1
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Tachibana SR, Tang L, Chen C, Zhu L, Takeda Y, Fushimi K, Seevers TK, Narikawa R, Sato M, Fang C. Transient electronic and vibrational signatures during reversible photoswitching of a cyanobacteriochrome photoreceptor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119379. [PMID: 33401182 DOI: 10.1016/j.saa.2020.119379] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/12/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
Cyanobacteriochromes (CBCRs) are an emerging class of photoreceptors that are distant relatives of the phytochromes family. Unlike phytochromes, CBCRs have gained popularity in optogenetics due to their highly diverse spectral properties spanning the UV to near-IR region and only needing a single compact binding domain. AnPixJg2 is a CBCR that can reversibly photoswitch between its red-absorbing (15ZPr) and green-absorbing (15EPg) forms of the phycocyanobilin (PCB) cofactor. To reveal primary events of photoconversion, we implemented femtosecond transient absorption spectroscopy with a homemade LED box and a miniature peristaltic pump flow cell to track transient electronic responses of the photoexcited AnPixJg2 on molecular time scales. The 525 nm laser-induced Pg-to-Pr reverse conversion exhibits a ~3 ps excited-state lifetime before reaching the conical intersection (CI) and undergoing further relaxation on the 30 ps time scale to generate a long-lived Lumi-G ground state intermediate en route to Pr. The 650 nm laser-induced Pr-to-Pg forward conversion is less efficient than reverse conversion, showing a longer-lived excited state which requires two steps with ~13 and 217 ps time constants to enter the CI region. Furthermore, using a tunable ps Raman pump with broadband Raman probe on both the Stokes and anti-Stokes sides, we collected the pre-resonance ground-state femtosecond stimulated Raman spectroscopy (GS-FSRS) data with mode assignments aided by quantum calculations. Key vibrational marker bands at ~850, 1050, 1615, and 1649 cm-1 of the Pr conformer exhibit a notable blueshift to those of the Pg conformer inside AnPixJg2, reflecting the PCB chromophore terminal D (major) and A (minor) ring twist along the primary photoswitching reaction coordinate. This integrated ultrafast spectroscopy and computational platform has the potential to elucidate photochemistry and photophysics of more CBCRs and photoactive proteins in general, providing the highly desirable mechanistic insights to facilitate the rational design of functional molecular sensors and devices.
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Affiliation(s)
- Sean R Tachibana
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States
| | - Longteng Tang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States
| | - Cheng Chen
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States
| | - Liangdong Zhu
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States
| | - Yuka Takeda
- Graduate School of Integrated Science and Technology, Shizuoka University, 422-8529 Shizuoka, Japan
| | - Keiji Fushimi
- Graduate School of Integrated Science and Technology, Shizuoka University, 422-8529 Shizuoka, Japan
| | - Travis K Seevers
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States
| | - Rei Narikawa
- Graduate School of Integrated Science and Technology, Shizuoka University, 422-8529 Shizuoka, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, 332-0012 Saitama, Japan
| | - Moritoshi Sato
- Graduate School of Arts and Sciences, University of Tokyo, 153-8902 Tokyo, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, 332-0012 Saitama, Japan
| | - Chong Fang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR 97331-4003, United States.
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2
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Visible light and temperature dual-responsive microgels by crosslinking of spiropyran modified prepolymers. J Colloid Interface Sci 2021; 582:1075-1084. [DOI: 10.1016/j.jcis.2020.08.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 11/21/2022]
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3
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Ortho-substitution groups promoted photo-induced E (trans) → Z (cis) isomerization. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Fedorov DA, Seritan S, Fales BS, Martínez TJ, Levine BG. PySpawn: Software for Nonadiabatic Quantum Molecular Dynamics. J Chem Theory Comput 2020; 16:5485-5498. [PMID: 32687710 DOI: 10.1021/acs.jctc.0c00575] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The ab initio multiple spawning (AIMS) method enables nonadiabatic quantum molecular dynamics simulations in an arbitrary number of dimensions, with potential energy surfaces provided by electronic structure calculations performed on-the-fly. However, the intricacy of the AIMS algorithm complicates software development, deployment on modern shared computer resources, and postsimulation data analysis. PySpawn is a nonadiabatic molecular dynamics software package that addresses these issues. The program is designed to be easily interfaced with electronic structure software, and an interface to the TeraChem software package is described here. PySpawn introduces a task-based reorganization of the AIMS algorithm, allowing fine-grained restart capability and setting the stage for efficient parallelization in a future release. PySpawn includes a user-friendly and interactive Python analysis module that will enable novice users to painlessly adopt AIMS. As a demonstration of PySpawn's simulation capability and analysis module, we report complete active space self-consistent field-based AIMS simulations of the 1,2-dithienyl-1,2-dicyanoethene molecule, a promising molecular photoswitch.
