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Tatsi E, Nitti A, Pasini D, Griffini G. Aggregation-induced emissive nanoarchitectures for luminescent solar concentrators. NANOSCALE 2024; 16:15502-15514. [PMID: 39073376 DOI: 10.1039/d4nr01910e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Aggregation-induced emission (AIE), the phenomenon by which selected luminophores undergo the enhancement of emission intensity upon aggregation, has demonstrated potential in materials and biomaterials science, and in particular in those branches for which spectral management in the solid state is of fundamental importance. Its development in the area of luminescent spectral conversion devices like luminescent solar concentrators (LSCs) is instead still in its infancy. This account aims at summarizing relevant contributions made in this field so far, with a special emphasis on the design of molecular and macromolecular architectures capable of extending their spectral breadth to the deep-red (DR) and the near-infrared (NIR) wavelengths. Because of the many prospective advantages characterizing these spectral regions in terms of photon flux density and human-eye perception, it is anticipated that further development in the design, synthesis and engineering of advanced molecular and macromolecular DR/NIR-active AIE luminophores will enable faster and easier integration of LSCs into the built environment as highly transparent, active elements for unobtrusive light-to-electricity conversion.
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Affiliation(s)
- Elisavet Tatsi
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Viale Taramelli 10, Pavia 27100, Italy.
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Viale Taramelli 10, Pavia 27100, Italy.
| | - Gianmarco Griffini
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
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2
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Das P, Grinalds NJ, Ghiviriga I, Abboud KA, Dobrzycki Ł, Xue J, Castellano RK. Dicyanorhodanine-Pyrrole Conjugates for Visible Light-Driven Quantitative Photoswitching in Solution and the Solid State. J Am Chem Soc 2024; 146:11932-11943. [PMID: 38629510 DOI: 10.1021/jacs.4c00983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Small molecule photoswitches capable of toggling between two distinct molecular states in response to light are versatile tools to monitor biological processes, control photochemistry, and design smart materials. In this work, six novel dicyanorhodanine-based pyrrole-containing photoswitches are reported. The molecular design avails both the Z and E isomers from synthesis, where each can be isolated using chromatographic techniques. Inter- and intramolecular hydrogen bonding (H-bonding) interactions available to the E and Z isomers, respectively, uniquely impart thermal stability to each isomer over long time periods. Photoisomerization could be assessed by solution NMR and UV-vis spectroscopic techniques along with complementary ground- and excited-state computational studies, which show good agreement. Quantitative E → Z isomerization occurs upon 523 nm irradiation of the parent compound (where R = H) in solution, whereas Z → E isomerization using 404 nm irradiation offers a photostationary state (PSS) ratio of 84/16 (E/Z). Extending the π-conjugation of the pyrrole unit (where R = p-C6H4-OMe) pushes the maximum absorption to the yellow-orange region of the visible spectrum and allows bidirectional quantitative isomerization with 404 and 595 nm excitation. Comparator molecules have been prepared to report how the presence or absence of H-bonding affects the photoswitching behavior. Finally, studies of the photoswitches in neat films and photoinactive polymer matrices reveal distinctive structural and optical properties of the Z and E isomers and ultimately afford reversible photoswitching to spectrally unique PSSs using visible light sources including the Sun.
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Affiliation(s)
- Parag Das
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, Florida 32611, United States
| | - Nathan J Grinalds
- Department of Materials Science and Engineering, University of Florida, P. O. Box 116400, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A Abboud
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, Florida 32611, United States
| | - Łukasz Dobrzycki
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, Florida 32611, United States
| | - Jiangeng Xue
- Department of Materials Science and Engineering, University of Florida, P. O. Box 116400, Gainesville, Florida 32611, United States
| | - Ronald K Castellano
- Department of Chemistry, University of Florida, P. O. Box 117200, Gainesville, Florida 32611, United States
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3
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Zeng Y, Qu J, Wu G, Zhao Y, Hao J, Dong Y, Li Z, Shi J, Francisco JS, Zheng X. Two Key Descriptors for Designing Second Near-Infrared Dyes and Experimental Validation. J Am Chem Soc 2024; 146:9888-9896. [PMID: 38546165 DOI: 10.1021/jacs.3c14805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Second near-infrared (NIR-II) optical imaging technology has emerged as a powerful tool for diagnostic and image-guided surgery due to its higher imaging contrast. However, a general strategy for efficiently designing NIR-II organic molecules is still lacking, because NIR-II dyes are usually difficult to synthesize, which has impeded the rapid development of NIR-II bioprobes. Herein, based on the theoretical calculations on 62 multiaryl-pyrrole (MAP) systems with spectra ranging from the visible to the NIR-II region, a continuous red shift of the spectra toward the NIR-II region could be achieved by adjusting the type and site of substituents on the MAPs. Two descriptors (ΔEgs and μgs) were identified as exhibiting strong correlations with the maximum absorption/emission wavelengths, and the descriptors could be used to predict the emission spectrum in the NIR-II region only if ΔEgs ≤ 2.5 eV and μgs ≤ 22.55 D. The experimental absorption and emission spectra of ten MAPs fully confirmed the theoretical predictions, and biological imaging in vivo of newly designed MAP23-BBT showed high spatial resolution in the NIR-II region in deep tissue angiography. More importantly, both descriptors of ΔEgs and μgs have shown general applicability to most of the reported donor-acceptor-donor-type non-MAP NIR-II dyes. These results have broad implications for the efficient design of NIR-II dyes.
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Affiliation(s)
- Yi Zeng
- Key Laboratory of Cluster Science of Ministry of Education, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, Beijing Key Laboratory of Photoelectroic/Electro-Photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiamin Qu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Guanghao Wu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yeyun Zhao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiaman Hao
- Key Laboratory of Cluster Science of Ministry of Education, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, Beijing Key Laboratory of Photoelectroic/Electro-Photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Zesheng Li
- Key Laboratory of Cluster Science of Ministry of Education, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, Beijing Key Laboratory of Photoelectroic/Electro-Photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Joseph S Francisco
- Department of Earth and Environmental Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6316, United States
| | - Xiaoyan Zheng
- Key Laboratory of Cluster Science of Ministry of Education, Key Laboratory of Medicinal Molecule Science and Pharmaceutics Engineering of Ministry of Industry and Information Technology, Beijing Key Laboratory of Photoelectroic/Electro-Photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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4
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Brandner L, Müller TJJ. Multicomponent synthesis of chromophores – The one-pot approach to functional π-systems. Front Chem 2023; 11:1124209. [PMID: 37007054 PMCID: PMC10065161 DOI: 10.3389/fchem.2023.1124209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/26/2023] [Indexed: 03/19/2023] Open
Abstract
Multicomponent reactions, conducted in a domino, sequential or consecutive fashion, have not only considerably enhanced synthetic efficiency as one-pot methodology, but they have also become an enabling tool for interdisciplinary research. The highly diversity-oriented nature of the synthetic concept allows accessing huge structural and functional space. Already some decades ago this has been recognized for life sciences, in particular, lead finding and exploration in pharma and agricultural chemistry. The quest for novel functional materials has also opened the field for diversity-oriented syntheses of functional π-systems, i.e. dyes for photonic and electronic applications based on their electronic properties. This review summarizes recent developments in MCR syntheses of functional chromophores highlighting syntheses following either the framework forming scaffold approach by establishing connectivity between chromophores or the chromogenic chromophore approach by de novo formation of chromophore of interest. Both approaches warrant rapid access to molecular functional π-systems, i.e. chromophores, fluorophores, and electrophores for various applications.
