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Wang G, Chen X, Li X, Zeng Y, Zhang K. Mechanism landscape in pyrylium induced organic afterglow systems. Chem Sci 2023; 14:8180-8186. [PMID: 37538825 PMCID: PMC10395265 DOI: 10.1039/d3sc01500a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
Abstract
Manipulation of excited states and their dynamics represents a central topic in luminescence systems. We report an unexpected emergence of a high-performance organic afterglow in pyrylium induced photopolymerization systems, as well as the establishment of the mechanism landscape of the afterglow systems as a function of monomer types. In the case of methyl methacrylate, after pyrylium-catalyzed photopolymerization, the obtained materials exhibit a TADF-type organic afterglow with an afterglow efficiency of 70.4%. By using heavy-atom-containing methacrylate, the external heavy atom effect speeds up phosphorescence decay and switches on room-temperature phosphorescence in pyrylium-polymer systems. When 9-vinylcarbazole is used, the resultant materials display organic long persistent luminescence with hour-long durations and emission maxima around 650 nm. The intriguing mechanism landscape reflects the delicate balance of multiple photophysical processes in the pyrylium induced organic afterglow systems, which has been rarely explored in the reported studies.
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Affiliation(s)
- Guangming Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Xuefeng Chen
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Xun Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Ying Zeng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Kaka Zhang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 People's Republic of China
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Santos WG, Budkina DS, Santagneli SH, Tarnovsky AN, Zukerman-Schpector J, Ribeiro SJL. Ion-Pair Complexes of Pyrylium and Tetraarylborate as New Host-Guest Dyes: Photoinduced Electron Transfer Promoting Radical Polymerization. J Phys Chem A 2019; 123:7374-7383. [PMID: 31386369 DOI: 10.1021/acs.jpca.9b03581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ultrafast transient absorption spectroscopy, NOESY-NMR, and EPR spectroscopy shed light on how π-π stacking interactions combined with electrostatic interactions can be used to form stable ion-pair complexes between pyrylium and tetraarylborate ions in which the interaction of the π-delocalized clouds promotes the observation of new radiative processes and also electron transfer processes excitation using visible light. The results exhibit a striking combination of properties, chemical stability and photophysical and photochemical events, that make these ion-pair complexes as a step toward the realization of chromophore/luminescent materials and also their use as a new monophotoinitiator system in radical polymerization reactions.
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Affiliation(s)
- Willy G Santos
- Institute of Chemistry , São Paulo State University - UNESP , CP 355, Araraquara , SP 14801-970 , Brazil.,Department of Chemistry , Federal University of São Carlos , UFSCar, CP 676, São Carlos , SP 13565-905 , Brazil
| | - Darya S Budkina
- Center for Photochemical Sciences, Department of Chemistry , Bowling Green State University , Bowling Green , Ohio 43403 , United States
| | - Silvia H Santagneli
- Institute of Chemistry , São Paulo State University - UNESP , CP 355, Araraquara , SP 14801-970 , Brazil
| | - Alexander N Tarnovsky
- Center for Photochemical Sciences, Department of Chemistry , Bowling Green State University , Bowling Green , Ohio 43403 , United States
| | - Julio Zukerman-Schpector
- Department of Chemistry , Federal University of São Carlos , UFSCar, CP 676, São Carlos , SP 13565-905 , Brazil
| | - Sidney J L Ribeiro
- Institute of Chemistry , São Paulo State University - UNESP , CP 355, Araraquara , SP 14801-970 , Brazil
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Sheng Y, Regner M. Roles of Water Molecules and Counterion on HS - Sensing Reaction Utilizing a Pyrylium Derivative: A Computational Study. J Phys Chem A 2019; 123:3334-3343. [PMID: 30912942 DOI: 10.1021/acs.jpca.9b01288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we present a comprehensive computational study on the hydrogen sulfide ion (HS-) sensing mechanism in aqueous solution using pyrylium-thiopyrylium transformation. Explicit water molecules up to three water molecules are considered using supramolecular models. The effect of water bulk solvent is also taken into account according to the polarizable continuum model. Our results demonstrate that water molecules are directly involved in the sensing reactions by altering reaction mechanisms and dramatically lower the activation energies. The most favorable HS- sensing mechanism involves a 10-membered ring transition structure formed by three water molecules and one hydronium. The catalytic effects of water molecule(s) due to the alleviation of ring strain and the stabilization from deprotonated hydronium significantly lower the activation energy. The activation energies in aqueous solution decrease from 40.2 kcal/mol for the hydronium-only-catalyzed reaction to 15.7, 14.8, and 7.4 kcal/mol for one-water-, two-water-, and three-water-catalyzed mechanisms, respectively. In addition, the effect of the counterion tetrafluoroborate (BF4-) on the reaction mechanisms was also investigated. Our results demonstrate that the counterion BF4- most likely behaves as a spectator and has minor influence on the reaction mechanism.
