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Kaur A, Chaudhary RP. Review on Synthesis of 2-(2-Hydroxyaryl) Benzothiazoles (HBT) for Excited-State Intra-molecular Proton Transfer (ESIPT)-Based Detection of Ions and Biomolecules. Top Curr Chem (Cham) 2024; 382:26. [PMID: 39023635 DOI: 10.1007/s41061-024-00472-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 07/01/2024] [Indexed: 07/20/2024]
Abstract
In this review, we present a systematic and comprehensive summary of the recent developments in the synthetic strategies of 2-(2-hydroxyarylsubstituted)-benzothiazole (HBT) framework along with incorporation of various substituents on phenolic and benzothiazole rings which affect the emission process. The literature, spanning the years 2015-2024, on excited-state intramolecular proton transfer (ESIPT)-based studies of HBT derivatives comprising the effects of solvent polarity, substituents, and extended conjugation on fluorophores has been searched. ESIPT, intramolecular charge transfer, and aggregation-induced emissions enable these fluorescent probes to specifically interact with analytes, thereby altering their luminescence characteristics to achieve analyte detection. These fluorescent probes exhibit large Stokes shifts, high quantum yields, and excellent color transitions. Finally, the applications of HBTs as ESIPT-based fluorescent probes for the detection of cations, anions, and biomolecules have been summarized. We anticipate that this review will provide a comprehensive overview of the current state of research in this field and encourage researchers to develop novel ESIPT-based fluorophores with new applications.
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Affiliation(s)
- Amandeep Kaur
- Department of Chemistry, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, 148106, India
| | - R P Chaudhary
- Department of Chemistry, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, 148106, India.
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2
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Paul S, Daga P, Dey N. Exploring Various Photochemical Processes in Optical Sensing of Pesticides by Luminescent Nanomaterials: A Concise Discussion on Challenges and Recent Advancements. ACS OMEGA 2023; 8:44395-44423. [PMID: 38046331 PMCID: PMC10688216 DOI: 10.1021/acsomega.3c02753] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 12/05/2023]
Abstract
Food safety is a burning global issue in this present era. The prevalence of harmful food additives and contaminants in everyday food is a significant cause for concern as they can adversely affect human health. More particularly, among the different food contaminants, the use of excessive pesticides in agricultural products is severely hazardous. So, the optical detection of residual pesticides is an effective strategy to counter the hazardous effect and ensure food safety. In this perspective, nanomaterials have played a leading role in defending the open threat against food safety instigated by the reckless use of pesticides. Now, nanomaterial-based optical detection of pesticides has reached full pace and needs an inclusive discussion. This Review covers the advancement of photoprocess-based optical detection of pesticides categorically using nanomaterials. Here, we have thoroughly dissected the photoprocesses (aggregation and aggregation-induced emission (AIE), charge transfer and intramolecular charge transfer (ICT), electron transfer and photoinduced electron transfer (PET), fluorescence resonance energy transfer (FRET), hydrogen bonding, and inner filter effect) and categorically demarcated their significant role in the optical detection of pesticides by luminescent nanomaterials over the last few years.
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Affiliation(s)
- Suvendu Paul
- Department
of Chemistry, BITS-Pilani Hyderabad Campus, Shameerpet, Hyderabad, Telangana 500078, India
| | - Pooja Daga
- Department
of Chemistry, Siksha-Bhavana, Visva-Bharati
University, Santiniketan, West Bengal 731235, India
| | - Nilanjan Dey
- Department
of Chemistry, BITS-Pilani Hyderabad Campus, Shameerpet, Hyderabad, Telangana 500078, India
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3
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Cappello D, Buguis FL, Boyle PD, Gilroy JB. Dual Emission, Aggregation, and Redox Properties of Boron Difluoride Hydrazones Functionalized with Triphenylamines. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniela Cappello
- The University of Western Ontario Department of Chemistry CANADA
| | | | - Paul D. Boyle
- The University of Western Ontario Department of Chemistry CANADA
| | - Joe B. Gilroy
- The University of Western Ontario Department of Chemistry 1151 Richmond St. N. N6A 5B7 London CANADA
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Shamsiya A, Bahulayan D. D–A systems based on oxazolone–coumarin triazoles as solid-state emitters and inhibitors of human cervical cancer cells (HeLa). NEW J CHEM 2022. [DOI: 10.1039/d1nj04151g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
D–A systems with solid-state emission and anticancer properties have been synthesized in three steps via the MCR-Click protocol.