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Han Z, Deng Y, Liu X, Zhang P, Lu X. Study on the Electrochemiluminescence of Pentaphenylpyrrole in the Aqueous Phase Based on Structure-Regulated Strategy. Anal Chem 2022; 94:17709-17715. [PMID: 36475658 DOI: 10.1021/acs.analchem.2c04646] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocyclic nitrogen compounds play a vital role in luminescent materials, but most of them face the challenges of aggregation-caused quenching (ACQ) and poor water solubility. In this work, we present the nitrogen heterocyclic pentaphenylpyrrole (PentaPP) with an excellent aggregation-induced electrochemiluminescence (AIE-ECL) performance in the aqueous phase through the comparison of the elegant ECL luminophore 5,10,15,20-tetraphenylporphyrin (TPP). Further studies suggest that such unique AIE-ECL arises from its propeller-like noncoplanar structure and the large conjugation from the phenyl groups on the ring. In addition, the new ECL analysis could feature some advantages of AIE characteristic, water compatibility, and strong signal and finally achieve the ultrasensitive detection toward the explosive 2,4,6-trinitrophenol (TNP) with a lower detection limit (1.1 nM). This study does not only benefit to solve the two key problems mentioned before but also enriches the fundamentals and applications for ECL and pyrrole research.
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Affiliation(s)
- Zhengang Han
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Yanfang Deng
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Xiujuan Liu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Pengping Zhang
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
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Han Z, Yu X, Sang Y, Xu Y, Zhao A, Lu X. Aromaticity-Enhanced pH-Responsive Electrochemiluminescence of Cyclopentadienols. Anal Chem 2022; 94:6036-6043. [PMID: 35384644 DOI: 10.1021/acs.analchem.2c00717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Due to significantly tackling the problems of aggregation-caused quenching and water insolubility, aggregation-induced emission electrochemiluminescence (AIE-ECL) has emerged as a research highlight in aqueous detection and sensing. Herein, we reported a series of cyclopentadienols featuring excellent AIE-ECL properties on the basis of an enhanced aromaticity strategy. In detail, substituents profoundly determined ECL emission by affecting the characteristic absorption peak intensity ratio in UV-vis spectra and lowest unoccupied molecular orbital (LUMO)-highest occupied molecular orbital (HOMO) energies. It was found that 1,2,3,4,5-pentafluorophenyl cyclopentadienol (PFCD) containing an electron-withdrawing fluorine substituent, the maximum R/B band ratio, and a smaller LUMO-HOMO band gap demonstrated the best ECL performance. Meanwhile, such an AIE-ECL system displayed a wide response range toward pH (4-12) with a good linear relationship. Our research not only enriched polycyclic aromatic hydrocarbon-based AIE-ECL systems but also established an efficient pH sensor in the aqueous phase.
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Affiliation(s)
- Zhengang Han
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Xinyao Yu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yuyang Sang
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yanhong Xu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Aijuan Zhao
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
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7
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Zheng A, Zhao T, Jin X, Miao W, Duan P. Circularly polarized luminescent porous crystalline nanomaterials. NANOSCALE 2022; 14:1123-1135. [PMID: 35018958 DOI: 10.1039/d1nr07069j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Circularly polarized luminescence (CPL)-active materials have attracted exclusive attention because of their wide potential applications in low-power-consumption displays, encrypted information storage, chiroptical sensors, and so on. However, there is always a trade-off between the luminescence dissymmetry factor (glum) and luminescence quantum yield, which are two critical parameters. Therefore, developing materials with both large glum values and high luminescence efficiency is a key issue for constructing high-efficiency CPL materials. To date, chiral porous crystalline nanomaterials (PCNMs) including metal-organic frameworks (MOFs), porous organic-cages (POCs), metal-organic cages (MOCs), and supramolecular organic frameworks (SOFs), have shown excellent potential for solving this problem and achieving functional CPL-active materials. In this review, we will summarize several approaches for fabricating CPL-active PCNMs, such as direct synthesis, chirality induction, and symmetry breaking. Furthermore, with flexibly tunable structures and comprehensive host-guest chemistry, modulation and amplification of CPL can be achieved in these PCNMs. We would like to provide insight and perspective that PCNMs can act as an efficient platform in the CPL research field.
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Affiliation(s)
- Anyi Zheng
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Tonghan Zhao
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xue Jin
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing 100190, P. R. China.
| | - Wangen Miao
- School of Chemistry and Chemical Engineering, Institute of Physical Chemistry, Lingnan Normal University, Zhanjiang, 524048, P. R. China
| | - Pengfei Duan
- CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology (NCNST), No. 11 ZhongGuanCun BeiYiTiao, Beijing 100190, P. R. China.
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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8
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Abstract
Metal-catalyzed hydrofunctionalization reactions of alkynes, i.e., the addition of Y–H units (Y = heteroatom or carbon) across the carbon–carbon triple bond, have attracted enormous attention for decades since they allow the straightforward and atom-economic access to a wide variety of functionalized olefins and, in its intramolecular version, to relevant heterocyclic and carbocyclic compounds. Despite conjugated 1,3-diynes being considered key building blocks in synthetic organic chemistry, this particular class of alkynes has been much less employed in hydrofunctionalization reactions when compared to terminal or internal monoynes. The presence of two C≡C bonds in conjugated 1,3-diynes adds to the classical regio- and stereocontrol issues associated with the alkyne hydrofunctionalization processes’ other problems, such as the possibility to undergo 1,2-, 3,4-, or 1,4-monoadditions as well as double addition reactions, thus increasing the number of potential products that can be formed. In this review article, metal-catalyzed hydrofunctionalization reactions of these challenging substrates are comprehensively discussed.
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Abstract
This review highlights the hydroelementation reactions of conjugated and separated diynes, which depending on the process conditions, catalytic system, as well as the type of reagents, leads to the formation of various products: enynes, dienes, allenes, polymers, or cyclic compounds. The presence of two triple bonds in the diyne structure makes these compounds important reagents but selective product formation is often difficult owing to problems associated with maintaining appropriate reaction regio- and stereoselectivity. Herein we review this topic to gain knowledge on the reactivity of diynes and to systematise the range of information relating to their use in hydroelementation reactions. The review is divided according to the addition of the E-H (E = Mg, B, Al, Si, Ge, Sn, N, P, O, S, Se, Te) bond to the triple bond(s) in the diyne, as well as to the type of the reagent used, and the product formed. Not only are the hydroelementation reactions comprehensively discussed, but the synthetic potential of the obtained products is also presented. The majority of published research is included within this review, illustrating the potential as well as limitations of these processes, with the intent to showcase the power of these transformations and the obtained products in synthesis and materials chemistry.
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Affiliation(s)
- Jędrzej Walkowiak
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan.
| | - Jakub Szyling
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan. .,Adam Mickiewicz University in Poznan, Faculty of Chemistry, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
| | - Adrian Franczyk
- Adam Mickiewicz University in Poznan, Center for Advanced Technology, Uniwersytetu Poznanskiego 10, 61-614, Poznan.
| | - Rebecca L Melen
- Cardiff Catalysis Institute, Cardiff University, School of Chemistry, Park Place, Main Building, Cardiff CF10 3AT, Cymru/Wales, UK.
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Babar SS, Boddula R, Singh SP. [1]Benzothieno[3,2-b][1]benzothiophene-Based Dyes: Effect of Ancillary Moiety on Mechanochromism and Aggregation-Induced Emission. Phys Chem Chem Phys 2022; 24:15110-15120. [DOI: 10.1039/d2cp01934e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It is an established fact that [1]benzothieno[3,2-b][1]benzothiophene (BTBT) is a champion molecule for high mobility OFETs devices. Recently it is also utilized in dye-sensitized solar cells (DSSCs) and organic photovoltaics...
