氢化物中A－H键物理化学性质递变规律的研究Ⅱ．A－H键伸缩力常数K_（A－H）的计算  

A STUDY ON THE LAW OF ALTERATION CONCERNING PHYSICAL AND CHEMICAL PROPERTIES OF A-H BONDS IN HYDRIDES──How to calculate the stretching force constants of A-H bonds

作　　者：周有恒 余训民 

机构地区：[1]湖北荆州教育学院

出　　处：《荆州师专学报》1994年第2期53-56,共4页

摘　　要：本文在分析共价氢化物Ｙ_ｍＡ－Ｈ分子中Ａ－Ｈ键伸缩力常数Ｋ_（Ａ－Ｈ）变化规律的基础上，经过理论证明，提出了一个新的计算Ｋ_（Ａ－Ｈ）的公式：，并用新方法计算了一些共价氢化物的Ｋ_（Ａ－Ｈ）值，结果与实验值相当一致，说明新公式是可靠的。After a through study on the previous work, we make a comprehensive analysis on the law of alteration concerning the stretching force constant of A-H bond of hydride as follows:K=3.6984. Where XA and XH are the electronegativites of A and H atoms respectively,rA-H are the covalent radius of A-H bonds. The stretching force constants of A-H bonds of 34 Hydrides are calculated by the equation. The results calculated showed that the predicted values agreed with the experimental values satisfactorily.

关 键 词：伸缩力常数 原子有效核电菏 电负性 基频 A-H键 氢化物 

分 类 号：O613.2[理学—无机化学]