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

• Published in: Journal of Alloys and Compounds, num. 451, p. 414-417
• Publication date: 2008

A series of new dimeric complexes with composition [Ln2(hfa)6(4-cpyNO)3] (2:3 adduct, Ln = SmIII–DyIII, TmIII) were synthesized and fully characterized. X-ray diffraction data of [Tb2(hfa)6(4-cpyNO)3]·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 EuIII and TbIII 2:3 adducts are presented and compared with those of the 2:2 adducts.

Keywords: Rare-earth alloys and compounds ; Crystal structure ; Luminescence ; Thermal analysis

Reference

• LCSL-ARTICLE-2008-019
• doi:10.1016/j.jallcom.2007.04.160
• View record in Web of Science

Record created on 2008-06-03, modified on 2012-03-21