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Zhang L, Wang Y, Zhu G, Dai W, Zhao Z, Zhao Y, Zhi J, Dong Y. Aggregation-Induced Emission and Mechanochromism of the Tetraphenylbutadiene Derivatives Containing Different Alkyl Chains. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21120556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Dai D, Yang J, Yang YW. Supramolecular Assembly with Aggregation-Induced Emission Property for Sensing and Detection. Chemistry 2021; 28:e202103185. [PMID: 34622985 DOI: 10.1002/chem.202103185] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Indexed: 12/31/2022]
Abstract
The fabrication of new supramolecular materials for real-time detection of analytes including ions, organic pollutants, gases, biomolecules, and drugs is of pivotal importance in industrial manufacture, clinical treatment, and environmental remediation. Incorporating fluorescent molecules with distinct aggregation-induced emission (AIE) effects into supramolecular assemblies has received much attention over the past two decades, owing to the remarkable performance of the AIE-active supramolecular materials in sensing and detection. In this minireview, we summarize the recent progress of superior detection systems on the basis of supramolecular assemblies accompanied with AIE features. We envision that this minireview will be helpful and timely for relevant researchers to stimulate new thinking for constructing new AIE-based supramolecular materials with advanced architectures for effective sensing and detection.
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Affiliation(s)
- Dihua Dai
- Jilin University, College of Chemistry, CHINA
| | - Jie Yang
- Jilin University, College of Chemistry, CHINA
| | - Ying-Wei Yang
- Jilin University, College of Chemistry, 2699 Qianjin Street, 130012, Changchun, CHINA
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Chen S, Luo R, Li X, He M, Fu S, Xu J. Aggregation Induced Emission and Nonlinear Optical Properties of an Intramolecular Charge-Transfer Compound. MATERIALS 2021; 14:ma14081909. [PMID: 33920435 PMCID: PMC8069476 DOI: 10.3390/ma14081909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/03/2021] [Accepted: 04/03/2021] [Indexed: 11/16/2022]
Abstract
Intramolecular charge transfer (ICT) compounds have attracted wide attention for their potential applications in optoelectronic materials and devices such as fluorescent sensors, dye-sensitized solar cells, organic light emitting diodes and nonlinear optics. In this work, we have synthesized a new ICT compound, dimethyl-[4-(7-nitro-benzo[1,2,5]thiadiazol-4-yl)-phenyl]-amine (BTN), and have fabricated it into low dimensional micro/nano structures with well-defined morphologies. These self-assembled nanostructures exhibit high efficiency solid state fluorescence via an aggregation induced emission mechanism, which overcomes the defect of fluorescence quenching caused by aggregation in the solid state of traditional luminescent materials. We also explored and studied the nonlinear optical properties of this material through the Z-scan method, and found that this material exhibits large third-order nonlinear absorption and refraction coefficients, which promises applications of the materials in the fields of nonlinear optics and optoelectronics.
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Affiliation(s)
- Songhua Chen
- College of Chemistry and Material Science, Longyan University, Longyan 364012, China; (S.C.); (M.H.); (S.F.)
| | - Rui Luo
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, China; (R.L.); (X.L.)
| | - Xinyue Li
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, China; (R.L.); (X.L.)
| | - Meiyun He
- College of Chemistry and Material Science, Longyan University, Longyan 364012, China; (S.C.); (M.H.); (S.F.)
| | - Shanshan Fu
- College of Chemistry and Material Science, Longyan University, Longyan 364012, China; (S.C.); (M.H.); (S.F.)
| | - Jialiang Xu
- School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tongyan Road 38, Tianjin 300350, China; (R.L.); (X.L.)
- Correspondence:
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14
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Leith GA, Martin CR, Mayers JM, Kittikhunnatham P, Larsen RW, Shustova NB. Confinement-guided photophysics in MOFs, COFs, and cages. Chem Soc Rev 2021; 50:4382-4410. [PMID: 33594994 DOI: 10.1039/d0cs01519a] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this review, the dependence of the photophysical response of chromophores in the confined environments associated with crystalline scaffolds, such as metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and molecular cages, has been carefully evaluated. Tunability of the framework aperture, cavity microenvironment, and scaffold topology significantly affects emission profiles, quantum yields, or fluorescence lifetimes of confined chromophores. In addition to the role of the host and its effect on the guest, the methods for integration of a chromophore (e.g., as a framework backbone, capping linker, ligand side group, or guest) are discussed. The overall potential of chromophore-integrated frameworks for a wide-range of applications, including artificial biomimetic systems, white-light emitting diodes, photoresponsive devices, and fluorescent sensors with unparalleled spatial resolution are highlighted throughout the review.
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Affiliation(s)
- Gabrielle A Leith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29210, USA.
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15
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Chen Z, Shi G, Tang W, Sun J, Wang W. Electrochemical Oxidative Cyclization: Synthesis of Polysubstituted Pyrrole from Enamines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001484] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zhiwei Chen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Guang Shi
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Wei Tang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Jie Sun
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Wenxing Wang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
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16
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Chang D, Chen J, Liu Y, Huang H, Qin A, Deng GJ. Metal-Free Synthesis and Photophysical Properties of 1,2,4-Triarylpyrroles. J Org Chem 2020; 86:110-127. [DOI: 10.1021/acs.joc.0c01788] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dan Chang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jinjin Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yong Liu
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Anjun Qin
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
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17
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Li JK, Zhou B, Tian YC, Jia C, Xue XS, Zhang FG, Ma JA. Potassium Acetate-Catalyzed Double Decarboxylative Transannulation To Access Highly Functionalized Pyrroles. Org Lett 2020; 22:9585-9590. [DOI: 10.1021/acs.orglett.0c03621] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jun-Kuan Li
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, People’s Republic of China
| | - Biying Zhou
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yu-Chen Tian
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, People’s Republic of China
| | - Chunman Jia
- Hainan Provincial Key Lab of Fine Chemistry, Hainan University, Haikou, Hainan 570228, People’s Republic of China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Fa-Guang Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, People’s Republic of China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Frontiers Science Center for Synthetic Biology (Ministry of Education), and Tianjin Collaborative Innovation Centre of Chemical Science & Engineering, Tianjin University, Tianjin 300072, People’s Republic of China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, People’s Republic of China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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18
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Kasprzak A, Guńka PA, Kowalczyk A, Nowicka AM. Synthesis and structural, electrochemical and photophysical studies of triferrocenyl-substituted 1,3,5-triphenylbenzene: a cyan-light emitting molecule showing aggregation-induced enhanced emission. Dalton Trans 2020; 49:14807-14814. [PMID: 33094773 DOI: 10.1039/d0dt02948c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Triferrocenyl-substituted 1,3,5-triphenylbenzene was successfully synthesized in high yield. Single-crystal X-ray diffraction experiments revealed that the internal rotations of the ferrocenyl moieties are significantly restricted in the solid phase and that there are no significant π stacking interactions therein. The photoluminescence of the crystals is essentially the same as that of dilute chloroform solutions. However, studies of this cyan-light emitting substance in mixtures of chloroform and methanol revealed the aggregation-induced enhanced emission (AIEE) feature that boosts its fluorescence quantum yield from 13% up to 74%. We demonstrate the AIEE effect for a new class of easy-to-prepare aromatic molecules containing several metallocene units for the first time.
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Affiliation(s)
- Artur Kasprzak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego Str. 3, 00-664 Warsaw, Poland.
