Cargando…
Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids
A series of unsymmetrical 1,3-diaryl-β-diketones 1–6 displaying molecular conformation-dependent fluorescence quantum yields have been synthesized. Crystals with planar molecular conformation such as 1, 2, 3 and 4 are highly fluorescent (φ(f): 39–53%), and the one holding slightly twisted conformati...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4360484/ https://www.ncbi.nlm.nih.gov/pubmed/25771808 http://dx.doi.org/10.1038/srep09140 |
_version_ | 1782361548551880704 |
---|---|
author | Cheng, Xiao Li, Feng Han, Shenghua Zhang, Yufei Jiao, Chuanjun Wei, Jinbei Ye, Kaiqi Wang, Yue Zhang, Hongyu |
author_facet | Cheng, Xiao Li, Feng Han, Shenghua Zhang, Yufei Jiao, Chuanjun Wei, Jinbei Ye, Kaiqi Wang, Yue Zhang, Hongyu |
author_sort | Cheng, Xiao |
collection | PubMed |
description | A series of unsymmetrical 1,3-diaryl-β-diketones 1–6 displaying molecular conformation-dependent fluorescence quantum yields have been synthesized. Crystals with planar molecular conformation such as 1, 2, 3 and 4 are highly fluorescent (φ(f): 39–53%), and the one holding slightly twisted conformation (5) is moderately luminescent (φ(f) = 17%), while crystal 6 possessing heavily bent structure is completely nonluminous (φ(f) ~ 0). The distinct fluorescence efficiencies are ascribed to their different molecular conformations, since all the crystals hold the same crystal system, space group and crystal packing structures. Additionally, the fluorescent crystals 1–5 display low threshold amplified spontaneous emission (ASE) with small full widths at half-maximum (FWHM: 3–7 nm), indicating their potential as candidates for organic crystal lasing devices. |
format | Online Article Text |
id | pubmed-4360484 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-43604842015-03-19 Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids Cheng, Xiao Li, Feng Han, Shenghua Zhang, Yufei Jiao, Chuanjun Wei, Jinbei Ye, Kaiqi Wang, Yue Zhang, Hongyu Sci Rep Article A series of unsymmetrical 1,3-diaryl-β-diketones 1–6 displaying molecular conformation-dependent fluorescence quantum yields have been synthesized. Crystals with planar molecular conformation such as 1, 2, 3 and 4 are highly fluorescent (φ(f): 39–53%), and the one holding slightly twisted conformation (5) is moderately luminescent (φ(f) = 17%), while crystal 6 possessing heavily bent structure is completely nonluminous (φ(f) ~ 0). The distinct fluorescence efficiencies are ascribed to their different molecular conformations, since all the crystals hold the same crystal system, space group and crystal packing structures. Additionally, the fluorescent crystals 1–5 display low threshold amplified spontaneous emission (ASE) with small full widths at half-maximum (FWHM: 3–7 nm), indicating their potential as candidates for organic crystal lasing devices. Nature Publishing Group 2015-03-16 /pmc/articles/PMC4360484/ /pubmed/25771808 http://dx.doi.org/10.1038/srep09140 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Cheng, Xiao Li, Feng Han, Shenghua Zhang, Yufei Jiao, Chuanjun Wei, Jinbei Ye, Kaiqi Wang, Yue Zhang, Hongyu Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title | Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title_full | Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title_fullStr | Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title_full_unstemmed | Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title_short | Emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: A model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
title_sort | emission behaviors of unsymmetrical 1,3-diaryl-β-diketones: a model perfectly disclosing the effect of molecular conformation on luminescence of organic solids |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4360484/ https://www.ncbi.nlm.nih.gov/pubmed/25771808 http://dx.doi.org/10.1038/srep09140 |
work_keys_str_mv | AT chengxiao emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT lifeng emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT hanshenghua emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT zhangyufei emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT jiaochuanjun emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT weijinbei emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT yekaiqi emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT wangyue emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids AT zhanghongyu emissionbehaviorsofunsymmetrical13diarylbdiketonesamodelperfectlydisclosingtheeffectofmolecularconformationonluminescenceoforganicsolids |