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Affiliation(s)
- Aranhikkal Shamsiya
- Department of Chemistry, University of Calicut, Malappuram 673635, Kerala, India
| | - Damodaran Bahulayan
- Department of Chemistry, University of Calicut, Malappuram 673635, Kerala, India
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6
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Kumari A, Dehaen W, Chopra D, Dey S. Imidazopyridine–fluoride interaction: solvent-switched AIE effects via S⋯O conformational locking. NEW J CHEM 2022. [DOI: 10.1039/d2nj00561a] [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
Imidazopyridine-based carboxamide exhibiting the aggregation-induced emission phenomenon works effectively in fluoride ion detection through H-bond interaction and subsequent deprotonation.
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Affiliation(s)
- Annu Kumari
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad 826004, India
| | - Wim Dehaen
- Molecular Design & Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Deepak Chopra
- Crystallography & Crystal Chemistry Laboratory, Department of Chemistry, IISER Bhopal, 462066, India
| | - Swapan Dey
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM), Dhanbad 826004, India
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8
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Fery-Forgues S, Vanucci-Bacqué C. Recent Trends in the Design, Synthesis, Spectroscopic Behavior, and Applications of Benzazole-Based Molecules with Solid-State Luminescence Enhancement Properties. Top Curr Chem (Cham) 2021; 379:32. [PMID: 34342718 DOI: 10.1007/s41061-021-00344-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 07/10/2021] [Indexed: 02/05/2023]
Abstract
Molecules that exhibit solid-state luminescence enhancement, i.e. the rare property to be more strongly emissive in the solid state than in solution, find an increasing number of applications in the fields of optoelectronic and nanophotonic devices, sensors, security papers, imaging, and theranostics. Benzazole (BZ) heterocycles are of particular value in this context. The simple enlargement of their π-electron system using a -C=C-Ar or -N=C-Ar moiety is enough for intrinsic solid-state luminescence enhancement (SLE) properties to appear. Their association with a variety of polyaromatic motifs leads to SLE-active molecules that frequently display attractive electroluminescent properties and are sensitive to mechanical stimuli. The excited-state intramolecular proton transfer (ESIPT) process that takes place in some hydroxy derivatives reinforces the SLE effect and enables the development of new sensors based on a protection/deprotection strategy. BZ may also be incorporated into frameworks that are prototypical aggregation-induced enhancement (AIE) luminogens, such as the popular tetraphenylethene (TPE), leading to materials with excellent optical and electroluminescent performance. This review encompasses the various ways to use BZ units in SLE systems. It underlines the significant progresses recently made in the understanding of the photophysical mechanisms involved. A brief overview of the synthesis shows that BZ units are robust building blocks, easily incorporated into a variety of structures. Generally speaking, we try to show how these small heterocycles may offer advantages for the design of increasingly efficient luminescent materials.
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Affiliation(s)
- Suzanne Fery-Forgues
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062, Toulouse cedex 9, France.
