含氮冠杯芳烃镧系配合物的结构和光谱发光性质

S. Smola, N. Rusakova, O. Alekseeva, S. Basok, T. Kirichenko, O. Korovin, O. Malinka, N. Semenishyn
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引用次数: 0

摘要

镧系配合物的杯[4]芳烃下缘取代了两个氮冠醚片段。取代基空腔的大小从4到6个杂原子不等。用红外光谱、核磁共振光谱、ESI质谱对配合物进行了分析。假设Ln(III)离子的配位是通过下环的供体原子发生的;反阴离子和溶剂分子也是配位的。在Eu(III)、Tb(III)和Yb(III)配合物中观察到镧系元素中心的特征发光。最有效的4f发光被观察到含铽配合物与苯冠衍生的配体。讨论了4f致敏的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
STRUCTURE AND SPECTRAL-LUMUINESCENT PROPERTIES OF LANTHANIDE-CONTAINING COMPLEXES WITH AZACROWN CALIXARENES
Lanthanide complexes with calix[4]arenes lower rim substituted with two azacrown ether fragments are reported. The size of the substituent cavity varied from 4 to 6 heteroatoms. The complexes were analyzed by means of IR, NMR, ESI mass spectroscopy. It is assumed that the coordination of Ln(III) ions occurs through the donor atoms of the lower rim; the counter anion and solvent molecule are also coordinated. Lanthanide-centered characteristic luminescence was observed in Eu(III), Tb(III) and Yb(III) complexes. The most efficient 4f-luminescence is observed for terbium-containing complexes with benzo-crown-derived ligands. The pathways of the sensitization of 4f-luminescence are discussed.
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