Europium complexes of a novel ethylenedioxythiophene-derivatized bis(pyrazolyl)pyridine ligand exhibiting efficient lanthanide sensitization

Inorganic Chemistry
Julie M StanleyBradley J Holliday

Abstract

A new class of highly luminescent nine-coordinated europium(III) tris(beta-diketonate) bis[(ethylenedioxythiophene)pyrazolyl]pyridine (L) complexes has been synthesized and the photophysical properties studied: 1 = Eu(hfac)(3)(L); 2 = Eu(tta)(3)(L); 3 = Eu(btfac)(3)(L). The solid-state structure of complex 1 has been determined by single-crystal X-ray crystallography and shows the geometry of the local coordination environment around the Eu(III) ion to be a slightly distorted tricapped trigonal prism. Luminescence lifetimes were found to be 581, 473, and 576 micros for complexes 1-3, respectively. Absolute quantum yields for complexes 1-3 were measured as 16.4 +/- 1.4%, 27.5 +/- 1.2%, and 22.2% +/- 0.3%, respectively.

References

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Citations

Jan 1, 2010·Acta Crystallographica. Section E, Structure Reports Online·Julie M Stanley, Bradley J Holliday
Jan 9, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Mir IrfanullahArindam Chowdhury
Mar 11, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Wei ChenYulin Yang
Aug 8, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Kuppusamy Senthil KumarMario Ruben
Sep 19, 2015·Physical Chemistry Chemical Physics : PCCP·Denis Augusto TurchettiLeni Campos Akcelrud
Jul 14, 2011·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yemineni S L V Narayana, Rajadurai Chandrasekar
Jul 10, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Weizuo LiGuangming Li
Sep 5, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Xi-Li LiShao-Ming Fang
Nov 5, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Lu ChenLi-Rong Lin
Jun 25, 2021·Chemical Science·Mario Palacios-CorellaEugenio Coronado
Jul 6, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Mei LiHongfeng Li
Aug 20, 2021·Chemistry : a European Journal·Teng ZhangYasuchika Hasegawa

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