Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection

In this work, two thianthrene (TA) derivatives, 1-phenylthianthrene (TA1P) and 2-phenylthianthrene (TA2P), were synthesized with single-phenyl modification for pure organic discrete-molecule room-temperature phosphorescence (RTP). They both show the dual emission of fluorescence and RTP in amorphous...

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Autores principales: Yang, Zhiqiang, Zhao, Shuaiqiang, Zhang, Xiangyu, Liu, Meng, Liu, Haichao, Yang, Bing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8828495/
https://www.ncbi.nlm.nih.gov/pubmed/35155381
http://dx.doi.org/10.3389/fchem.2021.810304
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author Yang, Zhiqiang
Zhao, Shuaiqiang
Zhang, Xiangyu
Liu, Meng
Liu, Haichao
Yang, Bing
author_facet Yang, Zhiqiang
Zhao, Shuaiqiang
Zhang, Xiangyu
Liu, Meng
Liu, Haichao
Yang, Bing
author_sort Yang, Zhiqiang
collection PubMed
description In this work, two thianthrene (TA) derivatives, 1-phenylthianthrene (TA1P) and 2-phenylthianthrene (TA2P), were synthesized with single-phenyl modification for pure organic discrete-molecule room-temperature phosphorescence (RTP). They both show the dual emission of fluorescence and RTP in amorphous polymer matrix after deoxygenation, as a result of a new mechanism of folding-induced spin-orbit coupling (SOC) enhancement. Compared with TA1P, TA2P exhibits a higher RTP efficiency and a larger spectral separation between fluorescence and RTP, which is ascribed to the substituent effect of TA at the 2-position. With decreasing oxygen concentration from 1.61% to 0%, the discrete-molecule TA2P shows an about 18-fold increase in RTP intensity and an almost constant fluorescence intensity, which can make TA2P as a self-reference ratiometric optical oxygen sensing probe at low oxygen concentrations. The oxygen quenching constant (K (SV)) of TA2P is estimated as high as 10.22 KPa(−1) for polymethyl methacrylate (PMMA)-doped film, and even reach up to 111.86 KPa(−1) for Zeonex(®)-doped film, which demonstrates a very high sensitivity in oxygen sensing and detection. This work provides a new idea to design pure organic discrete-molecule RTP materials with high efficiency, and TA derivatives show a potential to be applied in quantitative detection of oxygen as a new-generation optical oxygen-sensing material.
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spelling pubmed-88284952022-02-11 Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection Yang, Zhiqiang Zhao, Shuaiqiang Zhang, Xiangyu Liu, Meng Liu, Haichao Yang, Bing Front Chem Chemistry In this work, two thianthrene (TA) derivatives, 1-phenylthianthrene (TA1P) and 2-phenylthianthrene (TA2P), were synthesized with single-phenyl modification for pure organic discrete-molecule room-temperature phosphorescence (RTP). They both show the dual emission of fluorescence and RTP in amorphous polymer matrix after deoxygenation, as a result of a new mechanism of folding-induced spin-orbit coupling (SOC) enhancement. Compared with TA1P, TA2P exhibits a higher RTP efficiency and a larger spectral separation between fluorescence and RTP, which is ascribed to the substituent effect of TA at the 2-position. With decreasing oxygen concentration from 1.61% to 0%, the discrete-molecule TA2P shows an about 18-fold increase in RTP intensity and an almost constant fluorescence intensity, which can make TA2P as a self-reference ratiometric optical oxygen sensing probe at low oxygen concentrations. The oxygen quenching constant (K (SV)) of TA2P is estimated as high as 10.22 KPa(−1) for polymethyl methacrylate (PMMA)-doped film, and even reach up to 111.86 KPa(−1) for Zeonex(®)-doped film, which demonstrates a very high sensitivity in oxygen sensing and detection. This work provides a new idea to design pure organic discrete-molecule RTP materials with high efficiency, and TA derivatives show a potential to be applied in quantitative detection of oxygen as a new-generation optical oxygen-sensing material. Frontiers Media S.A. 2022-01-27 /pmc/articles/PMC8828495/ /pubmed/35155381 http://dx.doi.org/10.3389/fchem.2021.810304 Text en Copyright © 2022 Yang, Zhao, Zhang, Liu, Liu and Yang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Chemistry
Yang, Zhiqiang
Zhao, Shuaiqiang
Zhang, Xiangyu
Liu, Meng
Liu, Haichao
Yang, Bing
Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title_full Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title_fullStr Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title_full_unstemmed Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title_short Efficient Room-Temperature Phosphorescence from Discrete Molecules Based on Thianthrene Derivatives for Oxygen Sensing and Detection
title_sort efficient room-temperature phosphorescence from discrete molecules based on thianthrene derivatives for oxygen sensing and detection
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8828495/
https://www.ncbi.nlm.nih.gov/pubmed/35155381
http://dx.doi.org/10.3389/fchem.2021.810304
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