g Factors and the tetragonal distortion of ligand octahedron for Co2+ in Rb2MgF4 crystal
文献类型：期刊论文
| 作者 | W. C. Zheng ; S. Y. Wu |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2000 |
| 卷号 | 56期号:11页码:2061-2066 |
| 关键词 | cluster structure in molecular electron paramagnetic resonance (EPR) optical spectra crystal- and ligand-field Rb2MgF4 Co2+ superposition model resonance centers mn2+ cr3+ ions |
| ISSN号 | 1386-1425 |
| 中文摘要 | The calculation formulas of g-factors g(parallel to) and g(perpendicular to) for 3d(7) ion in tetragonal octahedral crystals are established from a cluster approach. In these formulas, the parameters related to covalency effect, configuration interaction and low-symmetry crystal field can be determined from the optical spectra and the structural data of the studied system. Based on these formulas, the structural parameters of ligand octahedra of Co2+ in Rb2MgF4 crystal are obtained by fitting the calculated g(parallel to) and g(perpendicular to) to the observed values. The result suggests that the CoF6 (and hence MgF6) octahedra in Rb2MgF4:Co2+ are tetragonal compressed. The relationship between the sign of Delta g( = g(perpendicular to) - g(parallel to)) and the sign of distortion (elongated or compressed) of ligand octahedron and the causes of the mistakes of octahedron distortion for Rb2MgF4:Co2+ in the previous papers are discussed. (C) 2000 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37283]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. C. Zheng,S. Y. Wu. g Factors and the tetragonal distortion of ligand octahedron for Co2+ in Rb2MgF4 crystal[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2000,56(11):2061-2066. |
| APA | W. C. Zheng,&S. Y. Wu.(2000).g Factors and the tetragonal distortion of ligand octahedron for Co2+ in Rb2MgF4 crystal.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,56(11),2061-2066. |
| MLA | W. C. Zheng,et al."g Factors and the tetragonal distortion of ligand octahedron for Co2+ in Rb2MgF4 crystal".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 56.11(2000):2061-2066. |
入库方式： OAI收割
来源：金属研究所
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