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The First Europium(III) β‐Diketonate Complex Functionalized Polyhedral Oligomeric Silsesquioxane
Author(s) -
Chen Xiaofan,
Zhang Panning,
Wang Tianren,
Li Huanrong
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201303957
Subject(s) - silsesquioxane , europium , thenoyltrifluoroacetone , lanthanide , context (archaeology) , thermal stability , ligand (biochemistry) , materials science , denticity , luminescence , ion , chemistry , polymer chemistry , crystal structure , crystallography , organic chemistry , polymer , composite material , paleontology , biochemistry , receptor , optoelectronics , extraction (chemistry) , biology , solvent extraction
The first europium(III) β‐diketonate complex functionalized polyhedral oligomeric silsesquioxane (POSS) has been obtained by immobilization of such a complex at a silicon vertex of the POSS cage through the complexation of Eu 3+ ions with thenoyltrifluoroacetone‐functionalized POSS. The new molecular hybrid material is liquid at room temperature, and shows bright‐red emission when irradiated with UV light due to energy transfer from the thenoyltrifluoroacetone ligand to the coordinated Eu 3+ ions. Thermal analysis has revealed a significant improvement in the thermal stability of the material compared with tris(2‐thenoyltrifluoroacetonate)europium(III) dihydrate, [Eu(TTA) 3 ] ⋅ 2 H 2 O. In the context of recent advances in printable electronic technology, this novel luminescent organic liquid with the characteristic emission of Eu 3+ may potentially be useful in the development of next‐generation organic devices such as flexible displays.