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19
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Sang P, Shi Y, Huang B, Xue S, Odom T, Cai J. Sulfono-γ-AApeptides as Helical Mimetics: Crystal Structures and Applications. Acc Chem Res 2020; 53:2425-2442. [PMID: 32940995 DOI: 10.1021/acs.accounts.0c00482] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Foldamers have defined and predictable structures, improved resistance to proteolytic degradation, enhanced chemical diversity, and are versatile in their mimicry of biological molecules, making them promising candidates in biomedical and material applications. However, as natural macromolecules exhibit endless folding structures and functions, the exploration of the applications of foldamers remains crucial. As such, it is imperative to continue to discover unnatural foldameric architectures with new frameworks and molecular scaffolds. To this end, we recently developed a new class of peptidomimetics termed ″γ-AApeptides", oligomers of γ-substituted-N-acylated-N-aminoethyl amino acids, which are inspired by the chiral peptide nucleic acid backbone. To date γ-AApeptides have been shown to be resistant to proteolytic degradation and possess limitless potential to introduce chemically diverse functional groups, demonstrating promise in biomedical and material sciences. However, the structures of γ-AApeptides were initially unknown, rendering their rational design for the mimicry of a protein helical domain impossible in the beginning, which limited their potential development. To our delight, in the past few years, we have obtained a series of crystal structures of helical sulfono-γ-AApeptides, a subclass of γ-AApeptides. The single-crystal X-ray crystallography indicates that sulfono-γ-AApeptides fold into unprecedented and well-defined helices with unique helical parameters. On the basis of the well-established size, shape, and folding conformation, the design of sulfono-γ-AApeptide-based foldamers opens a new avenue for the development of alternative unnatural peptidomimetics for their potential applications in chemistry, biology, medicine, materials science, and so on.In this Account, we will outline our journey on sulfono-γ-AApeptides and their application as helical mimetics. We will first briefly introduce the design and synthetic strategy of sulfono-γ-AApeptides and then describe the crystal structures of helical sulfono-γ-AApeptides, including left-handed homogeneous sulfono-γ-AApeptides, right-handed 1:1 α/sulfono-γ-AA peptide hybrids, and right-handed 2:1 α/sulfono-γ-AA peptide hybrids. After that, we will illustrate the potential of helical sulfono-γ-AApeptides for biological applications such as the disruption of medicinally relevant protein-protein interactions (PPIs) of BCL9-β-catenin and p53-MDM2/MDMX as well as the mimicry of glucagon-like peptide 1 (GLP-1). In addition, we also exemplify their potential application in material science. We expect that this Account will shed light on the structure-based design and function of helical sulfono-γ-AApeptides, which can provide a new and alternative way to explore and generate novel foldamers with distinctive structural and functional properties.
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Affiliation(s)
- Peng Sang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Yan Shi
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Bo Huang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Songyi Xue
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Timothy Odom
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
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20
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Qu H, Huang Z, Dong X, Wang X, Tang X, Li Z, Gao W, Liu H, Huang R, Zhao Z, Zhang H, Yang L, Tian Z, Cao X. Truncated Face-Rotating Polyhedra Constructed from Pentagonal Pentaphenylpyrrole through Graph Theory. J Am Chem Soc 2020; 142:16223-16228. [PMID: 32886877 DOI: 10.1021/jacs.0c08243] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Discovering novel families of molecular polyhedra through graph theory has attracted increasing interest. Nevertheless, the design principles of molecular polyhedra based on graph theory remain elusive, especially for those containing five-node units. Herein, we construct a series of chiral truncated face-rotating polyhedra (T-FRP) from pentagonal pentaphenylpyrrole (PPP) derivatives and chiral diamines. Graph theory is used to elucidate the geometry of these novel T-FRP, which represent a new family of molecular polyhedra. The phenyl flipping of PPP faces in these T-FRP is significantly restricted, thus making T-FRP chiral and strongly emissive in solution. In addition, T-FRP also generate circularly polarized luminescence. This study provides new insights into the rational design of novel molecular polyhedra through graph theory.
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Affiliation(s)
- Hang Qu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zheyu Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Xue Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Xinchang Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Xiao Tang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zhihao Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Wenbin Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Haoliang Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Ruishan Huang
- State Key Laboratory of Luminescent Materials and Devices Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, P.R. China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, P.R. China
| | - Hui Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Liulin Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Xiaoyu Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
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21
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Qian Y, Shang J, Lyu Z, Huang X, Guan A, Xu L, Gong H. Synthesis of
π‐Extended
Carbazoles via
One‐Pot
C—C Coupling and Chlorination Promoted by
FeCl
3
. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yang Qian
- Department of Chemistry, Renmin University of China Zhongguancundajie 59 Beijing 100872 China
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Jia Shang
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Zhen‐Hua Lyu
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Xin Huang
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Ai‐jiao Guan
- Institute of Chemistry, Chinese Academy of Sciences Zhongguancunbeiyijie 2 Beijing 100190 China
| | - Li‐Jin Xu
- Department of Chemistry, Renmin University of China Zhongguancundajie 59 Beijing 100872 China
| | - Han‐Yuan Gong
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
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22
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Pati C, Ghosh S, Ghosh K. Dipyrromethane Decorated Gelator in Anion Recognition and Solvent‐Dependent Aggregation‐Induced Emission. ChemistrySelect 2020. [DOI: 10.1002/slct.202002763] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chiranjit Pati
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
| | - Sumit Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
| | - Kumaresh Ghosh
- Department of ChemistryUniversity of Kalyani Kalyani 741235 India
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23
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Shi Y, Sang P, Yin G, Gao R, Liang X, Brzozowski R, Odom T, Eswara P, Zheng Y, Li X, Cai J. Aggregation-Induced Emissive and Circularly Polarized Homogeneous Sulfono-γ-AApeptide Foldamers. ADVANCED OPTICAL MATERIALS 2020; 8:1902122. [PMID: 33072491 PMCID: PMC7567131 DOI: 10.1002/adom.201902122] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/22/2020] [Indexed: 05/13/2023]
Abstract
Through our continuous effort in developing a new class of foldamers, we have both designed and synthesized homogenous sulfono-γ-AApeptides using tetraphenylethylene (TPE) moieties attached to the backbone as luminogenic sidechains. Based on previous crystal structures, we have found that these foldamers adopted a left-handed 414-helix. Due to the constraint of the helical scaffold, the rotation of the TPE moieties were restricted, leading to fluorescent emissive properties with high quantum yields not only at the aggregate state but also in solution. Investigation of the relationship between the structure and fluorescence behavior reveals that emission was induced by the combined effect of the aggregation-induced emission (AIE) and the rotated restriction from the backbone. Furthermore, as the packing mode of the luminogens could be precisely adjusted by the helical backbone, these foldamers were found to be circularly polarizable with relatively large luminescence dissymmetry factor (g lum). Interestingly, possessing cationic amphipathic structures similar to that of host-defense peptides (HDPs), these sulfono-γ-AApeptides were able to inhibit the growth of Gram-positive bacteria methicillin-resistant S. aureus (MRSA) through membrane interactions.