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Affiliation(s)
- Dmitry A Fedorov
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Stefan Seritan
- Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States.,SLAC National Accelerator Laboratory, Menlo Park, California 94305, United States
| | - B Scott Fales
- Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States.,SLAC National Accelerator Laboratory, Menlo Park, California 94305, United States
| | - Todd J Martínez
- Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States.,SLAC National Accelerator Laboratory, Menlo Park, California 94305, United States
| | - Benjamin G Levine
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
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5
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Honick CR, Peters GM, Young JD, Tovar JD, Bragg AE. Core structure dependence of cycloreversion dynamics in diarylethene analogs. Phys Chem Chem Phys 2020; 22:3314-3328. [DOI: 10.1039/c9cp05797h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Increased core rigidity in diarylethene-type photoswitches results in shallower excited-state potential energy surfaces and faster funneling towards the conical intersections from which cycloreversion and nonreactive deactivation occur.
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Affiliation(s)
| | | | - Jamie D. Young
- Department of Chemistry
- Johns Hopkins University
- Baltimore
- USA
| | - John D. Tovar
- Department of Chemistry
- Johns Hopkins University
- Baltimore
- USA
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6
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Li J, Bisoyi HK, Lin S, Guo J, Li Q. 1,2-Dithienyldicyanoethene-Based, Visible-Light-Driven, Chiral Fluorescent Molecular Switch: Rewritable Multimodal Photonic Devices. Angew Chem Int Ed Engl 2019; 58:16052-16056. [PMID: 31487106 DOI: 10.1002/anie.201908832] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Indexed: 12/20/2022]
Abstract
Reported here is the first example of a 1,2-dithienyldicyanoethene-based visible-light-driven chiral fluorescent molecular switch that exhibits reversible trans to cis photoisomerization. The trans form in solution almost completely transforms into the cis form, accompanied by a 10-fold decrease in its fluorescence intensity within 60 seconds when exposed to green light (520 nm). The reverse isomerization proceeds upon irradiation with blue light (405 nm). When doped into commercially available achiral liquid crystal hosts, this molecular switch efficiently induces luminescent helical superstructures, that is, a cholesteric phase. The intensity of the circularly polarized fluorescence as well as the selective reflection wavelength of the induced cholesteric phases can be reversibly tuned using visible light of two different wavelengths. Optically rewritable photonic devices using cholesteric films containing this molecular switch are described.
