A Ligand-Field Analysis of the trensal (H3trensal = 2,2',2' '-Tris(salicylideneimino)triethylamine) Ligand. An Application of the Angular Overlap Model to Lanthanides
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- 作者：Bernadine M. Flanagan ; Paul V. Bernhardt ; Elmars R. Krausz ; Stefan R. Lü ; thi ; and Mark J. Riley
- 刊名：Inorganic Chemistry
- 出版年：2002
- 出版时间：October 7, 2002
- 年：2002
- 卷：41
- 期：20
- 页码：5024 - 5033
- 全文大小：179K
- 年卷期：v.41,no.20(October 7, 2002)
- ISSN：1520-510X
文摘
The spectral and geometric trends of Ln(trensal) complexes (H3trensal = 2,2',2' '-tris(salicylideneimino)triethylamine)along the lanthanide series are analyzed. Low-temperature polarized absorption and luminescence spectra arereported for nine of the complexes with transitions suitable for analysis. Both the angular and radial geometryvariations as a function of the lanthanide ion are quantified. The structural parameters are related to the trend inthe ligand field found from an analysis of the f-f transitions. The ligand-field analysis is fitted globally across thewhole series accounting for the contraction of the f orbitals as a function of atomic number. This study establishesthe utility of describing the ligand field of f electrons within the one-electron operator approach of the angularoverlap model.