Lanthanide luminescence efficiency in eight- and nine-coordinate complexes: Role of the radiative lifetime
- Authors
- Buenzli, Jean-Claude G.; Chauvin, Anne-Sophie; Kim, Hwan Kyu; Deiters, Emmanuel; Eliseeva, Svetlana V.
- Issue Date
- 11월-2010
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Lanthanide; Luminescence; Nine-coordination; Eight-coordination; Mononuclear; Binuclear; Helicate; Radiative lifetime; Quantum yield; Sensitization efficiency
- Citation
- COORDINATION CHEMISTRY REVIEWS, v.254, no.21-22, pp.2623 - 2633
- Indexed
- SCIE
SCOPUS
- Journal Title
- COORDINATION CHEMISTRY REVIEWS
- Volume
- 254
- Number
- 21-22
- Start Page
- 2623
- End Page
- 2633
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115381
- DOI
- 10.1016/j.ccr.2010.04.002
- ISSN
- 0010-8545
- Abstract
- The photophysical parameters for the sensitization of metal-centred luminescence are analyzed in two series of complexes with tridentate and hexadentate ligands having NxOy chelating units. In particular, the radiative lifetime tau(rad) is experimentally estimated for 29 nine-coordinate Eu-III complexes and 10 eight- and nine-coordinate Yb-III complexes. The known dependence of tau(rad) on refractive index is sub-stantiated by comparing data for solid-state samples and solutions. Moreover, a clear dependence of tau(rad) with the coordination environment is evidenced and in the case of Eu-III, a comparison between tau(rad) and the nephelauxetic effect generated by the ligands is attempted. Altogether, this extensive analysis points to the importance of having a handle on tau(rad) when designing ligands for highly luminescent lanthanide-containing molecular edifices. This, in turn, should stimulate initiating theoretical considerations to unravel a reliable relationship between tau(rad) and the electronic structure of the ligands. (C) 2010 Elsevier B.V. All rights reserved.
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Collections - Graduate School > Department of Advanced Materials Chemistry > 1. Journal Articles
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