Ag L-3-Edge X-ray Absorption Near-Edge Structure of 4d(10) (Ag+) Compounds: Origin of the Edge Peak and Its Chemical Relevance

作者：Miyamoto Takeshi; Niimi Hironobu; Kitajima Yoshinori; Naito Toshio; Asakura Kiyotaka^*

来源：Journal of Physical Chemistry A, 2010, 114(12): 4093-4098.

DOI：10.1021/jp907669s

A peak appearing at the L-2,L-3 X-ray absorption edge often provides the number of empty d states of the X-ray absorbing atoms. Ag+ compounds have a d(10) 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 oil 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 call be formally assigned to the transition from 2p to 5s enhanced by the s-d hybridization. The peak intensity has a negative correlation with I coordination charge but has a positive correlation with the strength of the covalent bond, which is in the reverse order to the other d(n) (n < 10) elements.

• 出版日期2010-4-1