| | - Corinne Vanucci-Bacqué
- SPCMIB, CNRS UMR 5068, Université de Toulouse III Paul Sabatier, 118 route de Narbonne, 31062, Toulouse cedex 9, France
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Johnee Britto N, Panneerselvam M, Deepan Kumar M, Kathiravan A, Jaccob M. Substituent Effect on the Photophysics and ESIPT Mechanism of N, N'-Bis(salicylidene)- p-phenylenediamine: A DFT/TD-DFT Analysis. J Chem Inf Model 2021; 61:1825-1839. [PMID: 33843222 DOI: 10.1021/acs.jcim.0c01430] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Excited-state intramolecular proton transfer (ESIPT) and intramolecular charge transfer (ICT) processes are widely exploited in the designing of organic materials for multifarious applications. This work explores the aftereffects of combining both ESIPT and ICT events in a single molecule, namely, N,N'-bis(salicylidene)-p-phenylenediamine (BSP) exploiting DFT and TD-DFT formalisms. The PBE0 functional employed in the present study is found to yield results with better accuracy for excited-state calculations. The results reveal that introduction of electron donor (-NH2) and electron acceptor (-NO2) substituents on BSP produces a strikingly red-shifted emission with respect to the corresponding emission from the unsubstituted analogue in polar solvents. This red-shifted emission originated due to the coupled effect of ESIPT and planar-ICT (PICT) processes from the coplanar geometry adopted by the substituted molecule (s-BSP). Based on the computed potential energy curves, the ground-state intramolecular proton transfer (GSIPT) was found to take place more favorably in s-BSP than in BSP under all solvent conditions. In the case of ESIPT, the barrier and relative energies of the phototautomers of s-BSP were slightly higher than BSP, which shows that simultaneous substitution of -NH2 and -NO2 groups causes slight perturbation to the ESIPT process. Overall, the computed results show that simultaneous substitution of suitable electron donor and acceptor substituents provides profitable changes in the photophysical properties of ESIPT molecules like BSP. These molecular-level insights will pave way for designing better materials for diverse applications.
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Affiliation(s)
- Neethinathan Johnee Britto
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Murugesan Panneerselvam
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Madhu Deepan Kumar
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Arunkumar Kathiravan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India
| | - Madhavan Jaccob
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
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Gayathri P, Pannipara M, Al-Sehemi AG, Anthony SP. Recent advances in excited state intramolecular proton transfer mechanism-based solid state fluorescent materials and stimuli-responsive fluorescence switching. CrystEngComm 2021. [DOI: 10.1039/d1ce00317h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Substitutional change and controlling intra and intermolecular interactions of ESIPT molecules resulted in realizing multifunctional fluorescence properties.
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Affiliation(s)
- Parthasarathy Gayathri
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - Mehboobali Pannipara
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for Advanced Materials Science
| | - Abdullah G. Al-Sehemi
- Department of Chemistry
- King Khalid University
- Abha 61413
- Saudi Arabia
- Research center for Advanced Materials Science
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12
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Singh VD, Dwivedi BK, Kumar Y, Pandey DS. Artificial light-harvesting systems (LHSs) based on boron-difluoride (BF 2) hydrazone complexes (BODIHYs). NEW J CHEM 2021. [DOI: 10.1039/d0nj04547k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrazone based BF2–complexes (BODIHYs; B1–B2) have been synthesized and their photophysical and aggregation behavior have been established. These BODIHYs have been showed light harvesting properties in presence of RhB as acceptor.
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Affiliation(s)
- Vishwa Deepak Singh
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
| | | | - Yogesh Kumar
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
| | - Daya Shankar Pandey
- Department of Chemistry
- Institute of Science
- Banaras Hindu University
- Varanasi-221 005
- India
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13
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Ai W, Yang Z, Ma Y, Han X, Chen Y, Zhu K, Wang Z. Combined tetraphenylethylene fluorogens with positive charge for imaging capsule-covered pathogens. Analyst 2020; 145:6435-6440. [PMID: 32760975 DOI: 10.1039/d0an00349b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Capsule-covered pathogens can cause serious infectious diseases, and are highly pathogenic to humans. Herein, we developed four positively charged tetraphenylethylene derivatives (PC-TPEgens) that in certain combinations were applied to identify capsule-bearing pathogens using fluorescence imaging. The dual-charged probes were used to visualize the entire process of phagocytosis of pathogens into macrophages.
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Affiliation(s)
- Wenting Ai
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing 100029, China.
