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Variation of the Emission Efficiency and Wavelength from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications
[Image: see text] Understanding the photophysical properties of metal salen complexes is not straightforward because the emission efficiency is altered irregularly upon structural modifications. The present study prepared zinc salen complexes with systematic structural variations to pinpoint critica...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9435038/ https://www.ncbi.nlm.nih.gov/pubmed/36061697 http://dx.doi.org/10.1021/acsomega.2c04714 |
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author | Kurahashi, Takuya |
author_facet | Kurahashi, Takuya |
author_sort | Kurahashi, Takuya |
collection | PubMed |
description | [Image: see text] Understanding the photophysical properties of metal salen complexes is not straightforward because the emission efficiency is altered irregularly upon structural modifications. The present study prepared zinc salen complexes with systematic structural variations to pinpoint critical factors to determine the emission efficiency. One of the important experimental observations is the regiochemistry of a phenolate substituent affecting emission efficiency from a salicylidene fluorophore, which is nicely assigned as arising from the photoexcited electronic structure of metal salen complexes. Another significant finding is the thermal fluctuation of a salen ligand arising from the mismatched ligand–metal interaction, which has a significant impact on fluorescence lifetime. The present study sheds light on hidden factors that alter photophysical properties of a metal salen complex, which provide valuable insights into designing new photoactive salen ligands. |
format | Online Article Text |
id | pubmed-9435038 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-94350382022-09-02 Variation of the Emission Efficiency and Wavelength from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications Kurahashi, Takuya ACS Omega [Image: see text] Understanding the photophysical properties of metal salen complexes is not straightforward because the emission efficiency is altered irregularly upon structural modifications. The present study prepared zinc salen complexes with systematic structural variations to pinpoint critical factors to determine the emission efficiency. One of the important experimental observations is the regiochemistry of a phenolate substituent affecting emission efficiency from a salicylidene fluorophore, which is nicely assigned as arising from the photoexcited electronic structure of metal salen complexes. Another significant finding is the thermal fluctuation of a salen ligand arising from the mismatched ligand–metal interaction, which has a significant impact on fluorescence lifetime. The present study sheds light on hidden factors that alter photophysical properties of a metal salen complex, which provide valuable insights into designing new photoactive salen ligands. American Chemical Society 2022-08-17 /pmc/articles/PMC9435038/ /pubmed/36061697 http://dx.doi.org/10.1021/acsomega.2c04714 Text en © 2022 The Author. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Kurahashi, Takuya Variation of the Emission Efficiency and Wavelength from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title | Variation of the
Emission Efficiency and Wavelength
from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title_full | Variation of the
Emission Efficiency and Wavelength
from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title_fullStr | Variation of the
Emission Efficiency and Wavelength
from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title_full_unstemmed | Variation of the
Emission Efficiency and Wavelength
from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title_short | Variation of the
Emission Efficiency and Wavelength
from Fluorescent Zinc Salen Complexes upon Systematic Structural Modifications |
title_sort | variation of the
emission efficiency and wavelength
from fluorescent zinc salen complexes upon systematic structural modifications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9435038/ https://www.ncbi.nlm.nih.gov/pubmed/36061697 http://dx.doi.org/10.1021/acsomega.2c04714 |
work_keys_str_mv | AT kurahashitakuya variationoftheemissionefficiencyandwavelengthfromfluorescentzincsalencomplexesuponsystematicstructuralmodifications |