Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81147
Title: Breaking the 1,2-HOPO barrier with a cyclen backbone for more efficient sensitization of eu(III) luminescence and unprecedented two-photon excitation properties
Authors: Dai, LX 
Lo, WS 
Gu, YJ 
Xiong, QW 
Wong, KL
Kwok, WM 
Wong, WT 
Law, GL 
Issue Date: 2019
Publisher: Royal Society of Chemistry
Source: Chemical science, 7 May 2019, v. 10, no. 17, p. 4550-4559 How to cite?
Journal: Chemical science 
Abstract: A cyclen backbone was utilized to study the effect of backbone rigidity on Eu(III) luminescence sensitization using a 1,2-HOPO derivative and 2-thenoyltrifluoroacetonate (TTA) as chromophores. The restriction of molecular movement of Eu-Cy-HOPO brought about by the increased rigidity provided a tightly packed coordination environment for the octadentate Eu(III) center which resulted in the highest overall quantum yield (30.2%) and sensitization efficiency (64.6%) among 1,2-HOPO sensitized Eu(III) complexes. Eu-Cy-HOPO is also the first 1,2-HOPO-based lanthanide complex to emit Eu(III) luminescence under two-photon excitation.
URI: http://hdl.handle.net/10397/81147
ISSN: 2041-6520
EISSN: 2041-6539
DOI: 10.1039/c9sc00244h
Rights: This journal is © The Royal Society of Chemistry 2019
This article is licensed under a Creative Commons Attibution-NonCommercial 3.0 Unported Licence (https://creativecommons.org/licenses/by-nc/3.0/)
The following publication Dai, L. X., Lo, W. S., Gu, Y. J., Xiong, Q. W., Wong, K. L., Kwok, W. M., … & Law, G. L. (2019). Breaking the 1,2-HOPO barrier with a cyclen backbone for more efficient sensitization of eu(III) luminescence and unprecedented two-photon excitation properties. Chemical science, 10(17), 4550-4559 is available at https://dx.doi.org/10.1039/c9sc00244h
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