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Affiliation(s)
- Yan Shi
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Peng Sang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Guangqiang Yin
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Ruixuan Gao
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Xiao Liang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Robert Brzozowski
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Timothy Odom
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Prahathees Eswara
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Youxuan Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 210023 Nanjing, China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
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24
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Roy E, Nagar A, Chaudhary S, Pal S. Advanced Properties and Applications of AIEgens-Inspired Smart Materials. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01869] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ekta Roy
- Department of Chemistry, Government Engineering College Jhalawar, Jhalawar, Rajasthan 326023, India
| | - Achala Nagar
- Department of Chemistry, Government Engineering College Jhalawar, Jhalawar, Rajasthan 326023, India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Rajasthan 302017, India
| | - Souvik Pal
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677, R.O.C
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25
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Khafizova LO, Shaibakova MG, Richter NA, Dzhemilev UM. Synthesis of 2,3,5-Substituted 1H-Pyrroles by a Cp2TiCl2-catalyzed Multicomponent Reaction of Terminal Alkynes with Nitriles and EtAlCl2. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020020074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Affiliation(s)
- Ankush Gupta
- Department of ChemistryDAV University, Jalandhar, Punjab India
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27
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Cardoza S, Das P, Tandon V. Pd-Catalyzed Sequential Arylation of 7-Azaindoles: Aggregate-Induced Emission of Tetra-Aryl 7-Azaindoles. J Org Chem 2019; 84:14015-14029. [DOI: 10.1021/acs.joc.9b02187] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Savio Cardoza
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Parthasarathi Das
- Department of Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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28
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Sawato T, Yuzawa R, Kobayashi H, Saito N, Yamaguchi M. Formation and dissociation of synthetic hetero-double-helix complex in aqueous solutions: significant effect of water content on dynamics of structural change. RSC Adv 2019; 9:29456-29462. [PMID: 35528401 PMCID: PMC9071914 DOI: 10.1039/c9ra06073a] [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: 08/05/2019] [Accepted: 09/08/2019] [Indexed: 11/21/2022] Open
Abstract
A 1 : 1 mixture of the ethynylhelicene pseudoenantiomers (M)-tetramer and (P)-pentamer, which possess hydrophilic terminal tri(ethyleneglycol) (TEG) groups, changes their structures in the water-THF (10 μM) solvent system between dissociated random-coils and an associated hetero-double-helix upon heating and cooling. A small change in water content between 30 and 33% significantly affects the dynamics of structural changes. At 30% water content, heating to 60 °C causes rapid formation of random-coil and cooling to 10 °C causes the rapid formation of hetero-double-helix, accompanied by repeated changes in Δε at 369 nm between 0 and -2000 cm-1 M-1. Heating and cooling experiments at constant rates between 60 and 10 °C resulted in sigmoidal curves in Δε/temperature profiles, which indicate rapid structural changes. Different phenomena occurred at 33% water content. Heating to 60 °C and cooling to 0 °C initially induced changes in Δε between 0 and -2000 cm-1 M-1, and repeated cycles gradually reduced the range between 0 and -500 cm-1 M-1. Heating and cooling experiments at constant rates between 60 and 10 °C caused small changes in Δε, and repeated cycles at 10 °C gradually increased Δε to -500 cm-1 M-1. These phenomena involved rapid changes in molecular structure and slow structural changes in the water-THF solvent system. The sharp switching of the dynamics of structural changes at water content between 30 and 33% indicated discontinuous structural changes in the hydration of TEG and/or in water clusters in the vicinity of oligomer molecules.
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Affiliation(s)
- Tsukasa Sawato
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University Aoba Sendai 980-8578 Japan +81-22-795-6811
| | - Ryosuke Yuzawa
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University Aoba Sendai 980-8578 Japan +81-22-795-6811
| | - Higashi Kobayashi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University Aoba Sendai 980-8578 Japan +81-22-795-6811
| | - Nozomi Saito
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University Aoba Sendai 980-8578 Japan +81-22-795-6811
| | - Masahiko Yamaguchi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University Aoba Sendai 980-8578 Japan +81-22-795-6811
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29
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Shi Y, Yin G, Yan Z, Sang P, Wang M, Brzozowski R, Eswara P, Wojtas L, Zheng Y, Li X, Cai J. Helical Sulfono-γ-AApeptides with Aggregation-Induced Emission and Circularly Polarized Luminescence. J Am Chem Soc 2019; 141:12697-12706. [PMID: 31335135 PMCID: PMC10484567 DOI: 10.1021/jacs.9b05329] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Aggregation-induced emission (AIE) was intensively studied because of packing of small molecules and polymers; however, mid-molecular-weight (1000-3000) molecular scaffold containing a precise number of AIE luminogens is rare. Herein, we report the investigation of three tetraphenylethylene (TPE)-modified sulfono-γ-AApeptides in which multiple TPE moieties are conjugated to the chiral right-handed helical peptidomimetic backbone as functional side chains. The crystal structure of the TPE-α/sulfono-γ-AA peptide 1 demonstrates that because of the rigid helical scaffold of the TPE-α/sulfono-γ-AA peptides, the intramolecular rotations of the TPE with short linker are restricted, therefore leading to the boosted fluorescent emission in solution. Peptides 2 and 3 exhibit aggregation-induced emission enhancement (AIEE), possibly because of the combination of both AIE and rotation restriction. Moreover, because of their preoriented assembly induced by the right-handed helical scaffold, these emissive chiral luminogens show effective circularly polarized luminescence signals with high dissymmetry factor glum. Finally, the amphiphilic nature of TPE-α/sulfono-γ-AA peptides could enable them to penetrate the bacterial membranes and exhibit strong fluorescence. Their antimicrobial activity and labeling-free character could further augment their potential applications in both materials and biomedical sciences.
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Affiliation(s)
- Yan Shi
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Guangqiang Yin
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Zhiping Yan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Peng Sang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Minghui Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Robert Brzozowski
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Prahathees Eswara
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Youxuan Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
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30
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Okawara T, Matsufuji Y, Mizuno K, Takehara K, Nagamura T, Iwasa S. Vinylpyrroles: solid-state structures and aggregation-induced emission properties. RSC Adv 2019; 9:22817-22822. [PMID: 35514514 PMCID: PMC9067133 DOI: 10.1039/c9ra04088a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/16/2019] [Indexed: 11/21/2022] Open
Abstract
An aggregation-induced emission chromophore, vinylpyrrole, was prepared from a formylpyrrole derivative, Meldrum's acid, and 1,3-dimethylbarbituric acid. The optical properties of the chromophore both in the solution and solid states were investigated by UV-vis and fluorescence spectroscopy. Single crystal X-ray diffraction measurements revealed that the dimethylbarbituric acid adduct formed a J-aggregate in the solid and resulted in higher fluorescence quantum yield compared to the Meldrum's acid adduct. Emission enhancement was found to occur by the restriction of molecular rotation in the solid state. A cyclic ester and a cyclic amide functionalized monopyrroles show aggregation-induced emission (AIE) by the restriction of intramolecular rotation (RIR) mechanism.![]()
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Affiliation(s)
- Toru Okawara
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan
| | - Yurina Matsufuji
- Advanced School of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan
| | - Kouhei Mizuno
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan
| | - Kenji Takehara
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan
| | - Toshihiko Nagamura
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College Shii 5-20-1, Kokuraminami-ku, Kitakyushu Fukuoka 802-0985 Japan .,Advanced Manufacturing Research Institute Biochemical Process Research Group, National Institute of Advanced Industrial Science and Technology (AIST) 807-1 Shuku-machi, Tosu Saga 841-0052 Japan
| | - Seiji Iwasa
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology 1-1 Tempaku-cho, Toyohashi Aichi 441-8580 Japan
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31
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Suleymanov AA, Ruggi A, Planes OM, Chauvin A, Scopelliti R, Fadaei Tirani F, Sienkiewicz A, Fabrizio A, Corminboeuf C, Severin K. Highly Substituted Δ
3
‐1,2,3‐Triazolines: Solid‐State Emitters with Electrofluorochromic Behavior. Chemistry 2019; 25:6718-6721. [DOI: 10.1002/chem.201901345] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Abdusalom A. Suleymanov
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Albert Ruggi
- Département de ChimieUniversité de Fribourg 1700 Fribourg Switzerland
| | - Ophélie Marie Planes
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Anne‐Sophie Chauvin
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Farzaneh Fadaei Tirani
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Andrzej Sienkiewicz
- Institute of PhysicsÉcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Alberto Fabrizio
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Clémence Corminboeuf
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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32
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Wang X, Wang S, Lv J, Shao S, Wang L, Jing X, Wang F. Through-space charge transfer hexaarylbenzene dendrimers with thermally activated delayed fluorescence and aggregation-induced emission for efficient solution-processed OLEDs. Chem Sci 2019; 10:2915-2923. [PMID: 30996869 PMCID: PMC6431955 DOI: 10.1039/c8sc04991b] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 01/11/2019] [Indexed: 11/23/2022] Open
Abstract
Through-space electron interaction plays a critical role in determining the optical and charge transport properties of functional materials featuring π-stacked architectures. However, developing efficient organic luminescent materials with such interactions has been a challenge because of the lack of well-established prototypical molecules. Here we report the design of through-space charge transfer hexaarylbenzenes (TSCT-HABs) containing circularly-arrayed electron donors (acridan/dendritic triacridan) and acceptors (triazine), which exhibit both thermally activated delayed fluorescence (TADF) and aggregation-induced emission (AIE) effects for high-efficiency solution-processed organic light-emitting diodes (OLEDs). Spatial separation of donors and acceptors in the TSCT-HABs induces a small singlet-triplet energy splitting of 0.04-0.08 eV, leading to delayed fluorescence with microsecond-scale lifetimes. Meanwhile, the TSCT-HABs display the AIE effect with emission intensity enhanced by 6-17 fold from solution to the aggregation state owing to their propeller-shaped configuration. Solution-processed OLEDs based on the TSCT-HABs show maximum external quantum efficiency up to 14.2%, making them among the most efficient emitters for solution-processed TADF OLEDs.
