Highly luminescent lanthanide complexes of 1-hydroxy-2-pyridinones

Moore, Evan G., Xu, Jide, Jocher, Christoph J., Castro-Rodriguez, Ingrid and Raymond, Kenneth N. (2008) Highly luminescent lanthanide complexes of 1-hydroxy-2-pyridinones. Inorganic Chemistry, 47 8: 3105-3118. doi:10.1021/ic702144n


Author Moore, Evan G.
Xu, Jide
Jocher, Christoph J.
Castro-Rodriguez, Ingrid
Raymond, Kenneth N.
Title Highly luminescent lanthanide complexes of 1-hydroxy-2-pyridinones
Journal name Inorganic Chemistry   Check publisher's open access policy
ISSN 0020-1669
1520-510X
Publication date 2008-04-21
Year available 2008
Sub-type Article (original research)
DOI 10.1021/ic702144n
Volume 47
Issue 8
Start page 3105
End page 3118
Total pages 14
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
Formatted abstract
The synthesis, X-ray structure, stability, and photophysical properties of several trivalent lanthanide complexes formed from two differing bis-bidentate ligands incorporating either alkyl or alkyl ether linkages and featuring the 1-hydroxy-2-pyridinone (1,2-HOPO) chelate group in complex with Eu(III), Sm(III), and Gd(III) are reported. The Eu(III) complexes are among some of the best examples, pairing highly efficient emission (ΦtotEu ~ 21.5%) with high stability (pEu ~ 18.6) in aqueous solution, and are excellent candidates for use in biological assays. A comparison of the observed behavior of the complexes with differing backbone linkages shows remarkable similarities, both in stability and photophysical properties. Low temperature photophysical measurements for a Gd(III) complex were also used to gain insight into the electronic structure and were found to agree with corresponding time-dependent density functional theory (TD-DFT) calculations for a model complex. A comparison of the high resolution Eu(III) emission spectra in solution and from single crystals also revealed a more symmetric coordination geometry about the metal ion in solution due to dynamic rotation of the observed solid state structure.
Keyword Lanthanide
Pyridines
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Published online 1 March 2008

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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Created: Mon, 09 Sep 2013, 10:25:06 EST by Evan Moore on behalf of School of Chemistry & Molecular Biosciences