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Tian J, Su Z, Jiang X, Zhang B, Yang Y, Li X, Gou G. Mechanofluorochromic behaviors and latent fingerprint detection of triphenylamine-based compounds with mono-/bis-BF 2 fluorophores. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124568. [PMID: 38824757 DOI: 10.1016/j.saa.2024.124568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/28/2024] [Accepted: 05/29/2024] [Indexed: 06/04/2024]
Abstract
To better understand the relationship between molecular structure of the mono-/bis-BF2-core compounds and mechanofluoroboron behaviors, two pyridine-based difluoroboron compounds with triphenylamine group (TPA-ts-BF2 and TPA-ts-2BF2) were designed and successfully synthesized, which TPA-ts-BF2 including a BF2 fluorophore and TPA-ts-2BF2 containing the bisBF2 fluorophores. Based on the photophysical properties measurements results, it was found that TPA-ts-2BF2 had more excellent intramolecular charge transfer characteristics than that of TPA-ts-BF2, and exhibited significant aggregation-induced emission activity, however, TPA-ts-BF2 displayed typical aggregation-caused quenching phenomenon. Meanwhile, the emission spectrum of the solid powders of TPA-ts-2BF2 was red-shifted 52 nm after grinding, that of TPA-ts-BF2 was red-shifted 46 nm, which was resulted from crystalline state switching to amorphous state. According to the theoretical calculations, we conjectured that TPA-ts-BF2 with uncoordinated amide linkage moiety had a tendency to forming a more twisted conformance and higher molecular polarity, which made that mechanofluorochromic behavior was worse than that of TPA-ts-2BF2. Additionally, TPA-ts-2BF2 was applied to latent fingerprint detection due to its prime aggregation-induced emission property.
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Affiliation(s)
- Jiazhuang Tian
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Zhiyou Su
- Chiral HPLC Laboratory of the Analysis Department, Kanglong Huacheng (Ningbo) Technology Development Co., Ltd, Ningbo 315336, PR China
| | - Xiaozhou Jiang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Bangcui Zhang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China
| | - Yanhua Yang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China.
| | - Xiangguang Li
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, Kunming 650214, PR China.
| | - Gaozhang Gou
- Key Laboratory of Natural Pharmaceutical & Chemical Biology of Yunnan Province, School of Chemistry and Resources Engineering, Honghe University, Mengzi 661100, PR China.
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Yang B, Yan S, Zhang Y, Feng F, Huang W. Stimuli-responsive luminescence from polar cyano/isocyano-derived luminophores via structural tailoring and self-assembly. Dalton Trans 2024; 53:5320-5341. [PMID: 38411983 DOI: 10.1039/d3dt04049f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Polar cyano fragments and their isomeric isocyano counterparts have attracted great attention as stimuli-responsive luminescent materials in a wide range of fields including organic light-emitting diode devices, chemical fluorescent sensors, photoelectric semiconductors, anti-counterfeit products, etc., mainly because of their typical electron-deficient activity, noncovalent recognition ability, and variable coordination capacity. The electron-deficient and polar nature of these blocks have significant effects on the properties of the cyano/isocyano-based luminophore materials, especially concerning their condensed state-dependent electronic structures. Among them, donor-acceptor (D-A) derived unimolecular and co-assembled luminophores have attracted more attention because their large delocalized structures and noncovalent interaction recognition sites can rebuild the electronic transfer character in the aggregative state, thus endowing them with outstanding stimuli-responsive luminescent behavior via intermolecular and intramolecular charge transfer in polytropic morphologies. In this perspective paper, we give a brief introduction on stimuli-responsive organic and coordinated luminophores and the documented typical design concepts and applications in recent years. It is expected that this perspective article will not only summarize the recent developments of polar cyano/isocyano-derived luminophores and their coordination compounds via structural tailoring and self-assembly but also throw light on the future of the design of more sophisticated stimuli-responsive architectures and their versatile properties.
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Affiliation(s)
- Bo Yang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, P. R. China.
| | - Suqiong Yan
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, P. R. China.
| | - Yuan Zhang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, P. R. China.
| | - Fanda Feng
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, P. R. China.
| | - Wei Huang
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu Province 210093, P. R. China.
