关于晶体的组成、原子的配位数和Pauling第二规则之间关系的研究

A STUDY ON THE RELATIONSHIP BETWEEN COORDINATION NUMBERS,CRYSTAL COMPOSITION,AND PAULING'S SECOND RULE

本文系统地考察了晶体的组成(组分数β=2,β=3,β≥4)与配位数之间的关系.提出了配位平衡方程和电子平衡方程。分析了A_xB_y、A_xB_yC_z和A_xB_yC_zD_w等型式的晶体,给出了晶体的组成与配位数相互联系的规律。将此规律应用于离子晶体,推算出原子的配位数和它们在周期表族的编号之间的关系。在配位平衡方程与电子平衡方程的基础上,导出了Pauling由经验得到的静电键规则—Pauling第二规则。

A study was made of the relationship between coordination numbers and crystalcomposition(component numbers:β=2,β=3,and β≥4).We put forward coordi-nation equilibrium equations and electron equilibrium equations.Crystal of thetype A_xB_y,A_xB_yC_z and A_xB_yC_zD_w,were analyzed.Rule are given relating thecrystal structure and coordination numbers.The coordination equilibrium and electron equilibrium method was applied to ionic crystals.A relation is established between the crystal coordination numbersand the periodic gronup number.The Pauling's second rule was deduced from thecoordination equilibrium equation and the electron equilibrium equation and a gen-eralized form is given.