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14
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Zhang S, Yin W, Yang Z, Shah I, Yang Y, Li Z, Zhang S, Zhang B, Lei Z, Ma H. Facile Polymerization Strategy for the Construction of Eu3+-Based Fluorescent Materials with the Capability of Distinguishing D2O from H2O. Anal Chem 2020; 92:7808-7815. [DOI: 10.1021/acs.analchem.0c00981] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shaoxiong Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Weidong Yin
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Zengming Yang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Imran Shah
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Yuan Yang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Zhao Li
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Shengjun Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Bo Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Ziqiang Lei
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
| | - Hengchang Ma
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
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15
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Wang H, Xu Y, Xu B, Chen H, Cai F, Zhou L, Wei Y, He J, Shen X, Hu L. Small-molecule fluorescent dyes based on benzothiazole derivatives for targeting endoplasmic reticulum and tissue imaging. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Bhattacharyya A, Guchhait N. Exciplex formation between a pair of synthesized AIEgens leads to white light generation: a spectroscopic exploration. NEW J CHEM 2020. [DOI: 10.1039/d0nj02489a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Compounds BIMP and ECPA show aggregation promoted ESIPT and AIE emissions, respectively. The BIMP–ECPA ensemble behaves as a white light emitter through exciplex formation.
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Affiliation(s)
| | - Nikhil Guchhait
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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17
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Zhang W, Suzuki S, Cho S, Watanabe G, Yoshida H, Sakurai T, Aotani M, Tsutsui Y, Ozaki M, Seki S. Highly Miscible Hybrid Liquid-Crystal Systems Containing Fluorescent Excited-State Intramolecular Proton Transfer Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14031-14041. [PMID: 31566386 DOI: 10.1021/acs.langmuir.9b02272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Doping of luminescent molecules in a nematic liquid-crystal (LC) host is a convenient approach to develop light-emitting LC displays that would be a promising alternative to conventional LC displays. The requirements for the luminescent guest molecules include high miscibility in the host LC, high-order parameters in the host LC media to show anisotropic luminescence, lack of self-absorption, transparency in the visible region, and a large photoluminescence quantum yield independent of its concentration. To address these issues, here, we newly synthesize a highly miscible and fluorescent excited-state intramolecular proton transfer molecule, C4-C≡C-HBT, based on 2-(2-hydroxyphenyl)benzothiazole (HBT). This compound is highly miscible in a conventional room-temperature nematic LC 4-pentyl-4'-cyano biphenyl (5CB) up to 14 wt % (∼12 mol %) and exhibits a large photoluminescence quantum yield of ΦFL = 0.32 in the 5CB host, both of which were achieved by the introduction of an alkynyl group into the HBT core. C4-C≡C-HBT possesses a high-order parameter of S = 0.46 in 5CB, and the C4-C≡C-HBT/5CB mixtures show anisotropic fluorescence whose intensity is controlled by the applied electric field. A patterned image is demonstrated, which is not visible under an ambient environment but is readable upon UV illumination, relying on the orientational differences of ordered C4-C≡C-HBT molecules.
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Affiliation(s)
- Wanying Zhang
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Satoshi Suzuki
- Fukui Institute for Fundamental Chemistry , Kyoto University , Kyoto 606-8103 , Japan
| | - SeongYong Cho
- Division of Electrical, Electronic and Information Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
| | - Go Watanabe
- Department of Physics, School of Science , Kitasato University , Kitasato 1-15-1 , Minami-ku, Sagamihara , Kanagawa 252-0373 , Japan
| | - Hiroyuki Yoshida
- Division of Electrical, Electronic and Information Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
| | - Tsuneaki Sakurai
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Mika Aotani
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Yusuke Tsutsui
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Masanori Ozaki
- Division of Electrical, Electronic and Information Engineering , Osaka University , 2-1 Yamadaoka , Suita, Osaka 565-0871 , Japan
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan
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Bhattacharyya A, Makhal SC, Guchhait N. Photophysical Properties of an Azine-Linked Pyrene-Cinnamaldehyde Hybrid: Evidence of Solvent-Dependent Charge-Transfer-Coupled Excimer Emission. ACS OMEGA 2019; 4:2178-2187. [PMID: 31459464 PMCID: PMC6648816 DOI: 10.1021/acsomega.8b02717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/13/2018] [Indexed: 06/10/2023]
Abstract
We report the photophysical properties of a synthetic asymmetric azine-based compound (17Z,18E)-4'-((E)-3-phenylallylidene)-1'-(dimethylamino)-1-((pyren-8-yl)methylene)hydrazine (PYNC). The molecule PYNC shows an appreciable red shift in the emission maximum in a wide range of solvents. In water, PYNC shows the characteristic feature of excimer formation exclusively. However, in all other solvents, the excimer band is present alongside the charge transfer emission band. The assignment of charge transfer and excimer bands has been established by various steady-state emission spectral data. PYNC, owing to this novel excimer-coupled charge transfer phenomenon, can be a potential probe for studying various supramolecular assemblies of biological interest.
