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Luminescent Materials of Europium(III) Coordinated by a Terpyridine‐Functionalized Poly(Ionic Liquid)
Author(s) -
Ru Qiaorong,
Xue Zhxin,
Wang Yige,
Liu Yamei,
Li Huanrong
Publication year - 2014
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.201301168
Subject(s) - terpyridine , europium , chemistry , luminescence , monomer , ionic liquid , ionic bonding , polymerization , polymer chemistry , polymer , photochemistry , inorganic chemistry , ion , organic chemistry , materials science , catalysis , optoelectronics , metal
A new poly(ionic liquid) (Terpy‐PIL) carrying a terpyridine group in each repeating unit of the polymer architecture was readily prepared by polymerization of the monomer (Terpy‐IL), which was initiated by azobis(isobutyronitrile) (AIBN). The obtained poly(ionic liquid) can coordinate and sensitize europium(III) ions through numerous chelating terpyridine moieties, which are linked to the polymer chains. A red‐emitting luminescent material was obtained by the complexation of europium(III) salts with Terpy‐PIL, and the luminescence is due to an energy transfer from the terpyridine moieties to Eu 3+ ions. The luminescence performance of the luminescent material based on Terpy‐PIL, for example the 5 D 0 quantum efficiency and the decay time, is much higher than that of the luminescent material prepared from the monomer Terpy‐IL, which can be ascribed to the confinement of the europium(III)–terpyridine complexes to the polymer architecture.