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31.
Amide-type tripodal ligands have been used as ac-tive materials in ion-selective electrodes, ion recogni-tion and ion-transfer carrier, etc.,1-3 but their lanthanide complexes have not yet attracted much attention in spite of their high tendency to coordinate towards Ln(III) ions. The first three dimensional network of Eu(III) complex, which contains 1,1,1-tris{[(2-benzylaminoformyl)- phenoxy]methyl}propane (the hexadentate ligand) and Eu(NO3)3 as building block, assembled by coordination … 相似文献
32.
A novel podand ligand using crown ether as skeleton and N-benzylsalicylamide as functional arms, 4,5-bi{2′-methylbenzeneaminoformyl)phenoxyl]methyl}-benzo-12-crown-4 (L), and its rare earth nitrate complexes have been synthesized. These complexes were characterized by elemental analysis, conductivity measurements and IR spectroscopy. Spectrographic analyses suggest that the complexes show a similar coordination mode. At the same time, the luminescent properties of the Eu(Ⅲ) and Tb(Ⅲ) complexes were also studied. 相似文献
33.
以稀土硝酸盐和酰胺型半刚性三足桥联配体1,3,5-三[(2’-苄胺甲酰基苯氧基)-甲基】苯(L)为构筑单元组装出一系列具有新颖的(10,3)-a型三维网状配位聚合结构的稀土配合物【REL(NO3)3]n.x射线单晶衍射结果表明,晶体属于正交晶系,P212121手性空间群.配合物中每个配体均以三齿桥联的方式连接在3个稀土离子之间,而每个稀土离子又同时与3个配体的3个羰基氧原子配位,形成一个新颖的无限延伸的(10,3)-a型网状结构.迄今为止,在稀土配合物中这种(10,3)-a型网状配位聚合结构非常少见.室温下,在紫外光激发下Sm(Ⅲ),Eu(Ⅲ),Tb(Ⅲ),Dy(Ⅲ)配合物均表现出中心离子的特征荧光发射. 相似文献
34.
35.
2,3-二(苄胺基甲酰基苯氧基-甲基)喹喔啉(L)稀土配合物的合成、表征及荧光性质研究 总被引:1,自引:0,他引:1
Solid complexes of rare earth nitrates with a new amide type podand ligand, 2,3-bis{[(2′-benzylaminoformyl)phenoxyl]methyl}quinoxaline (L), were prepared. These complexes were characterized by elemental analysis, conductivity measurements and IR spectroscopy. Spectrographic analyses suggest that the complexes show a similar coordination mode. At the same time, the luminescence properties of the Eu(Ⅲ) and Tb (Ⅲ) complexes were also studied. 相似文献
36.
Two new amide type podands L1 and L2 (L1=1,1,1-tris{[2-benzylaminoformyl)phenoxyl] methyl} propane,L2=1,3,5-timethyl-2,4,6-tris{[2-benzylaminoformyl)phenoxyl]methyl} benzene)and their europium and terbium nitrates complexes were synthesized.The luminescence properties of these complexes were also studied. 相似文献
37.
合成了三脚架型席夫碱配体N,N',N"-三香草醛缩三氨乙基胺(C30H33N4O3(OH)3,L)及其稀土硝酸盐配合物.通过元素分析、红外光谱、核磁共振及热分析谱对它们进行了表征.同时,初步研究了配体及其部分稀土配合物对人体白血病细胞的抑制作用. 相似文献
38.
Two series of solid complexes of rare earth nitrates and picrates with the “back-to-back” terpyridine, 6′,6″-bis(2-pyridyl)-2,2′:4′,4″:2″,2′′′-quaterpyridine (L) have been synthesized. These complexes have been characterized by elemental analysis, conductivity measurements, thermal analysis and IR spectroscopy. At the same time, the luminescent properties of the Eu(Ⅲ) and Tb(Ⅲ) complexes were also studied. 相似文献