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Huang J, Chung Pham T, Coenen D, Vandenwijngaerden J, Gong J, Minh Thi Nguyen H, Van Meervelt L, Van der Auweraer M, Escudero D, Dehaen W. Benzo-Fused BOPAM Fluorophores: Synthesis, Post-functionalization, Photophysical Properties and Acid sensing Applications. Chemistry 2024:e202401837. [PMID: 39157899 DOI: 10.1002/chem.202401837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 08/14/2024] [Accepted: 08/16/2024] [Indexed: 08/20/2024]
Abstract
A novel category of asymmetric boron chromophores with the attachment of two BF2 moieties denoted as BOPAM has been successfully synthesized via a one-pot three-step reaction starting from N-phenylbenzothioamide. This synthetic route results in the production of [a] and [b]benzo-fused BOPAMs along with post-functionalization of the [a]benzo-fused BOPAMs. The photophysical properties of these compounds have been systematically investigated through steady-state absorption and fluorescence emission measurements in solvents at both ambient and cryogenic temperatures, as well as in the solid state. Computational methods have been employed to elucidate the emissive characteristics of the benzo-fused BOPAMs, revealing distinctive photophysical attributes, including solvent-dependent fluorescence intensity. Remarkably, certain BOPAM derivatives exhibit noteworthy photophysical phenomena, such as the induction of off-on fluorescence emission under specific solvent conditions and the manifestation of intermolecular charge transfer states in solid-state matrices. Through post-functionalization strategies involving the introduction of electron-donating groups onto the [a]benzo-fused BOPAM scaffold, an intramolecular charge transfer (ICT) pathway is activated, leading to substantial fluorescence quenching via non-radiative decay processes. Notably, one [a]benzo-fused BOPAM variant exhibits a pronounced fluorescence enhancement upon exposure to acidic conditions, thereby underscoring its potential utility in pH-sensing applications.
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Affiliation(s)
- Jianjun Huang
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Thanh Chung Pham
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
- Quantum Chemistry and Physical Chemistry, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Daan Coenen
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Jonathan Vandenwijngaerden
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Jing Gong
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
- Quantum Chemistry and Physical Chemistry, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Hue Minh Thi Nguyen
- Faculty of Chemistry and Center for Computational Science, Hanoi National University of Education, 136 Xuan Thuy, Hanoi, Vietnam
| | - Luc Van Meervelt
- Biochemistry, Molecular and Structural Biology, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Mark Van der Auweraer
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Daniel Escudero
- Quantum Chemistry and Physical Chemistry, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Wim Dehaen
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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de Melo SMG, Dos Santos T, Silva DG, Martins YA, Eckhardt P, Lopez RFV, Opatz T, Protti S, da Silva Emery F. Versatile Metal-Free Arylation of BODIPY and Bis(BF 2) Chromophores by Using Arylazosulfones in a Sunflow System. Chemistry 2024:e202402634. [PMID: 39078075 DOI: 10.1002/chem.202402634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 07/31/2024]
Abstract
BODIPYs have a well-established role in biological sciences as chemosensors and versatile biological markers due to their chemical reactivity, which allows for fine-tuning of their photophysical characteristics. In this work, we combined the unique reactivity of arylazo sulfones with the advantages of a "sunflow" reactor to develop a fast, efficient, and versatile method for the photochemical arylation of BODIPYs and other chromophores. This approach resulted in red-shifted emitting fluorophores due to extended electronic delocalization at the 3- and 5-positions of the BODIPY core. This method represents an advantageous approach for BODIPY functionalization compared to existing strategies.
