论文部分内容阅读
一、前言物质的红外光谱与其分子结构有密切关系,分析其红外光谱图,可以确定物质分子的一些结构性质和统计热力学性质。本文用日立—295型红外分光光度计,选择适宜的制样方法和工作条件,测绘出 CO、HCl、HBr 等异核双原子分子的高分辨红外光谱,通过光谱理论分析,计算出它们的分子转动常数;平均核间距;转动惯量;伸缩振动常数;振动配分函数;摩尔振动能;振动热容量等。
I. Introduction The infrared spectrum of a substance is closely related to its molecular structure. Analyzing its infrared spectrum can determine some structural properties and statistical thermodynamic properties of the material molecule. In this paper, Hitachi-295 infrared spectrophotometer, select the appropriate sample preparation methods and working conditions, mapping out the CO, HCl, HBr and other heteronuclear diatomic molecules of high-resolution infrared spectroscopy, calculated by spectroscopic analysis of their molecules Rotational constant; Average nuclear spacing; Moment of inertia; Telescopic vibration constant; Vibration distribution function; Molar vibration energy; Vibrational heat capacity.