Further studies on the properties and effect of high energetic ionizing radiation on copper(II) complexes: 1H NMR, electronic absorption, ESR spectra and solid electrical conductivity

被引：0

作者：

M. M. Abou Sekkina

H. A. El-Boraey

S. A. Aly

机构：

[1] Tanta University,Department of Chemistry, Faculty of Science

[2] El-Menoufia University,Department of Chemistry, Faculty of Science

[3] El-Menoufia University,Genetic Engineering and Biotechnology Research Institute

[4] El-Kaseem University,Department of Chemistry, Faculty of Science

来源：

Journal of Radioanalytical and Nuclear Chemistry | 2014年 / 300卷

关键词：

γ-Irradiation; H NMR; Electronic absorption; ESR spectra; DTA; Solid electrical conductivity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of energetic γ-radiation on 1H NMR, electronic absorption, ESR spectra, differential thermal analysis (DTA) and solid state dc electrical conductivity of the ligand N-phenyl-2-(2-(phenylamino)acetyl)hydrazine carbothioamide (H2L) and its copper(II) complexes; Cu(HL)(OAc)H2O, Cu(HL)BrH2O and Cu(H2L)2(NO3)2⋅3H2O before and after γ-irradiation (hereafter referred to as (B), (B1), (B2), (B3) and (A), (A1), (A2), (A3), respectively) has been studied. Electronic spectral bands of the complexes after irradiation exhibited some better resolved shapes with a remarkably higher absorbance, ESR spectrum of complex Cu(HL)BrH2O (B2) before irradiation showed isotropic spectrum with giso = 2.075 however, after irradiation (A2) displayed axial ESR spectrum with g∥ > g⊥ > 2.0023 and d(x2−y2) ground state. DTA of the compounds reveals that γ-irradiation induced generation of new peaks as well as changes in the peak intensities. Solid state dc electrical conductivity for complexes was investigated before and after γ-irradiation. Complexes were found to be semiconductors, the activation energies (Ea) were calculated for the complexes by using the Arrhenius plot.

引用

页码：867 / 872

页数：5

共 70 条

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