溶剂对分子转动弛豫过程的影响  

Effect of Solvents on the Molecular Rotation Relaxation Process

作　　者：李湘正 郭础[1] 

机构地区：[1]北京理工大学应用物理系

出　　处：《北京理工大学学报》1992年第1期34-39,共6页Transactions of Beijing Institute of Technology

摘　　要：利用分广的各向异性对分子的整体转动进行了分析.通过测量在不同温度和不同溶剂中转动弛豫时间常数,发现即使在粘度(η)与温度(T)之比值相同下,在不同种类的醇溶剂中得到的转动弛豫时间常数不同,这是由于溶剂和分子的氢键在不同溶剂中的结合强度不同造成分子在不同溶剂中的转动体积有差别。An analysis of the process of molecular rotation by way of molecular anisotropy is here presented. In measuring the rotation relaxation time constant at different temperatures and in the presence of different solvents it has been discovered that the rotation relaxation time constant proved to be different in different solvents, despite the same n/T.This happens because difference in the strength of the hydrogen bonds in different solvents results in differences in the molecular rotation volumes in different solvents.

关 键 词：驰豫时间 转动体积 溶剂 分子 

分 类 号：O561.1[理学—原子与分子物理]