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Research article2008Peer reviewed

Dimeric lanthanide hexafluoroacetylacetonate adducts with 4-cyarlopyridine-N-oxide

Eliseeva, Svetlana V.; Kotova, Oxana V.; Kessler, Vadim G.; Gumy, Frederic; Buenzli, Jean-Claude G.; Kuzmina, Natalia P.


A series of new dimeric complexes with composition [Ln(2)(hfa)(6)(4-cpyNO)(3)](2:3 adduct, Ln=Sm-III-Dy-III, Tm-III) were synthesized and fully characterized. X-ray diffraction data of [Tb-2(hfa)(6)(4-cpyNO)(3)]center dot CHCl3 confirmed the dimeric structure; Tb ions are nine-coordinated by six O atoms from three hfa-ligands and three O atoms from three bridging 4-cpyNO molecules. The photophysical properties (absolute quantum yields and luminescence lifetimes) of the Eu-III and Tb-III 2:3 adducts are presented and compared with those of the 2:2 adducts. (C) 2007 Elsevier B.V. All rights reserved.


rare-earth alloys and compounds; crystal structure; luminescence; thermal analysis

Published in

Journal of Alloys and Compounds
2008, Volume: 451, number: 1-2, pages: 414-417

    UKÄ Subject classification

    Materials Chemistry

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