Nephelauxetic Effect of Electronic Cloud for Energy Levels of  4f75d  Configuration of Tb3+ in Crystals

Chem. J. Chinese Universities

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Nephelauxetic Effect of Electronic Cloud for Energy Levels of 4f⁷5d Configuration of Tb³⁺ in Crystals

SHI Jin-Sheng^1*; QU Dan¹; ZHANG Si-Yuan²

1. Laiyang Agricultural College, Qingdao 266109, China;
2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences,
Changchun 130022, China

Received:2005-08-10 Revised:1900-01-01 Online:2006-07-10 Published:2006-07-10
Contact: SHI Jin-Sheng

Abstract

Abstract: In this paper, the nephelauxetic effect of 5d levels of Tb³⁺ was considered. By using the rare-earth spectroscopy theory, the nephelauxetic effect ratio β was related to the energy difference between the spin-allowed fd and the spin-forbidden states of Tb³⁺ ion. By means of the chemical bond theory of complex crystals, a linear relationship between the nephelauxetic effect ratio β with the covalency, volume polarization of the chemical bond between the Tb³⁺ ion and the nearest anion, and charge presented by the nearest anion was obtained. In addition, a factor exhibiting the effect of Tb ³⁺ ion on β was presented.

Key words: Tb³⁺ ion, Nephelauxetic effect of electronic cloud, Chemical bond, Covalency

CLC Number:

O641

TrendMD:

SHI Jin-Sheng^1*; QU Dan¹; ZHANG Si-Yuan². Nephelauxetic Effect of Electronic Cloud for Energy Levels of 4f⁷5d Configuration of Tb³⁺ in Crystals[J]. Chem. J. Chinese Universities, doi: .

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Nephelauxetic Effect of Electronic Cloud for Energy Levels of 4f⁷5d Configuration of Tb³⁺ in Crystals

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