导致许多物理性质的反常现象。
Up to date,the orders of many physical properties,such as reduced retention time on gas chromatography,solubilities,solvation,boiling points,etc.cannot be explained satisfactorily with the dipole moment,polarizibility and molecular weight of the molecule as well as the consideration of the formation of hydrogen bond and electron-transfer complex.It is caused by the selectivity of intermolecular force,in other words,by the presence of some unknown specific interaction between the molecules,described by many authors.The authors have investigated the intermolecular forces among various compounds,by applying the combined method of gas chromatography and molecular models.The observed results show that the presence of the strengthening interaction between the adaptable groups existing on the different compounds respectively.The molecules may contain various groups constituted by either severalpositive-charged H atoms(such as-CH3,in hexachlorocyclohexane,in bipyridine)or several negative-charged atoms(such as)as well as the groups formed by positiveand negative centers(such as).As the structures of groups(including electronic and steric effects)are very adaptable to each other,the interaction between the adaptable groups on two molecules respectively will greatly strengthen the intermolecular forces and show its selectivity,which induces many abnormal orders of reduced retention time on gas chromatography and other physical properties.From this point of view,the authors have interpreted the heat of solution and the solubilities of the isomers of C6H6Cl6in many solvents,and discussed the properties of some polymer solution and the effects of solvent on the reaction rate in another papers.
作者
金松寿
唐新硕
Jin Songshou;Tang Xinshuo(Department of Chemistry,Hangzhou University,Hangzhou)
出处
《高等学校化学学报》
SCIE
EI
CAS
1981年第1期77-88,共12页
Chemical Journal of Chinese Universities
