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Europium‐Based Ionic Liquids as Luminescent Soft Materials
Author(s) -
Tang Sifu,
Babai Arash,
Mudring AnjaVerena
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801159
Subject(s) - europium , lanthanide , luminescence , ionic liquid , c4mim , ionic bonding , ionic compound , ion , emission spectrum , materials science , photochemistry , chemistry , inorganic chemistry , spectral line , optoelectronics , organic chemistry , catalysis , physics , astronomy
Low melting, highly luminescent : [C 3 mim][Eu(Tf 2 N) 4 ] ( 1 ), [C 4 mim][Eu(Tf 2 N) 4 ], and [C 4 mpyr] 2 [Eu(Tf 2 N) 5 ] are the first lanthanide ionic liquids that do not need stabilization of the liquid state by neutral coligands. They show excellent photophysical properties, such as long lifetimes of luminescence at large Eu III concentration, small line width, and high color purity (see emission spectrum of 1 and photograph of a sample under UV light).