双（二苯膦基）烷二氧醚铕配合物的发光性质。

Luminescent properties of europium complexes with bis(diphenylphosphino)alkane dioxides.

机构信息

Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, CZ-62500, Brno, Czech Republic.

出版信息

Luminescence. 2011 Nov-Dec;26(6):650-5. doi: 10.1002/bio.1291. Epub 2011 Apr 13.

Abstract

Eu(NO(3))(3) · 5H(2)O and EuCl(3) · 6H(2)O were allowed to react with bis(diphenylphosphino)alkane dioxides Ph(2)P(O)(CH(2))(n) P(O)Ph(2)(n = 2, 4, 6) to obtain polymeric and binuclear complexes. The prepared compounds were structurally characterized by X-ray diffraction. Luminescence measurements (emission and excitation spectra, quantum yields, lifetimes) were compared with crystallographic data in order to find a relationship between luminescent properties of the Eu(III) complexes and their structures. The Eu(III) polymers, especially Eu(dpphO(2))(2)Cl(2) Cl(-)}(n), have shown extremely long luminescence lifetimes, up to 3.73 ms, as a result of a highly protecting hydrophobic shield.

摘要

Eu(NO3)3·5H2O 和 EuCl3·6H2O 与双（二苯基膦基）烷二氧化物 Ph2P(O)(CH2)nP(O)Ph2(n=2,4,6)反应，得到了聚合物和双核配合物。通过 X 射线衍射对所制备的化合物进行了结构表征。比较了发光测量（发射和激发光谱、量子产率、寿命）与晶体学数据，以确定 Eu(III)配合物的发光性质与其结构之间的关系。Eu(III)聚合物，特别是Eu(dpphO2)2Cl2Cl(-)}(n)，由于具有高度保护的疏水性屏蔽，表现出非常长的荧光寿命，长达 3.73 毫秒。