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Affiliation(s)
- Xingdong Wang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Shumeng Wang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Jianhong Lv
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Shiyang Shao
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Xiabin Jing
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
| | - Fosong Wang
- State Key Laboratory of Polymer Physics and Chemistry , Changchun Institute of Applied Chemistry , Chinese Academy of Sciences , Changchun 130022 , P. R. China . ;
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33
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Li B, He T, Shen X, Tang D, Yin S. Fluorescent supramolecular polymers with aggregation induced emission properties. Polym Chem 2019. [DOI: 10.1039/c8py01396a] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the recent developments in AIE fluorescent supramolecular polymeric materials based on different types of intermolecular noncovalent interactions, and their wide ranging applications as chemical sensors, organic electronic materials, bio-imaging agents and so on.
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Affiliation(s)
- Bo Li
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- P. R. China
| | - Tian He
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- P. R. China
| | - Xi Shen
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- P. R. China
| | - Danting Tang
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- P. R. China
| | - Shouchun Yin
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310036
- P. R. China
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34
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Li Y, Lei Y, Dong L, Zhang L, Zhi J, Shi J, Tong B, Dong Y. 1,2,5‐Triphenylpyrrole Derivatives with Dual Intense Photoluminescence in Both Solution and the Solid State: Solvatochromism and Polymorphic Luminescence Properties. Chemistry 2018; 25:573-581. [DOI: 10.1002/chem.201804074] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Yuanyuan Li
- School of Chemistry and Chemical EngineeringBeijing Key Laboratory of Photoelectronic/Electrophotonic Conversion, MaterialsBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Yunxiang Lei
- Materials Science and EngineeringBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Lichao Dong
- Materials Science and EngineeringBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Longlong Zhang
- School of Chemistry and Chemical EngineeringBeijing Key Laboratory of Photoelectronic/Electrophotonic Conversion, MaterialsBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Junge Zhi
- School of Chemistry and Chemical EngineeringBeijing Key Laboratory of Photoelectronic/Electrophotonic Conversion, MaterialsBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Jianbing Shi
- Materials Science and EngineeringBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Bin Tong
- Materials Science and EngineeringBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
| | - Yuping Dong
- Materials Science and EngineeringBeijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 China
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35
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Das P, Kumar A, Chowdhury A, Mukherjee PS. Aggregation-Induced Emission and White Luminescence from a Combination of π-Conjugated Donor-Acceptor Organic Luminogens. ACS OMEGA 2018; 3:13757-13771. [PMID: 31458076 PMCID: PMC6645036 DOI: 10.1021/acsomega.8b01706] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 10/05/2018] [Indexed: 05/19/2023]
Abstract
Two new star-shaped phenyl- and triazine-core based donor-acceptor (D-A) type conjugated molecules bearing triphenylamine end-capped arms were synthesized and characterized as imminent organic optoelectronic materials. Photophysical properties of the compounds were explored systematically via spectroscopic and theoretical methods. Because of the presence of donor-acceptor interactions, these luminogens display multifunctional properties, for instance, high extinction coefficient, large stokes shift, and pronounced solvatochromic effect. The compounds also exhibited phenomenon known as aggregation-induced emission on formation of nano-aggregates in the tetrahydrofuran-water mixture. The aggregate formation was confirmed by transmission electron microscopy, scanning electron microscopy, and dynamic light scattering analyses. Moreover, by controlling the electron withdrawing ability of the acceptor, complementary emissive fluorophores (blue and yellow) were achieved. These two complementary colors together span the entire range of visible spectrum (400-800 nm) and therefore when mixed in a requisite proportion generate white light in solution phase. These findings have potential for the progress of new organic white light radiating materials for applications in lighting and display devices.
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Affiliation(s)
- Paramita Das
- Department of Inorganic
and Physical Chemistry, Indian Institute
of Science, Bangalore 560012, India
- Department
of Chemistry, Asutosh College, 92, S. P. Mukherjee Road, Kolkata 700026, India
| | - Atul Kumar
- Department of Inorganic
and Physical Chemistry, Indian Institute
of Science, Bangalore 560012, India
| | - Aniket Chowdhury
- Department of Inorganic
and Physical Chemistry, Indian Institute
of Science, Bangalore 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic
and Physical Chemistry, Indian Institute
of Science, Bangalore 560012, India
- E-mail:
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36
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Felip-León C, Galindo F, Miravet JF. Insights into the aggregation-induced emission of 1,8-naphthalimide-based supramolecular hydrogels. NANOSCALE 2018; 10:17060-17069. [PMID: 30178813 DOI: 10.1039/c8nr03755h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The study of aggregation-induced emission (AIE) of a series of 1,8-naphthalimide derivatives in aqueous media is reported herein. Some of these molecules constitute the first examples of 1,8-naphthalimide-containing amino acid derivatives that form hydrogels with excellent photophysical and mechanical properties. The present study provides further insights for the rational design of water-compatible stimuli-responsive photonic materials presenting AIE. AIE was quantitatively evaluated by measuring the fluorescence quantum yields of the molecules. Gelators 1 and 2 exhibit self-assembled fibrillar morphologies and present the best performance regarding the AIE effect, showing a remarkable enhancement in fluorescence intensity of 4700% and reaching a notable fluorescence quantum yield (Φf) of 30%. Non-gelator molecules 6 and 7 form nanoparticles, which also present AIE, but with emissions corresponding to their excimers. Therefore, the AIE intensity and wavelength are regulated by the type of aggregate morphology: fibers, nanoparticles or soluble species.
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Affiliation(s)
- Carles Felip-León
- Universitat Jaume I, Departamento de Química Inorgánica y Orgánica, Avda. Sos Baynat s/n, 12071, Castellón, Spain.
