The relationship between bond valence and bond covalency has been investigated by a semiempirical method.

一种半经验方法研究了固体材料中键电荷与键共性关系。

A method to calculate new valence electronegativity and the ionicity of chemical bond of the transition metal elements is also presented here.

提出了计算过渡态共半径公式;提出了计算过渡态电负性和化学键离子性方法。

The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures.

最方法是通过端羧酸基纳米结构二酰亚胺活化氨基化合物来进行生物分子与1-D纳米结构共结合。