- Shenzhen Research Institute of Nanjing University, Shenzhen 518005, P. R. China
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Wang X, Hu C, Liu D, Yan J, Li F, Su P, Zheng K, Zhang N. A novel central seven-membered BOPYOs: Synthesis, optical properities and optimization of BF 2 removal. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123401. [PMID: 37738761 DOI: 10.1016/j.saa.2023.123401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/18/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
Many efforts have been made to enrich the variety of BF2 complexes because of their excellent optical properties. However, the investigation on seven-membered ring N, O-chelated BF2 complexes is rare due to their instability with the removal of BF2 unit. Herein, a novel seven-membered ring N, O-chelated BF2 complexes (BOPYOs) with dual-state emission has been synthesized via a facile method. The results of optical properties showed that the fluorescence quantum yield of BOPYO-2 with donor group on 1 and 2-position of 1-indanone unit is much higher than that of BOPYO-1, 3-5 in toluene. The emission spectra of BOPYO-6 or 7 have redshift phenomenon compared with BOPYO-1-5 with weak fluorescence intensity due to their highly distorted structure or intramolecular charge transfer (ICT) effect. BOPYOs show relatively moderate solid emission from orange to deep red color with 596 nm to 686 nm. On the contrary, fluorescence quantum yield of BOPYO-2 in solid is the lowest. The optical properties in solution and solid states are further supported by the single-crystal structure and DFT calculation. Furthermore, the investigation on optimization of BF2 removal shows that the corresponding precursors of BOPYOs could be obtained in protic solvents without adding other catalysts.
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Affiliation(s)
- Xuan Wang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China
| | - Cong Hu
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China
| | - Debo Liu
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China
| | - Jiaying Yan
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, PR China.
| | - Fei Li
- School of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000, PR China
| | - Peng Su
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China
| | - Kaibo Zheng
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, PR China.
| | - Nuonuo Zhang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Hubei, Yichang 443002, PR China; Hubei Three Gorges Laboratory, Yichang, Hubei 443007, PR China.
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Fei G, Li S, Liu Y, Carney JB, Chen T, Li Y, Gao X, Chen J, Chen P, Yue Y, Bao K, Tang B, Chen G. Structure-activity strategies for mechanically responsive fluorescent materials: a molecular perspective. Chem Commun (Camb) 2023; 60:10-25. [PMID: 38018176 DOI: 10.1039/d3cc04992b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Mechanical response luminescence (MRL) describes the photophysical properties triggered by mechanical stimulation. Usually, MRL can be regulated by intermolecular interactions, molecular conformation or molecular packing, to achieve the desirable optical properties. Herein, at the molecular level, this review covers the factors that influence mechanically responsive fluorescent materials, involving the single- or multifactorial modulation of aliphatic chains, donor-receptor switch, substituent adjustment, and position isomerism. According to these factors, the structure-activity strategies can be summarized as: (i) the self-recovery of optical properties, from the final to initial state, can be regulated by introducing long alkyl chains to a fluorophore. (ii) The sensitivity of MRL materials can be controlled by modifying the donor-acceptor structure via the changed ICT (intramolecular charge transfer) and intramolecular interaction. (iii) The electronic and steric effects of substituents can affect ICT and intermolecular interactions, thereby resulting in high quantum yield and high-contrast MRL materials via changing the molecular stacking of crystalline states. (iv) Intermolecular interaction is modulated by the position isomerism of the substituents, which results in switched molecular packing for the extended response toward a wide range of stimuli. It is anticipated that the molecular mechanisms of these structure-activity relationships will serve as a significant reference for developing novel, high contrast, recyclable mechanical response luminous materials.
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Affiliation(s)
- Guiqiang Fei
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Shaoqi Li
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Yuxia Liu
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology, Xi'an, 710021, China.
| | - Jared B Carney
- Department of Chemistry, Delaware State University, Dover, Delaware 19901, USA.
| | - Tao Chen
- Northwest Institute of Plateau Biology, CAS, No. 23, Qinghai, 810008, China.
| | - Yulin Li
- Northwest Institute of Plateau Biology, CAS, No. 23, Qinghai, 810008, China.
| | - Xiaoyong Gao
- Jiangsu Simba Biological Medicine Co., Ltd. Gaogang Distrct Qidizhihui Park, Taizhou city, China
| | - Ji Chen
- Jiangsu Simba Biological Medicine Co., Ltd. Gaogang Distrct Qidizhihui Park, Taizhou city, China
| | - Pu Chen
- Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Yanfeng Yue
- Department of Chemistry, Delaware State University, Dover, Delaware 19901, USA.
| | - Kai Bao
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02129, USA.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan 250014, P. R. China.
| | - Guang Chen
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology, Xi'an, 710021, China.