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37
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Liu X, Li M, Liu M, Yang Q, Chen Y. From Tetraphenylfurans to Ring-Opened (Z)-1,4-Enediones: ACQ Fluorophores versus AIEgens with Distinct Responses to Mechanical Force and Light. Chemistry 2018; 24:13197-13204. [PMID: 29956386 DOI: 10.1002/chem.201801507] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/02/2018] [Indexed: 01/08/2023]
Abstract
Two aryl-substituted tetraphenylfurans (TPF-1 and TPF-2) and the corresponding ring-opened (Z)-1,4-enedione derivatives (TPBD-1 and TPBD-2) have been successfully synthesized. Although all the molecules adopt propeller-like configurations, experimental results revealed that the tetraphenylfurans (TPFs) were aggregation-caused quenching (ACQ) fluorophores whereas the 1,4-enediones (TPBDs) were aggregation-induced emission (AIE) active. Additionally, the TPFs and TPBDs exhibited contrasting "turn-on" mechanochromic behavior, with an unusual blueshift of mechanochromic fluorescence for the TPFs and a remarkable redshifted mechanochromism for the TPBDs. Both of these solid-state optical properties were proven to be highly dependent on the mode of molecular packing and substituent effects. In particular, in addition to the tunability of the fluorescent properties through aggregation and mechanical force, ground TPF-1 was found to be efficiently sensitive to light. On the basis of these findings we constructed a smart film with ground TPF-1 and demonstrated its utility in data encryption and decryption well controlled by UV light. Therefore, this work not only provides an insight into the mechanism of AIE as well as mechanochromic effects, but also paves the way towards the development of multifunctional stimuli-responsive materials and devices.
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Affiliation(s)
- Xia Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300354, P.R. China
| | - Mengwei Li
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300354, P.R. China
| | - Meifang Liu
- Department of Chemistry, Weifang University, Weifang, 261061, P.R. China
| | - Qiuhua Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300354, P.R. China
| | - Yulan Chen
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Tianjin University, Tianjin, 300354, P.R. China
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38
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Lei Y, Liu Q, Dong L, Cai Z, Shi J, Zhi J, Tong B, Dong Y. The Dual-State Luminescent Mechanism of 2,3,4,5-Tetraphenyl-1H-pyrrole. Chemistry 2018; 24:14269-14274. [PMID: 30014523 DOI: 10.1002/chem.201803080] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Indexed: 12/12/2022]
Abstract
2,3,4,5-Tetraphenyl-1H-pyrrole (TePP) was synthesized by a simple one-step reaction. The compound showed a balanced emission in both the solution and solid state with the absolute quantum yield of ΦF/THF =65.6 % and ΦF/solid =74.3 %, respectively. Temperature and viscosity variation measurements demonstrated that the phenyl group at the 1-position (N-position) of the pyrrole core can act as a rotor in pyrrole-based molecules, which can consume the excited energy and reduce the molecular emission in solution. TePP without the phenyl group at the 1-position can effectively enhance the emission in solution. Single-crystal analysis showed that the phenyl groups at the 2,5-positions of pyrrole extend the molecular conjugation and lock the conformation. The phenyl groups at the 3,4-positions with a twisted conformation prevent their molecules from close packing and are helpful for aggregated emission. A delicate balance between the twisting conformation and rigid conjugation takes advantage of both ACQ and AIE luminogens. The strategy can tune the AIE, ACQ, or solution and solid dual-state emission properties of pyrrole-based molecules by simply altering the position of phenyl groups, which provides a great opportunity to explore the luminescent mechanism in greater detail and to facilitate practical applications.
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Affiliation(s)
- Yunxiang Lei
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Qianwei Liu
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Lichao Dong
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Zhengxu Cai
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Jianbing Shi
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Junge Zhi
- School of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Bin Tong
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
| | - Yuping Dong
- School of Materials Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, P. R. China
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39
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Zhang Y, Mao H, Xu W, Shi J, Cai Z, Tong B, Dong Y. Aggregation-Induced Emission of Multiphenyl-Substituted 1,3-Butadiene Derivatives: Synthesis, Properties and Application. Chemistry 2018; 24:15965-15977. [DOI: 10.1002/chem.201802114] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Yahui Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Huiling Mao
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Weiquan Xu
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Zhengxu Cai
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Bin Tong
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced, Functional Materials and Green Applications; School of Materials Science, and Engineering; Beijing Institute of Technology; Beijing 100081 China
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40
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Liu P, Li W, Guo S, Xu D, Wang M, Shi J, Cai Z, Tong B, Dong Y. Application of a Novel "Turn-on" Fluorescent Material to the Detection of Aluminum Ion in Blood Serum. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23667-23673. [PMID: 29932319 DOI: 10.1021/acsami.8b07658] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A novel "turn-on" fluorescent bioprobe, 1,2,3,4,5-penta(4-carboxyphenyl)pyrrole sodium salt (PPPNa), with aggregation-enhanced emission characteristics was synthesized for the in situ quantitative detection of Al3+ in serum. It exhibited a high selectivity to Al3+ in both simulated serum and fetal calf serum with no interferences from other metal ions or serum components observed and no isolation required. A weak interaction between PPPNa and serum albumin was found, which caused no interference, but enhanced fluorescence response of PPPNa to Al3+ and improved detection sensitivity. The limit of detection was determined to be 1.50 μmol/L Al3+ in phosphate-buffered saline solution containing 33 μg/mL bovine serum albumin (BSA) and decreased to 0.98 μmol/L as BSA concentration increased to 100 μg/mL. The fluorescence "turn-on" mechanism of the PPPNa probe to detect Al3+ was proposed. A bidentate complex is formed between the carboxy group of PPPNa and Al3+, causing the photoluminescence (PL) emission enhancement by aggregation. BSA chains further strengthen the stacking compactness of the aggregates of PPPNa and Al3+ and consequently enhance the PL emission of PPPNa by further promoting the restriction of intramolecular rotation of the phenyl ring. Its application to the in situ Al3+ was successfully demonstrated with HeLa cells and NIH 3T3 cells. The low cytotoxicity and highly selective response of PPPNa to Al3+ endow its great potentials to in vivo detecting and imaging of Al3+ as well as an absorbent of Al3+.
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Affiliation(s)
- Pai Liu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Wangyang Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Shuai Guo
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Dongrui Xu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Mengni Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Zhengxu Cai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Bin Tong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering , Beijing Institute of Technology , Beijing 100081 , China
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41
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Imoto H, Urushizaki A, Kawashima I, Naka K. Peraryl Arsoles: Practical Synthesis, Electronic Structures, and Solid-State Emission Behaviors. Chemistry 2018; 24:8797-8803. [PMID: 29719074 DOI: 10.1002/chem.201801589] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Indexed: 12/31/2022]
Abstract
2,3,4,5-Tetraaryl-1-phenylarsoles were synthesized by utilizing safely generated diiodophenylarsine and zirconacyclopentadienes. The obtained peraryl arsoles showed aggregation-induced emission (AIE), where intense emission was observed in the solid states (quantum yields up to 0.61), whereas the corresponding solutions were very weakly emissive. The optical and electronic properties were examined by experimental and computational methods. It was elucidated that the aryl groups at the 2,5-positions affected the frontier orbitals and the aromaticity of the arsole core. On the other hand, those at the 1,3,5-positions were perpendicular to the luminophore and effective for a restriction of aggregation-caused quenching. Because the lone pair of the arsenic atom has a sufficient coordination ability due to the low aromaticity of the arsole moiety, a gold(I) chloride complex of 1,2,3,4,5-pentaphenylarsole was synthesized. The complex formation caused a blue shift of the emission from the bare ligand. Interestingly, the complex showed luminescent mechanochromism; grinding the crystals with a blue emission (λem =445 nm) gave amorphous samples with a greenish-blue emission (λem =496 nm).
