Photochemical properties of mixed-ligand complexes europium carboxylates

被引:9
作者
Kalinovskaya, I. V. [1 ]
Zadorozhnaya, A. N. [1 ]
Kuryavyi, V. G. [1 ]
Karasev, E. V. [1 ]
机构
[1] Russian Acad Sci, Inst Chem, Far E Div, Vladivostok 690022, Russia
关键词
Phen; DMFA; Dipyridyl; HMPA; Luminescence Excitation Spectrum;
D O I
10.1134/S0036024407070242
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The photochemical behavior of mixed-ligand complexes of europium carboxylates with nitrogen- and phosphorus-containing neutral ligands of island and dimer types, Eu (L)(3) center dot xD center dot nH(2)O and [Eu (L)(3) center dot xD](2) center dot nH(2)O (L is the trifluoroacetate, toluate, or cinnamate anion), was studied. During UV irradiation of the complexes of europium carboxylates with 1,10-phenanthroline and 2,2'-dipyridyl, a luminescence buildup was observed. EPR measurements demonstrated that the observed buildup of luminescence from europium occurs in parallel with the increase of the concentration of radical anions formed from neutral ligands.
引用
收藏
页码:1147 / 1150
页数:4
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