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Bhattacharyya A, Makhal SC, Kumar Mandal S, Guchhait N. Exploring the hidden potential of a methoxy substituted HBT derivative as an efficient example of coupling of AIE and ESIPT processes and as an energy harvesting platform. NEW J CHEM 2019. [DOI: 10.1039/c9nj03340h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A methoxy substituted HBT derivative 2-(benzo[d]thiazol-2-yl)-6-methoxyphenol (TMP) showed coupling of AIE and ESIPT, underwent FRET with Rhodamine B and detected Sulfide in pure water by ratiometry.
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Affiliation(s)
| | | | | | - Nikhil Guchhait
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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20
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Hou J, Du J, Hou Y, Shi P, Liu Y, Duan Y, Han T. Effect of substituent position on aggregation-induced emission, customized self-assembly, and amine detection of donor-acceptor isomers: Implication for meat spoilage monitoring. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:1-11. [PMID: 30007896 DOI: 10.1016/j.saa.2018.07.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/20/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
We synthesized a class of positional isomers by attaching electron donor and acceptor units in different sites of a conjugated core. These isomers exhibit both aggregation-induced emission (AIE) and intramolecular charge transfer (ICT) effects, which are proved by adequate spectroscopic analysis. Their structure-property relationships were systematically studied. We found that relocation of the D/A units would have remarkable impact on the intermolecular dipole-dipole interaction, further controlling the shape and color of the self-assembled architectures. With D/A units shifting to different sites, four types of the structures appear sequentially, including quadrate microsheets, microrods, nanofilaments and nanowires. Furthermore, the A unit (benzoic acid moiety) of the AIE isomers is easy to adsorb amines, leading to changes in both emission wavelength and intensity. Then a portable sensor is prepared on solid support based on the self-assembled architecture of HMBA-4, which has been proved to be the most sensitive to amines. It affords fast spectral responses as well as a low detection limit of 186 Pa (vapour pressure). The sensing mechanism was revealed by density functional theory (DFT) calculation, which indicates that the spectral responses stem from the weakened ICT effect. The sensor is able to detect amine vapours generated by meat, and thus succeeds in detecting the spoiled pork samples, offering high potential for meat spoilage monitoring in real-world applications.
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Affiliation(s)
- Jingdan Hou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jiaorui Du
- School of Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Yue Hou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Peijun Shi
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yang Liu
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China
| | - Yuai Duan
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Tianyu Han
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
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Rajeshirke M, Shah D, Sekar N. Nonlinear Optical Chromophores with Aggregation Induced Emission Enhancement Based on 2-N,N-Dibutylamino-4-Phenyl Thiazole with FMR Characteristics. J Fluoresc 2018; 29:61-73. [DOI: 10.1007/s10895-018-2311-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/14/2018] [Indexed: 01/20/2023]
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22
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Substituent Modulation from ESIPT to ICT Emission in Benzoimidazolphenyl-methanones Derivatives: Synthesis, Photophysical and DFT Study. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0602-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Padalkar VS, Kuwada K, Sakamaki D, Tohnai N, Akutagawa T, Sakai KI, Sakurai T, Seki S. AIE Active Carbazole-Benzothiazole Based ESIPT Motifs: Positional Isomers Directing the Optical and Electronic Properties. ChemistrySelect 2017. [DOI: 10.1002/slct.201602044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vikas S. Padalkar
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto- 615-8510 Japan
| | - Kenji Kuwada
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto- 615-8510 Japan
| | - Daisuke Sakamaki
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto- 615-8510 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Osaka University; Suita Campus, Suita Osaka 565-0871 Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced Materials; Tohuku University; Sendai 980-8577 Japan
| | - Ken-ichi Sakai
- Department of Bio-& Material Photonics; Chitose Institute of Science and Technology
| | - Tsuneaki Sakurai
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto- 615-8510 Japan
| | - Shu Seki
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto- 615-8510 Japan
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24
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Samanta S, Manna U, Das G. White-light emission from simple AIE–ESIPT-excimer tripled single molecular system. NEW J CHEM 2017. [DOI: 10.1039/c6nj03070j] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rationally designed simple organic molecule exhibits white-light emission in methanol/water and acetonitrile/water mixtures.
