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Visible‐Light Excitation of Infrared Lanthanide Luminescence via Intra‐Ligand Charge‐Transfer State in 1,3‐Diketonates Containing Push‐Pull Chromophores
Author(s) -
Shavaleev Nail M.,
Scopelliti Rosario,
Gumy Frédéric,
Bünzli JeanClaude G.
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200701197
Subject(s) - chemistry , lanthanide , luminescence , chromophore , photochemistry , ligand (biochemistry) , nitrobenzene , acceptor , visible spectrum , infrared , ion , optoelectronics , organic chemistry , optics , condensed matter physics , catalysis , biochemistry , physics , receptor
A new 1,3‐diketonato ligand containing both an electron‐donor [4‐(dimethylamino)benzene] and an electron‐acceptor (4‐nitrobenzene) group and its lanthanide complexes have been prepared. They display an intense intra‐ligand charge‐transfer absorption transition in the visible region of the spectrum at 400–550 nm which was utilized to achieve visible‐light excitation of metal‐centred infrared luminescence of Nd III , Er III and Yb III ions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)