利用扩展 X 射线吸收精细结构数据分析铜 (II) 混合配体配合物

IF 0.9 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER Physics of the Solid State Pub Date : 2024-10-02 DOI:10.1134/S1063783424600870
Sudhir Sawasiya, Pramod Kumar Malviya
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引用次数: 0

摘要

研究了铜(II)配合物中铜的 K 边 X 射线吸收精细结构(XAFS):Cu(L1)2Cl2-2H2O (1)、Cu(L2)2SO4-5H2O (2)、Cu(L3)2SO4-5H2O (3) 和 Cu(L4)2SO4-5H2O (4),其中 L1 = 水杨醛苯甲酰肼 (SBH),L2 = 5-硝基 SBH,L3 = 5-甲基 SBH,L4 = 5-溴 SBH。在印度印多尔 RRCAT 的 Indus-2 建立的 2.5 GeV Cu K-Edge EXAFS 光束线(BL-09)被用来描述这些数据。利用已公布的这些复合物的晶体结构,分别创建了理论模型。通过将这些理论模型与相应的 EXAFS 实验数据进行拟合,确定了配位数和键长等结构特征。傅立叶变换中第一个峰的位置以及 Levy、Lytle 和 L.S.S. 的图形技术提供了第一壳键长的值。研究中复合物的键长是通过 Levy、Lytle 和 L.S.S. 方法实验确定的。将这些方法的结果与理论方法的结果进行了比较。
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Analysis of Copper (II) Mixed Ligand Complexes Using Extended X-ray Absorption Fine Structure Data

X-ray absorption fine structure (XAFS) has been studied at the K-edge of copper in copper(II) complexes: Cu(L1)2Cl2·2H2O (1), Cu(L2)2SO4·5H2O (2), Cu(L3)2SO4·5H2O (3) and Cu(L4)2SO4·5H2O (4), where L1 = salicylaldehyde benzoyl hydrazine (SBH), L2 = 5-nitro SBH, L3 = 5-methyl SBH, and L4 = 5‑bromo SBH. Cu K-Edge EXAFS beamline (BL-09) at 2.5 GeV established at Indus-2, RRCAT, Indore, India, was used to describe the data. Using the published crystal structures of each of these complexes, theoretical models have been created individually. Coordination numbers and bond length are among the characteristics of the structural that have been identified by fitting these theoretical models to the corresponding experimental EXAFS data. The first peak’s position in the Fourier transform, as well as the graphical technique of Levy, Lytle, and L.S.S., provide the value of the first shell bond length. The bond lengths of the complexes in study have been experimentally determined using the Levy, Lytle, and L.S.S. approach. These approaches’ outcomes have been compared to those of a theoretical approach.

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来源期刊
Physics of the Solid State
Physics of the Solid State 物理-物理:凝聚态物理
CiteScore
1.70
自引率
0.00%
发文量
60
审稿时长
2-4 weeks
期刊介绍: Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.
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