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Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Aya Urushizaki
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Ikuo Kawashima
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
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42
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Ji H, Wu C, Ni M, Feng N, Wang C, Zhao Y, Liu L, Yang S, Bao X. In vitro Antichlamydial Activity of 1,2,3,5-Tetrasubstituted Pyrrole Derivatives. Chemotherapy 2018; 63:96-100. [PMID: 29649816 DOI: 10.1159/000487880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 02/22/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chlamydia is a group of bacterial pathogens distributed worldwide that can lead to serious reproductive and other health problems. The rise of antibiotic-resistant pathogens promotes the development of novel antichlamydial agents. The aim of this study is to assess in vitro antichlamydial activity of our previously synthesized 1,2,3,5- tetrasubstituted pyrroles. METHODS The derivatives were screened for their antichlamydial activity against three Chlamydia strains by calculating IC50 values using concentration-response inhibition data between 1 and 32 μM. The action of the compounds on Chlamydia elementary body (EB) infectivity and the impact of the chemicals' administration time on their antichlamydial effect were evaluated to reveal the inhibitory mechanism. RESULTS Some of the compounds moderately inhibited the Chlamydia strains. Compound 10 exhibited the strongest inhibitory activity, with IC50 values from 4.34 to 5.83 μM. These pyrrole derivatives inhibited Chlamydia infection by reducing EB infectivity during the early stage and disturbing Chlamydia growth by targeting the early-to-middle stage prior to 12 h of the chlamydial life cycle. CONCLUSION Our findings highlight the potential of 1,2,3,5-tetrasubstituted pyrrole derivatives as promising lead molecules for the development of antichlamydial agents.
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Affiliation(s)
- Hongzhang Ji
- School of Pharmacy, Nantong University, Nantong, China
| | - Changyue Wu
- School of Medicine, Nantong University, Nantong, China
| | - Min Ni
- School of Pharmacy, Nantong University, Nantong, China
| | - Nannan Feng
- School of Pharmacy, Nantong University, Nantong, China
| | - Chan Wang
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Yu Zhao
- School of Pharmacy, Nantong University, Nantong, China
| | - Lingyan Liu
- The State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Shengju Yang
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaofeng Bao
- School of Pharmacy, Nantong University, Nantong, China
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Synthesis, structure, photoluminescence and photochromism of phosphindole oxide and benzo[b]thiophene S,S-dioxide derivatives. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.08.061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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44
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Liu Y, Yi X, Luo X, Xi C. MeOTf-Mediated Annulation of Alkylnitriles and Arylalkynes Leading to Polysubstituted NH-Pyrroles. J Org Chem 2017; 82:11391-11398. [DOI: 10.1021/acs.joc.7b01845] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu Liu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiangli Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xuewei Luo
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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Pawar SK, Yang MC, Su MD, Liu RS. Gold-Catalyzed Oxidative [2+2+1] Annulations of Aryldiazo Nitriles with Imines To Yield Polyarylated Imidazolium Salts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701157] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Ming-Chung Yang
- Department of Chemistry; National Chia-Yi, University; Chiayi Taiwan, ROC
| | - Ming-Der Su
- Department of Chemistry; National Chia-Yi, University; Chiayi Taiwan, ROC
| | - Rai-Shung Liu
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan, ROC
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46
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Pawar SK, Yang MC, Su MD, Liu RS. Gold-Catalyzed Oxidative [2+2+1] Annulations of Aryldiazo Nitriles with Imines To Yield Polyarylated Imidazolium Salts. Angew Chem Int Ed Engl 2017; 56:5035-5039. [PMID: 28371080 DOI: 10.1002/anie.201701157] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 11/10/2022]
Abstract
Gold-catalyzed oxidative [2+2+1] annulations between two imines and one α-cyano arylgold carbene afforded polyarylated imidazolium salts and molecular hydrogen efficiently. Control experiments suggest that the gold catalyst alone facilitates the main annulation, whereas Ag+ avoids the formation of inactive LAuCN. DFT calculations suggest that the success of this annulation relies on a 6 π-electrocyclization of cyano-free intermediates with cis-configured imines as initial reagents.
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Affiliation(s)
- Samir Kundlik Pawar
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Ming-Chung Yang
- Department of Chemistry, National Chia-Yi, University, Chiayi, Taiwan, ROC
| | - Ming-Der Su
- Department of Chemistry, National Chia-Yi, University, Chiayi, Taiwan, ROC
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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47
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Tang X, Zhang J, Liu L, Yang D, Wang H, He F. Synthesis of 13-substituted derivatives of berberine: Aggregation-induced emission enhancement and pH sensitive property. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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48
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Zhang L, Liang K, Dong L, Yang P, Li Y, Feng X, Zhi J, Shi J, Tong B, Dong Y. Aggregation-induced emission enhancement and aggregation-induced circular dichroism of chiral pentaphenylpyrrole derivatives and their helical self-assembly. NEW J CHEM 2017. [DOI: 10.1039/c7nj00583k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
AIEE-active chiral pentaphenylpyrrole derivatives possess AICD and circularly polarized luminescence features with self-assembling to regular nanofibers.
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Shoji T, Takagaki S, Tanaka M, Araki T, Sugiyama S, Sekiguchi R, Ohta A, Ito S, Okujima T. Synthesis of Azulene-Substituted Tetraarylpyrroles by Reaction of 1-Azulenyl Ketones with Benzoin and Ammonium Acetate. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Behera SK, Murkherjee A, Sadhuragiri G, Elumalai P, Sathiyendiran M, Kumar M, Mandal BB, Krishnamoorthy G. Aggregation induced enhanced and exclusively highly Stokes shifted emission from an excited state intramolecular proton transfer exhibiting molecule. Faraday Discuss 2017; 196:71-90. [DOI: 10.1039/c6fd00171h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The inner filter effect due to self-quenching dominates the normal emission of dyes at higher concentrations, which would limit their applications. Since normal emission was also observed with aggregation induced emission enhancement (AIEE) active excited state intramolecular proton transfer (ESIPT) exhibiting molecules, two new molecules are synthesized and studied to obtain normal emission free AIEE. The molecules are 4-(3-(benzo[d]thiazol-2-yl)-5-tert-butyl-4-hydroxybenzyl)-2-(benzo[d]thiazol-2-yl)-6-tert-butyl phenol (bis-HPBT) and its oxazole analogue (bis-HPBO). Of these molecules, bis-HPBT, which is weakly fluorescent in tetrahydrofuran solution, shows a sudden high enhancement in fluorescence upon addition of 70% water due to the formation of aggregates. Though the normal emission is also observed in tetrahydrofuran, it is completely eliminated in the aggregates, and the aggregates display exclusive tautomer emission. However, bis-HPBO does not emit such an exclusive tautomer emission in the water/tetrahydrofuran mixture. The enhancement in the fluorescence quantum yield of bis-HPBT in 70% water is ∼300 times higher than that in tetrahydrofuran. The modulated molecular structure of bis-HPBT is the cause of this outstanding AIEE. The observation of almost exclusive tautomer emission is a new additional advantage of AIEE from bis-HPBT over other ESIPT molecules. Since the tautomer emission is highly Stokes shifted, no overlap with the absorption spectrum occurs and therefore, the inner filter effect is averted. The aggregated structure acts as a good fluorescence chemosensor for metal ions as well as anions. The aggregated structure is cell permeable and can be used for cell imaging.
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Affiliation(s)
- Santosh Kumar Behera
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Anwesha Murkherjee
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - G. Sadhuragiri
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
| | | | | | - Manishekhar Kumar
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Biman B. Mandal
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - G. Krishnamoorthy
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
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