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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Ag L3-Edge X-ray Absorption Near-Edge Structure of 4d10 (Ag+) Compounds: Origin of the Edge Peak and Its Chemical Relevance
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Ag L3-Edge X-ray Absorption Near-Edge Structure of 4d10 (Ag+) Compounds: Origin of the Edge Peak and Its Chemical Relevance

机译：4d10（Ag +）化合物的Ag L3-边缘X射线吸收近边缘结构：边缘峰的起源及其化学相关性

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摘要

A peak appearing at the L2,3 X-ray absorption edge often provides the number of empty d states of the X-ray absorbing atoms. Ag+ compounds have a d10 state (no d empty states) but show a small peak at the edge. In this research, we systematically studied the edge peak of Ag+ compounds to understand its origin on the basis of the molecular orbital picture and to obtain a relation of the edge peak intensity to chemical and physical quantities. The edge peak can be formally assigned to the transition from 2p to 5s enhanced by the s-d hybridization. The peak intensity has a negative correlation with a coordination charge but has a positive correlation with the strength of the covalent bond, which is in the reverse order to the other dn (n < 10) elements.
机译：出现在L2,3 X射线吸收边缘的峰通常提供X射线吸收原子的空d态数。 Ag +化合物具有d10状态（无d空状态），但在边缘显示一个小峰。在这项研究中，我们系统地研究了Ag +化合物的边缘峰，以根据分子轨道图了解其起源，并获得边缘峰强度与化学和物理量的关系。边缘峰可以正式分配给通过s-d杂交增强的从2p到5s的过渡。峰值强度与配位电荷呈负相关，但与共价键的强度呈正相关，这与其他dn（n <10）元素的顺序相反。

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