EPR and bonding parameters of copper complexes in cadmium maleate dihydrate host crystal
作者:
Prem Chand,
R.S. Bansal,
V.P. Seth,
期刊:
Radiation Effects and Defects in Solids
(Taylor Available online 1992)
卷期:
Volume 124,
issue 4
页码: 417-427
ISSN:1042-0150
年代: 1992
DOI:10.1080/10420159208228868
出版商: Taylor & Francis Group
关键词: EPR;cadmium maleate;copper complexes;bonding parameters
数据来源: Taylor
摘要:
Temperature dependence of EPR of copper doped Cadmium Maleate Dihydrate has been studied in detail. Cupric ion is found to form a square planar complex with oxygens, at a unique interstitial site in the host lattice. The hyperfine interaction andgtensors are co-axial and temperature dependent. The temperature dependence of linewidth indicates a rapid relaxation at room temperature as compared to low temperatures. A detailed analysis of EPR data places the unpaired electron in the |x2-y2⟩ ground state orbital. The bonding parameters indicate that for the copper complex in question, the in-plane σ and π bondings are covalent in nature, whereas the out-of-plane π bonding is essentially ionic.
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