论文部分内容阅读
Pauling曾对过渡族金属的成鍵电子数与原子間結合力的关系进行过系統的分析,并提出了他的价数系統,后来为Hume-Rothery等人修改,有一定貢献.但他們的分析尚有若干不全面和不妥当的地方.本文的目的就是要来进一步分析这个問題,除評論他們的分析外,简要提出作者自己的一些看法,并另提出一个新的价数系統.作者試图从原子的电子結構出发来探討价数与原子間結合力的問題,并对原子間結合力的形成得出这样的原則:結合力的大小不仅决定于参加成鍵的电子数,尚应与这些成鍵电子对內对外的联系情况有关,若它們对內联系既强,而电子云的重迭程度又大,则原子間結合力就强.应用这个原則,我們能对銅、銀、金的結合力問題給以比过去更为适当的解釋.
Pauling has systematically analyzed the relationship between the number of transitional metals and the binding power between atoms and proposed his valence system, which later contributed some modifications to Hume-Rothery et al. However, their analysis There are a number of incomplete and inappropriate places.The purpose of this article is to further analyze this issue, in addition to commenting on their analysis, briefly presenting some of the author’s own views and proposing a new valence system. Starting from the electronic structure of the atom to explore the valence and the binding force between atoms, and the formation of binding forces between atoms come to the principle that the size of the binding force not only depends on the number of electrons participating in bonding, should still be with these Bond electrons are related to the internal and external relations, if they are both strong internal relations, and the degree of overlap of the electron cloud is large, the stronger the binding force between atoms. Using this principle, we can copper, silver, gold The issue of cohesion gives a more appropriate explanation than in the past.