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Affiliation(s)
- Soham Samanta
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Utsab Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Gopal Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
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25
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Zhang Y, Feng YQ, Wang JH, Han G, Li MY, Xiao Y, Feng ZD. Moiety effect on the luminescent property of star-shaped triphenylamine (TPA) derivatives as mechanochromic materials. RSC Adv 2017. [DOI: 10.1039/c7ra03123h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Introducing small moieties, such as –COOH/–COOCH3, on TPA will form supramolecular interactions with different self-assemblies, demonstrating different effects on the MCF luminescent property.
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Affiliation(s)
- Ying Zhang
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
| | - Yao-Qin Feng
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
| | - Jun-Hao Wang
- Institute of Crystalline Materials
- Shanxi University
- Taiyuan 030006
- PR China
| | - Gaoyi Han
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
| | - Miao-Yu Li
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
| | - Yaoming Xiao
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
| | - Zhen-Dong Feng
- Institute of Molecular Science
- Innovation Center of Chemistry and Molecular Science
- Shanxi University
- Key Laboratory of Energy Conversation and Storage of Shanxi Province
- Taiyuan 030006
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26
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Malakar A, Kumar M, Reddy A, Biswal HT, Mandal BB, Krishnamoorthy G. Aggregation induced enhanced emission of 2-(2'-hydroxyphenyl)benzimidazole. Photochem Photobiol Sci 2016; 15:937-48. [PMID: 27334264 DOI: 10.1039/c6pp00122j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, the aggregation induced emission enhancement (AIEE) of 2-(2'-hydroxyphenyl)benzimidazole (HPBI) is reported. To investigate the AIEE process of HPBI, absorption/fluorescence spectroscopy, fluorescence imaging and field emission scanning electron microscopy were employed. A comparative study with 2-phenylbenzimidazole (PBI) divulges the significance of the hydroxyl group in the AIEE process. Further, molecular dynamics simulations have been carried out with explicit solvent molecules to follow the aggregation process of HPBI with time. The obtained molecular dynamics simulation results not only predicted the formation of aggregates but also provided detailed insight and information on the molecular interactions. The cellular studies showed aggregates yield higher fluorescence in the visible region inside HeLa cells in comparison to monomeric compounds which failed to exhibit any visible fluorescence inside the cell. The obtained aggregates were further found to be biocompatible and therefore can be used for bio-imaging applications.
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Affiliation(s)
- Ashim Malakar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Manishekhar Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anki Reddy
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Himadree T Biswal
- Department of Chemistry, 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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27
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Padalkar VS, Sakamaki D, Kuwada K, Horio A, Okamoto H, Tohnai N, Akutagawa T, Sakai KI, Seki S. π-π Interactions: Influence on Molecular Packing and Solid-State Emission of ESIPT and non-ESIPT Motifs. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600159] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Vikas S. Padalkar
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
| | - Daisuke Sakamaki
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
| | - Kenji Kuwada
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
| | - Akifumi Horio
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
| | - Haruka Okamoto
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science; Osaka University; Suita Campus, Suita Osaka 565-0871 Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced Materials; Tohuku University; Sendai 980-8577 Japan
| | - Ken-ichi Sakai
- Department of Bio- and Material Photonics; Chitose Institute of Science and Technology; Chitose 066-8655 Japan
| | - Shu Seki
- Department of Molecular Engineering; Kyoto University; Katsura Campus Kyoto 615-8510 Japan
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