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Affiliation(s)
- Juntao Li
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hari Krishna Bisoyi
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
| | - Siyang Lin
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jinbao Guo
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Quan Li
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
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7
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Li J, Bisoyi HK, Lin S, Guo J, Li Q. 1,2‐Dithienyldicyanoethene‐Based, Visible‐Light‐Driven, Chiral Fluorescent Molecular Switch: Rewritable Multimodal Photonic Devices. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908832] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Juntao Li
- Key Laboratory of Carbon Fibers and Functional PolymersMinistry of Education, and College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Hari Krishna Bisoyi
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary ProgramKent State University Kent OH 44242 USA
| | - Siyang Lin
- Key Laboratory of Carbon Fibers and Functional PolymersMinistry of Education, and College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Jinbao Guo
- Key Laboratory of Carbon Fibers and Functional PolymersMinistry of Education, and College of Materials Science and EngineeringBeijing University of Chemical Technology Beijing 100029 China
| | - Quan Li
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary ProgramKent State University Kent OH 44242 USA
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8
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Young JD, Honick CR, Zhou J, Pitts CR, Ghorbani F, Peters GM, Lectka T, Tovar JD, Bragg AE. Energy- and conformer-dependent excited-state relaxation of an E/Z photoswitchable thienyl-ethene. Phys Chem Chem Phys 2019; 21:14440-14452. [PMID: 30920561 DOI: 10.1039/c9cp01226e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(bithienyl)-1,2-dicyanoethene (4TCE) is a photoswitch that operates via reversible E/Z photoisomerization following absorption of visible light. cis-to-trans photoisomerization of 4TCE requires excitation below 470 nm, is relatively inefficient (quantum yield < 5%) and occurs via the lowest-lying triplet. We present excitation-wavelength dependent (565-420 nm) transient absorption (TA) studies to probe the photophysics of cis-to-trans isomerization to identify sources of switching inefficiency. TA data reveals contributions from more than one switch conformer and relaxation cascades between multiple states. Fast (∼4 ps) and slow (∼40 ps) components of spectral dynamics observed at low excitation energies (>470 nm) are readily attributed to deactivation of two conformers; this assignment is supported by computed thermal populations and absorption strengths of two molecular geometries (PA and PB) characterized by roughly parallel dipoles for the thiophenes on opposite sides of the ethene bond. Only the PB conformer is found to contribute to triplet population and the switching of cis-4TCE: high-energy excitation (<470 nm) of PB involves direct excitation to S2, relaxation from which prepares an ISC-active S1 geometry (ISC QY 0.4-0.67, kISC∼ 1.6-2.6 × 10-9 s-1) that is the gateway to triplet population and isomerization. We ascribe low cis-to-trans isomerization yield to excitation of the nonreactive PA conformer (75-85% loss) as well as loses along the PB S2→ S1→ T1 cascade (10-20% loss). In contrast, electrocyclization is inhibited by the electronic character of the excited states, as well as a non-existent thermal population of a reactive "antiparallel" ring conformation.
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Affiliation(s)
- Jamie D Young
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Chana R Honick
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Jiawang Zhou
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Cody R Pitts
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Fereshte Ghorbani
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Garvin M Peters
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Thomas Lectka
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - John D Tovar
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
| | - Arthur E Bragg
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St, Baltimore, MD 21218, USA.
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9
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Zhang JQ, Zhang DS, Chen QJ, Xu HB, Kurmoo M, Zeng MH. Thermally Induced trans-to-cis Isomerization and Its Photoinduced Reversal Monitored using Absorption and Luminescence: Cooperative Effect of Metal Coordination and Steric Substituent. Chemistry 2019; 25:5177-5185. [PMID: 30740800 DOI: 10.1002/chem.201900204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Indexed: 11/07/2022]
Abstract
For ethene derivatives with large groups the cis-isomer is often quite unstable and unavailable. Herein, we report an exception of two stable coordination complexes, (cis-L)ZnCl2 , starting from trans-1,2-bis(1-R-benzo[d]imidazol-2-yl)ethene (R=H, L1; R=CH3 , L2) ligands under solvothermal condition (T ≥140 °C). Using the intensity of the absorption and luminescence spectra as probes we proposed its progressive cis-to-trans reversal upon irradiation with UV light, which was confirmed by powder X-ray diffraction (PXRD). Similar results observed in the series of (cis-L2)MII Cl2 [M=Fe (4), Co (5), Ni (6)] demonstrate the universal strategy. The results of PXRD, NMR spectroscopy, ESI-MS and DFT calculations support the above conclusion. NMR spectroscopy indicates that irradiation of 1 converts an optimized 71 % of the cis-isomer to trans, whereas the free trans-L1 ligand transforms to only 15 % cis-isomer under similar conditions.