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Sun D, Wu Y, Han X, Liu S. The host-guest inclusion driven by host-stabilized charge transfer for construction of sequentially red-shifted mechanochromic system. Nat Commun 2023; 14:4190. [PMID: 37443180 DOI: 10.1038/s41467-023-39956-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023] Open
Abstract
Developing more extensive methods to understand the underlying structure-property relationship of mechanochromic luminescent molecules is demanding but remains challenging. Herein, the effect of host-guest interaction on the mechanochromic properties of organic molecules is illustrated. A series of pyridinium-functionalized triphenylamine derivatives show bathochromic-shifted emission upon mechanical stimulation. These derivatives bind to cucurbit[8]uril to form homoternary host-guest inclusion complexes through host-stabilized intermolecular charge transfer interactions. Remarkably, the homoternary complexes exhibit longer emission than that of free guests in the solid state (even longer than ground guests), and a further bathochromic-shifted emission is observed upon grinding. Additionally, a heteroternary complex constructed through the encapsulation of pyrene (donor) and pyridinium (acceptor) guest pair in cucurbit[8]uril also displays the mechanochromic luminescent property. This work not only discloses the effect of host-guest inclusion on the mechanochromic property of organic molecules, but also provides a principle and a facile way to design the sequentially red-shifted mechanochromic materials.
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Affiliation(s)
- Dongdong Sun
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Yong Wu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Xie Han
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, PR China
| | - Simin Liu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China.
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, PR China.
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Xiao Y, Zheng K, Zhang N, Wang Y, Yan J, Wang D, Liu X. Facile Synthesis of Tetraphenylethene (TPE)-Based Fluorophores Derived by π-Extended Systems: Opposite Mechanofluorochromism, Anti-Counterfeiting and Bioimaging. Chemistry 2023; 29:e202203772. [PMID: 36746746 DOI: 10.1002/chem.202203772] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/08/2023]
Abstract
Although remarkable progresses are achieved in the design and development of the mono-shift in photoluminescence for mechanofluorochromic materials, it is still a severe challenge to explore the opposite mechanofluorochromic materials with both blue- and red-shifted photoluminescence. Herein, two unprecedented 4,5-bis(TPE)-1H-imidazole fused pyridine or quinoline-based fluorophores X-1 and X-2 were designed and synthesized, and X-1 and X-2, exhibit completely opposite mechanofluorochromic behavior. Under UV lamp, the color of pristine X-1 changed from blue to green with reversible redshifted 27 nm in fluorescence emission spectra after ground, while the color of pristine X-2 changed from red to yellow with reversible blue-shifted 74 nm after ground. The detailed characterizations (including PXRD, SEM and DSC) confirmed that this opposite mechanofluorochromism was attributed to the transformation of order-crystalline and amorphous states. The crystal structure analysis and theoretical calculation further explain that opposite mechanofluorochromic behavior take into account different π-π stacking mode by induced π-extended systems. In addition, these TPE-based fluorophores (X-1 and X-2) exhibited excellent bio-compatibility and fluorescence properties for bio-imaging, writable data storage and anti-counterfeiting materials.
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Affiliation(s)
- Yufeng Xiao
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P.R. China
| | - Kaibo Zheng
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P.R. China
| | - Nuonuo Zhang
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P.R. China
| | - Yanlan Wang
- Department of chemistry and chemical engineering, 252059, Liaocheng, P.R. China
| | - Jiaying Yan
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P.R. China
| | - Dong Wang
- Center for AIE Research, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P.R. China
| | - Xiang Liu
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei, 443002, P.R. China
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Chen Z, Deng DD, Pu S. Recent advances in aggregation-induced emission (AIE)-active tetraphenylethylene-modified luminophores with mechanochromic luminescence characteristics. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Sun AN, Huang XB, Wu DZ. The crystal structure of 2-(2-methyl-6-phenyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione, C21H14O3. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2021-0442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C21H14O3, monoclinic, P21/c (no. 14), a = 4.8318(8) Å, b = 26.590(4) Å, c = 11.821(2) Å, β = 91.050(4)°, V = 1518.4(4) Å3, Z = 4, R
gt
(F) = 0.0401, wR
ref
(F) = 0.1038, T = 296(2) K.
CCDC no.: 2122345
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Affiliation(s)
- An-Na Sun
- College of Chemistry and Materials Engineering, Wenzhou University , Chashan University Town , Wenzhou , Zhejiang Province 325035 , People’s Republic of China
| | - Xiao-Bo Huang
- College of Chemistry and Materials Engineering, Wenzhou University , Chashan University Town , Wenzhou , Zhejiang Province 325035 , People’s Republic of China
| | - Deng-Ze Wu
- College of Chemistry and Materials Engineering, Wenzhou University , Chashan University Town , Wenzhou , Zhejiang Province 325035 , People’s Republic of China
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