原子折射度与极性的关系

原子折射度与极性的关系 THE RELATION BETWEEN ATOMIC REFRACTION AND POLARITY 杨进元 Yang Jinyuan 1 first-author 郑州大学化学系 郑州大学化学系 Department of Chemistry, Chengchow University Department of Chemistry, Chengchow University 原子折射度是光引起的原子内电子的极化率。其实质就是核电荷与电子之间的相对移动性。移动性越大,原子折射度也越大。由于近核处电子的势能远比各外层的电子的势能大得多,它们的这种移动性自然也就比各外层的电子小得多。因此,元素的原子折射度应由外层电子构型、原子体积和有效极化力决定。其关系式是:（n/R+1） 1/2 =aZ * /r 2 +b(n=n s.p +0.1n d +0.21nf) 利用上式,计算了周期表中所有元素的原子折射度。对于非金属元素,与实验值、slateret al.量子力学及Eisenlohr et al.所建立的原子折射度系统均很一致。对于金属元素,也与及杨频值相接近。 An atomic refraction is a polarizability that is Produced by light in atom which contains the electrons. It is also actualy a migration between the positive charges and negative charges in atom. Therefore, there have threse effect on the atomic refraction, namely: the outermost shell electronic configurations, atomic volume, the effective polarized force. Based on those idea, we proposed the following empiric formula: （n╱（R+1）） 1╱2 =a（Z * ）╱（r 2 ）+b (n=n s.p +0.1n d +0.21nf)（2） the above formala may be applied to all elements in Periodic table. The atomic refractions for elements are very good agreement with other authors. So the formala Proposed here is extensive, simple and workable. 1984-01-01 2021-04-01 1