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Affiliation(s)
- Jun-Quan Zhang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China
| | - De-Shan Zhang
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China
| | - Qiu-Jie Chen
- Key Laboratory for the Synthesis and Application of, Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Hai-Bing Xu
- Key Laboratory for the Synthesis and Application of, Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Mohamedally Kurmoo
- Université de Strasbourg, Institut de Chimie de Strasbourg, CNRS-UMR7177, 4 rue Blaise Pascal, Strasbourg Cedex, 67070, France
| | - Ming-Hua Zeng
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.,Key Laboratory for the Synthesis and Application of, Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
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10
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Snyder JA, Bragg AE. Ultrafast Pump-Repump-Probe Photochemical Hole Burning as a Probe of Excited-State Reaction Pathway Branching. J Phys Chem Lett 2018; 9:5847-5854. [PMID: 30226782 DOI: 10.1021/acs.jpclett.8b02489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We demonstrate pump-repump-probe (PRP) transient hole burning as a spectroscopic tool for differentiating reactive from nonreactive deactivation of excited photochemical reactants observed by transient absorption spectroscopy (TAS). This method utilizes a time-delayed, wavelength-tunable ultrafast pulse to alter the excited reactant population, with the impact of "repumping" quantified through depletions in photoproduct absorption. We apply this approach to characterize dynamics affecting the nonadiabatic photocyclization efficiency to form S0 dihydrotriphenylene (DHT) following 266 nm excitation of ortho-terphenyl (OTP). TAS studies revealed bimodal deactivation of OTP*, but neither relaxation time scale (700 fs and 3.0 ps) could be assigned unambiguously to DHT formation due to overlap of excited-state and product spectra. PRP studies reveal that S1 OTP only cyclizes on the slower of these time scales, with the faster process attributable to nonreactive deactivation. We demonstrate that this method offers greater photochemical insights without assuming models to globally fit spectral transients collected by TAS.
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Affiliation(s)
- Joshua A Snyder
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
| | - Arthur E Bragg
- Department of Chemistry , Johns Hopkins University , 3400 North Charles Street , Baltimore , Maryland 21218 , United States
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11
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Xu Z, Li S, Shen Y, Chen M, Shao X. Spiropyran-azobenzene-DBU system as solvent indicator. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Ding A, Li S, Chen Y, Jin R, Ye C, Hu J, Guo H. Visible light-induced 4-phenylthioxanthone-catalyzed aerobic oxidation of triarylphosphines. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Budyka MF, Li VM. Visible-light-driven two-way photoisomerization of 1-(1-pyrenyl)-2-(2-quinolyl)ethylene in neutral and protonated forms. Photochem Photobiol Sci 2018; 17:213-220. [PMID: 29271461 DOI: 10.1039/c7pp00359e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diarylethylenes with large π-systems often lose their photochemical activity (the size effect). 1-(1-Pyrenyl)-2-(2-quinolyl)ethylene (1P2QE), despite having a large conjugated π-system of 28 electrons, undergoes two-way reversible trans-cis photoisomerization both in the neutral and protonated forms with quantum yields as high as 0.13-0.83. For the neutral 1P2QE, experimental data and quantum-chemical calculations indicate a diabatic (nonadiabatic) reaction mechanism. Due to high photoisomerization quantum yields and the long-wavelength absorption band at 340-460 nm and 390-560 nm for the neutral and protonated compounds, respectively, 1P2QE can be used as a molecular photoswitch that is sensitive to visible light.
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Affiliation(s)
- Mikhail F Budyka
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow region 142432, Russian Federation.
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14
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15
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Wei P, Zhang JX, Zhao Z, Chen Y, He X, Chen M, Gong J, Sung HHY, Williams ID, Lam JWY, Tang BZ. Multiple yet Controllable Photoswitching in a Single AIEgen System. J Am Chem Soc 2018; 140:1966-1975. [PMID: 29332386 DOI: 10.1021/jacs.7b13364] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Seeking new methods to obtain elaborate artificial on-demand photoswitching with multiple functionalities remains challenging. Most of the systems reported so far possess only one specific function and their nonemissive nature in the aggregated state inevitably limit their applications. Herein, a tailored cyanostilbene-based molecule with aggregation-induced emission characteristic was synthesized and was found to exhibit efficient, multiple and controllable photoresponsive behaviors under different conditions. Specifically, three different reactions were involved: (i) reversible Z/E isomerization under room light and thermal treatment in CH3CN, (ii) UV-induced photocyclization with a concomitant dramatic fluorescence enhancement, and (iii) regio- and stereoselective photodimerization in aqueous medium with microcrystal formation. Experimental and theoretical analyses gave visible insights and detailed mechanisms of the photoreaction processes. Fluorescent 2D photopattern with enhanced signal-to-background ratio was fabricated based on the controllable "turn-on" and "turn-off" photobehaviors in different states. The present study thus paves an easy yet efficient way to construct smart multiphotochromes for unique applications.