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Affiliation(s)
- Yinghong Sheng
- Department of Chemistry and Physics, College of Arts and Sciences , Florida Gulf Coast University , 10501 FGCU Blvd. South , Fort Myers , Florida 33965 , United States
| | - Matthew Regner
- Department of Chemistry and Physics, College of Arts and Sciences , Florida Gulf Coast University , 10501 FGCU Blvd. South , Fort Myers , Florida 33965 , United States
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Bonesi SM, Protti S, Albini A. Reactive Oxygen Species (ROS)-vs Peroxyl-Mediated Photosensitized Oxidation of Triphenylphosphine: A Comparative Study. J Org Chem 2016; 81:11678-11685. [DOI: 10.1021/acs.joc.6b02088] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergio Mauricio Bonesi
- Departamento
de Química Orgánica, CIHIDECAR − CONICET, 3er Piso, Pabellón 2, Ciudad Universitaria, FCEyN, University of Buenos Aires, Buenos Aires 1428, Argentina
- Department
of Chemistry, PhotoGreen Lab, V.Le Taramelli 12, 27100 Pavia, Italy
| | - Stefano Protti
- Department
of Chemistry, PhotoGreen Lab, V.Le Taramelli 12, 27100 Pavia, Italy
| | - Angelo Albini
- Department
of Chemistry, PhotoGreen Lab, V.Le Taramelli 12, 27100 Pavia, Italy
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Goez M, Vogtherr M. Electron self-exchange activation parameters of diethyl sulfide and tetrahydrothiophene. Beilstein J Org Chem 2013; 9:1448-54. [PMID: 23946842 PMCID: PMC3740679 DOI: 10.3762/bjoc.9.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 06/27/2013] [Indexed: 11/23/2022] Open
Abstract
Electron transfer between the title compounds and their radical cations, which were generated by photoinduced electron transfer from the sulfides to excited 2,4,6-triphenylpyrylium cations, was investigated by time-resolved measurements of chemically induced dynamic nuclear polarization (CIDNP) in acetonitrile. The strongly negative activation entropies provide evidence for an associative–dissociative electron exchange involving dimeric radical cations. Despite this mechanistic complication, the free energies of activation were found to be well reproduced by the Marcus theory of electron transfer, with the activation barrier still dominated by solvent reorganization.
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Affiliation(s)
- Martin Goez
- Institut für Chemie, Martin–Luther-Universität Halle–Wittenberg, Kurt–Mothes-Str. 2, 06120 Halle/Saale, Germany
| | - Martin Vogtherr
- Merck KGaA, NMR Spectroscopy, Frankfurter Straße 250, 64293 Darmstadt, Germany
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Sheng Y, Ren Y. Computational Study on a HS– Sensing Reaction Utilizing a Pyrylium Derivative. J Phys Chem A 2012; 116:5420-7. [DOI: 10.1021/jp300353y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yinghong Sheng
- Department of Chemistry & Mathematics, College of Arts & Sciences, Florida Gulf Coast University, 10501 FGCU Boulevard, South, Fort Myers, Florida 33965, United States
| | - Yi Ren
- College of Chemistry,
and Key State Laboratory of Biotherapy, Sichuan University, Chengdu 610064, People’s Republic of China
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Rajkumar M, Bhuvaneswari J, Velayudham M, Rajkumar E, Rajagopal S. Photoluminescence Electron-Transfer Quenching of Rhenium(I) Complexes with Organic Sulfides. J Fluoresc 2011; 21:1729-37. [DOI: 10.1007/s10895-011-0868-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Accepted: 02/13/2011] [Indexed: 11/24/2022]
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Scaramuzzo FA, González-Campo A, Wu CC, Velders AH, Subramaniam V, Doddi G, Mencarelli P, Barteri M, Jonkheijm P, Huskens J. Pyrylium monolayers as amino-reactive platform. Chem Commun (Camb) 2010; 46:4193-5. [PMID: 20458426 DOI: 10.1039/c002203a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new monolayer platform based on pyrylium has been developed which is reactive towards amine-terminated (bio)molecules. Upon reaction, a switch in fluorescence properties of the monolayer signifies successful immobilization of these molecules.
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Affiliation(s)
- Francesca A Scaramuzzo
- Molecular Nanofabrication Group, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
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