282532-48-3Relevant academic research and scientific papers
Synthesis, crystal structure and fluorescence emission of complexes of lanthanide picrates with 2,2'-[ 1,2-phenylenebis(oxy)]-bis(N,N-diphenylacetamide) (PBD)
Fan, Liyan,Liu, Weisheng,Gan, Xinmin,Tang, Ning,Tan, Minyu,Jiang, Weihua,Yu, Kaibei
, p. 779 - 783 (2008/10/08)
Solid complexes of lanthanide picrates with 2,2'-[1,2-phenylenebis(oxy)]bis(N,N-diphenylacetamide) (PBD) have been prepared in ethanol. These complexes have been characterized by elemental analysis, conductivity measurements, IR, electronic and 1H NMR spectroscopies. The crystal and molecular structures of [Y(pic)3(PBD)] · 3.8CH3CN have been determined. The crystal structure shows that the Y(III) ion is coordinated to four oxygen atoms of PBD, four oxygen atoms of one bidentate and two unidentate picrates. The coordination number of yttrium is eight. The structure reveals that PBD acts as a tetradentate ligand, forming a ring-like coordination structure similar to those of crown compounds. The Eu(III) complex shows strong emission when excited with 260 nm radiation in the solid state. The intensity ratio 5D0-7F2/5D0-7F1 is 21.5. (C) 2000 Elsevier Science Ltd.
