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Li Z, Wang B, Zhang BB, Ma HX, Xue J, Xu L, Jiao LY, Ma XX. Fabrication of SubPc-Br/Ag3PO4 composites with high-efficiency and stable photocatalytic performance. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li Z, Wang B, Zhang B, Cui G, Zhang F, Xu L, Jiao L, Pang L, Ma X. Synthesis, Characterization and Optoelectronic Property of Axial-Substituted Subphthalocyanines. ChemistryOpen 2020; 9:1001-1007. [PMID: 33042728 PMCID: PMC7538922 DOI: 10.1002/open.202000206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/06/2020] [Indexed: 12/28/2022] Open
Abstract
Two novel substituted subphthalocyanines have been prepared introducing m-hydroxybenzoic acid and m-hydroxyphenylacetic acid into the axial position of bromo-subphthalocyanine. The compounds have been characterized by Fourier transform infrared (FT-IR), Nuclear Magnetic Resonance (NMR) and single-crystal X-rays diffraction (XRD) methods. Their photophysical properties show that the axial substitution results into a relatively higher fluorescence quantum efficiency (ΦF=5.74 for m-hydroxybenzoic acid and 9.09 % for m-hydroxyphenylacetic acid) in comparison with that of the prototype compound, despite the almost negligible influence on the maximum absorption or the emission position. Moreover, the electrochemical behaviors show that the axial-substituted subphthalocyanines also exhibit enhanced specific capacitances of 395 F/g (m-hydroxybenzoic acid) and 362 F/g (m-hydroxyphenylacetic acid) compared with 342 F/g (the prototype) to the largest capacitance at the scan rate of 5 mV/s, and the significantly larger capacitance retentions of 83.6 % and 82.1 % versus 37.3 % upon density up to 3 A/g. These results show the potential of these axial-substituted subphthalocyanines in the use as organic photovoltaics and supercapacitors.
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Affiliation(s)
- Zhuo Li
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
- Department of Chemistry and Centre for Plastic Electronics, Imperial College London, Exhibition Road, London, SW7 2AZ, UK
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Northwest University, Xi'an, 710069, China
| | - Bing Wang
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Bingbing Zhang
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Guoyi Cui
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Fenyan Zhang
- College of food science and technology, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Long Xu
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Linyu Jiao
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
| | - Lingyan Pang
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Xiaoxun Ma
- School of Chemical Engineering, Northwest University, Shaanxi, Xi'an, 710069, China
- Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy, Shaanxi Research Center of Engineering Technology for Clean Coal Conversion, Northwest University, Xi'an, 710069, China
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Domínguez R, Moral M, Fernández-Liencres MP, Peña-Ruiz T, Tolosa J, Canales-Vázquez J, García-Martínez JC, Navarro A, Garzón-Ruiz A. Understanding the Driving Mechanisms of Enhanced Luminescence Emission of Oligo(styryl)benzenes and Tri(styryl)-s-triazine. Chemistry 2020; 26:3373-3384. [PMID: 31967698 DOI: 10.1002/chem.201905336] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/10/2020] [Indexed: 01/23/2023]
Abstract
This work is focused on unraveling the mechanisms responsible for the aggregation-induced enhanced emission and solid-state luminescence enhancement effects observed in star-shaped molecules based on 1,3,5-tris(styryl)benzene and tri(styryl)-s-triazine cores. To achieve this, the photophysical properties of this set of molecules were analyzed in three states: free molecules, molecular aggregates in solution, and the solid state. Different spectroscopy and microscopy experiments and DFT calculations were conducted to scrutinize the causative mechanisms of the luminescence enhancement phenomenon observed in some experimental conditions. Enhanced luminescence emission was interpreted in the context of short- and long-range excitonic coupling mechanisms and the restriction of intramolecular vibrations. Additionally, we found that the formation of π-stacking aggregates could block E/Z photoisomerization through torsional motions between phenylene rings in the excited state, and hence, enhancing the luminescence of the system.
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Affiliation(s)
- Rocío Domínguez
- Department of Inorganic, Organic and Biochemistry, Faculty of Pharmacy, University of Castilla-La Mancha, José María Sánchez Ibañez s/n, 02071, Albacete, Spain.,Regional Center for Biomedical Research (CRIB), University of Castilla-La Mancha, Almansa s/n, 02071, Albacete, Spain
| | - Mónica Moral
- Renewable Energy Research Institute, University of Castilla-La Mancha, Paseo de la Investigación 1, 02071, Albacete, Spain
| | - M Paz Fernández-Liencres
- Department of Physical and Analytical Chemistry, Faculty of Experimental Sciences, University of Jaén, Campus Las Lagunillas, 23071, Jaén, Spain
| | - Tomás Peña-Ruiz
- Department of Physical and Analytical Chemistry, Faculty of Experimental Sciences, University of Jaén, Campus Las Lagunillas, 23071, Jaén, Spain
| | - Juan Tolosa
- Department of Inorganic, Organic and Biochemistry, Faculty of Pharmacy, University of Castilla-La Mancha, José María Sánchez Ibañez s/n, 02071, Albacete, Spain.,Regional Center for Biomedical Research (CRIB), University of Castilla-La Mancha, Almansa s/n, 02071, Albacete, Spain
| | - Jesús Canales-Vázquez
- Renewable Energy Research Institute, University of Castilla-La Mancha, Paseo de la Investigación 1, 02071, Albacete, Spain
| | - Joaquín C García-Martínez
- Department of Inorganic, Organic and Biochemistry, Faculty of Pharmacy, University of Castilla-La Mancha, José María Sánchez Ibañez s/n, 02071, Albacete, Spain.,Regional Center for Biomedical Research (CRIB), University of Castilla-La Mancha, Almansa s/n, 02071, Albacete, Spain
| | - Amparo Navarro
- Department of Physical and Analytical Chemistry, Faculty of Experimental Sciences, University of Jaén, Campus Las Lagunillas, 23071, Jaén, Spain
| | - Andrés Garzón-Ruiz
- Department of Physical Chemistry, Faculty of Pharmacy, University of Castilla-La Mancha, José María Sánchez Ibañez s/n, 02071, Albacete, Spain
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