ligand K-edge XASphosphorus ligandphosphineXANESPhosphorus K-edge X-ray absorption spectroscopy (XAS) is a highly effective experimental method for investigating metal-phosphorus bonding and electronic structure. Here, we provide a comprehensive review of P K-edge XAS studies of transition metal ...
phosphineXANESDespite the long-standing use of phosphine and diphosphine ligands in coordination chemistry and catalysis, questions remain as to their effects on metal–ligand bonding in transition metal complexes. Here we report ligand K-edge XAS, DFT, and TDDFT studies aimed at quantifying the ...
X-ray absorption spectroscopy (XAS) becomes one of the important techniques to characterize the active metal site of crystalline or non-crystalline materials. The x-ray absorption near structure (XANES) of Fe K-edge is often used to monitor the variation of the oxidation states and the local ...
The local environment of sulfur in amorphous As2S3 Sb2S3 Tl2S was studied by XAS at the sulfur K-edge. Variations in shape and position of the white line are attributed to changes in the nature of the chemical bond, the metal sulfur bond lengths, and the homogeneity of the metal sulfur...
Silicon K-edge XANES spectra of silicate minerals 下载积分: 6990 内容提示: Phys Chem Minerals (1995) 22:115-122 PHNICS CHEMISTRY MINERALS ?9 Springer-Verlag 1995 Silicon K-edge XANES Spectra of Silicate Minerals Dien Li 1, G.M. Bancroft 1 M.E. Fleet 2, X.H. Feng 3 i Department of ...
对于许多XAS数据,其扩展边可能数据质量较差,使得拟合的可信度有时候值得商榷。而XANES一般有足够高的信号质量,并且具有许多指纹信息,可以给出更加丰富的信息。其中最简单也最常见的要数价态分析。如图5所示,不同价态的MoOx标样的K-edge吸收边的位置不同,...
在这篇文章中,我们将探讨k边扩展X射线吸收精细结构谱(k-edge EXAFS spectrum)的傅里叶变换。 首先,让我们先了解一下k边EXAFS谱是什么。k边EXAFS谱是一种利用X射线吸收光谱(X-ray Absorption Spectroscopy,XAS)研究材料的谱学技术。它通过测量材料对X射线吸收的辐射产生的光谱,对材料的结构和成分进行表征和分析。
Systematic Mn d-configuration change in the La1-xCaxMnO3 system: A Mn Kedge XAS study Kedge Business School : Ecole de Commerce et Management Size-dependent Kedge EXAFS study of the structure of free Ar clusters Coordination of Ti in crystalline and glassy fresnoites: A high-resolution XANES...
Ni K-edge XAS data is consistent with Ni(II) ligated by five N/O based ligands (three N/O ligands at 2.01(2) Angstrom and two at 1.855(2) Angstrom). We were also able to locate a Ni-Ni vector at 3.1(1) Angstrom, which suggests the two Ni(II) centers are contained in a bis...
In situ Mn K-edge fluorescence X-ray absorption spectroscopy (XAS) was used to analyze the manganese oxides electrodeposited on a porous carbon paper subst... KW Nam,MG Kim,KB Kim - 《Journal of Physical Chemistry C》 被引量: 123发表: 2007年 Sulfur K-Edge X-ray Absorption Spectroscopy of...