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Affiliation(s)
- Peifa Wei
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Jing-Xuan Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Zheng Zhao
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Yuncong Chen
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Xuewen He
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ming Chen
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Junyi Gong
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Herman H-Y Sung
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ian D Williams
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W Y Lam
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute , No. 9 Yuexing first RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China.,Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute of Molecular Functional Materials, Institute for Advanced Study, Division of Biomedical Engineering and Division of Life Science, The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong, China.,NSFC Center for Luminescence from Molecular Aggregates, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
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16
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Huo J, Hu Z, Chen D, Luo S, Wang Z, Gao Y, Zhang M, Chen H. Preparation and Characterization of Poly-1,2,3-triazole with Chiral 2(5 H)-Furanone Moiety as Potential Optical Brightening Agents. ACS OMEGA 2017; 2:5557-5564. [PMID: 31457821 PMCID: PMC6644745 DOI: 10.1021/acsomega.7b00196] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/25/2017] [Indexed: 05/26/2023]
Abstract
A series of novel heterocyclic polymers with fluorescent brightening properties are synthesized via Click polymerization. Fast synthesis of poly-1,2,3-triazoles (M n ≥ 9.31 kDa) is described herein, with a high yield of up to 95%. The Click polymerization approach has a number of advantages, including facile operation and outstanding isolation yield. The resultant polymers have a high thermal stability, excellent UV resistance, as well as acid and light fastness. On embedding with optical brightening agents, the polymers display strong fluorescent brightening properties in the tetrahydrofuran solution. Moreover, these products have a strong solution emission intensity and extraordinary photostability under UV light.
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Affiliation(s)
- Jingpei Huo
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
- School
of Chemistry and Chemical Engineering, South
China University of Technology, Guangzhou 510641, P. R.
China
| | - Zhudong Hu
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
| | - Dongchu Chen
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
| | - Shihe Luo
- School
of Chemistry and Environment, South China
Normal University, Guangzhou 510006, P. R. China
| | - Zhaoyang Wang
- School
of Chemistry and Environment, South China
Normal University, Guangzhou 510006, P. R. China
| | - Yonghui Gao
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
| | - Min Zhang
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
| | - Hong Chen
- College
of Materials Science and Energy Engineering, Foshan University, Foshan 528000, P. R. China
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17
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Bian B, Zheng Y, Yuan P, Liao B, Chen W, Li W, Mo X, An H, Ding Y. First-principles study on photoswitching behavior and negative differential resistance in single molecule junction. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.05.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Xin JR, Guo JT, Vigliaturo D, He YH, Guan Z. Metal-free visible light driven synthesis of tetrahydroquinoline derivatives utilizing Rose Bengal. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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19
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20
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Zhou J, Folster CP, Surampudi SK, Jimenez D, Klausen RS, Bragg AE. Asymmetric charge separation and recombination in symmetrically functionalized σ–π hybrid oligosilanes. Dalton Trans 2017; 46:8716-8726. [DOI: 10.1039/c7dt00384f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The flexibility of σ-conjugated silanes presents new opportunities for controlling charge transfer via changes in molecular conformation.
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Affiliation(s)
- Jiawang Zhou
- Department of Chemistry
- Johns Hopkins University
- Baltimore
- USA
| | | | | | - Daniel Jimenez
- Department of Chemistry
- Johns Hopkins University
- Baltimore
- USA
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21
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Takeshita M, Hirowatari T, Takedomi A. E/Z isomerization of a thermally bistable photochromic dithienylethene. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Mao J, Li H, Wen H, Li M, Fan X, Bao W. Palladium-Catalyzed Two-Component Domino Coupling Reaction of (Z)-β-Bromostyrenes with Norbornenes: Synthesis of 1,5-Enynes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500865] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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