Studies of the EPR g factor for Ni2+ ion in CsMgX3 (X = Cl, Br, I) crystals
文献类型：期刊论文
| 作者 | W. C. Zheng ; X. X. Wu |
| 刊名 | Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
 |
| 出版日期 | 2006 |
| 卷号 | 64期号:3页码:628-630 |
| 关键词 | Electron paramagnetic resonance CsMgX3 (X = Cl Charge transfer mechanism Br Crystal- and I) ligand-field theory Ni2+ paramagnetic-resonance parameters atomic screening constants scf functions csmgbr3 spectra |
| ISSN号 | 1386-1425 |
| 中文摘要 | The complete high-order perturbation formula of g factor, including not only the widely used crystal-field (CF) mechanism, but also the neglected change-transfer (CT) mechanism in the CF theory, is established for a 3d(8) ion in cubic octahedral site. From the formula, the g-shifts Delta g (=g - gs, where gs approximate to 2.0023, the value of free electron) of Ni2+ ion in CsMgX3 (X = Cl, Br, I) crystals are calculated. The results suggest that the g-shift Delta gCT due to the CT mechanism and the Delta gCF due to CF mechanism have the same sign and the importance of Delta gCT follows the order: CsMgI3: Ni2+ > CsMgBr3: Ni2+ > CsMgCl3: Ni2+. So, in the calculations of g or Delta g of 3d(n) MXm clusters in crystals, the contributions to g factor from both the CT and CF mechanisms should be taken into account in the case of heavy-element ligand ions, such as Br- and I- ions. (c) 2005 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34757]  |
| 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,X. X. Wu. Studies of the EPR g factor for Ni2+ ion in CsMgX3 (X = Cl, Br, I) crystals[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2006,64(3):628-630. |
| APA | W. C. Zheng,&X. X. Wu.(2006).Studies of the EPR g factor for Ni2+ ion in CsMgX3 (X = Cl, Br, I) crystals.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,64(3),628-630. |
| MLA | W. C. Zheng,et al."Studies of the EPR g factor for Ni2+ ion in CsMgX3 (X = Cl, Br, I) crystals".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 64.3(2006):628-630. |
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来源：金属研究所
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