铕
镧系元素
发光
铽
化学
组合化学
光化学
材料科学
有机化学
光电子学
离子
作者
Sebastiano Di Pietro,Dalila Iacopini,Aldo Moscardini,Ranieri Bizzarri,Mauro Pineschi,Valeria Di Bussolo,Giovanni Signore
出处
期刊:Molecules
[MDPI AG]
日期:2021-02-26
卷期号:26 (5): 1265-1265
被引量:5
标识
DOI:10.3390/molecules26051265
摘要
Europium (III) luminescent chelates possess intrinsic photophysical properties that are extremely useful in a wide range of applications. The lack of examples of coumarin-based lanthanide complexes is mainly due to poor photo-sensitization attempts. However, with the appeal of using such a versatile scaffold as antenna, especially in the development of responsive molecular probes, it is worth the effort to research new structural motifs. In this work, we present a series of two new tris coumarin-dipicolinate europium (III) complexes, specifically tailored to be either a mono or a dual emitter, tuning their properties with a simple chemical modification. We also encountered a rich chemical speciation in solution, studied in detail by means of paramagnetic NMR and emission spectroscopy.
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