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Affiliation(s)
- Shaiani Maria Gil de Melo
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
| | - Thiago Dos Santos
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
- Center of Research and Advancements in Fragments and Molecular Targets-CRAFT, FCFRP-USP, Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
| | - Daniel Gedder Silva
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
- Center of Research and Advancements in Fragments and Molecular Targets-CRAFT, FCFRP-USP, Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
| | - Yugo Araújo Martins
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
| | - Paul Eckhardt
- Department of Chemistry, Johannes Gutenberg University, Mainz, Duesbergweg 10-14, Mainz, 55128, Germany
| | - Renata Fonseca Vianna Lopez
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
| | - Till Opatz
- Department of Chemistry, Johannes Gutenberg University, Mainz, Duesbergweg 10-14, Mainz, 55128, Germany
| | - Stefano Protti
- PhotoGreen Lab, Department of Chemistry, Viale Taramelli 12, 27100, Pavia, Italy
| | - Flavio da Silva Emery
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (FCFRP-USP), Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
- Center of Research and Advancements in Fragments and Molecular Targets-CRAFT, FCFRP-USP, Av. do Café, s/n° - Campus Universitário da USP, 14040-903, Ribeirão Preto/SP, Brazil
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Cui L, Furuta R, Harada T, Konta T, Hoshino Y, Ono T. Simultaneous discovery of chiral and achiral dyes: elucidating the optical functions of helical and flag-hinged boron tetradentate complexes. Dalton Trans 2024; 53:9183-9191. [PMID: 38742609 DOI: 10.1039/d4dt01172d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The construction of novel complexes can lead to the manifestation of unexpected structures and properties, thereby making chemical exploration in experiments a potential source for novel discoveries. In this study, by reacting 6,6'-dihydrazineyl-2,2'-bipyridine with acyl chlorides and subsequently coordinating with boron trifluoride, two different boron-tetradentate ligand complexes were simultaneously generated. One of these complexes exhibited a unique structure in which tetra-BF2 moieties coordinated to all four coordination sites of the ligand molecule, forming a flag-hinged structure around the bipyridine part. The second complex featured a helical structure formed by the hybridization of two BF2 and one B-O-B moieties, representing a highly unusual form of the complex. The structures of these two boron complexes were consistently observed when various substituted acyl chlorides were employed. Furthermore, it was found that enhancing electron-donor properties could induce a redshift in emissions. Utilizing the dimethylamino group as the proton receptor promoted a yellow-to-blue fluorescence switch in the tetra-BF2 complex and an OFF/ON fluorescence in the B-O-B bridged complex upon protonation. The helical chirality observed in the latter complex resulted in stable (P)/(M)-enantiomers after optical resolution. This complex exhibited circular dichroism with a |gabs| of up to 1.2 × 10-2 and circularly polarized luminescence with a |glum| on the order of 10-3 in solution and polymer film.
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Affiliation(s)
- Luxia Cui
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Ryoji Furuta
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Takunori Harada
- Faculty of Science and Technology, Graduate School of Engineering, Oita University, 700 Dannoharu, Oita City 870-1192, Japan
| | - Takeru Konta
- Faculty of Science and Technology, Graduate School of Engineering, Oita University, 700 Dannoharu, Oita City 870-1192, Japan
| | - Yu Hoshino
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toshikazu Ono
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Qian W, Wei S, Yu C, Sun Y, Li H, Yu T, Zhang H, Li Y, Jiao L, Hao E. Solid-State Emissive meso-Aryl/Alkyl-Substituted and Heteroatom-Mixed BOPPY Dyes: Syntheses, Structures, Physicochemical, Redox Properties, and Computational Analysis. Inorg Chem 2024; 63:5432-5445. [PMID: 38462725 DOI: 10.1021/acs.inorgchem.3c04036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
A series of solid-state emissive meso-aryl/alkyl-substituted and heteroatom-mixed bisBF2-anchoring fluorophore incorporating pyrrolyl-pyridylhydrazone (BOPPY) dyes have been developed by a one-pot condensation of ketonized or formylated pyrroles and 2-heterocyclohydrazine as well as the subsequent borylation coordination. Interestingly, the BOPPY dyes with meso-alkyl-substituted groups or oxygen-substituted pyridine moieties exhibit high fluorescence quantum yields (QYs) of up to 79%, the highest solid QY of 74%, and long lifetimes independent of polarity in the available BOPPYs. On the other hand, the BOPPYs with meso-aryl or N-substituted moieties display a high solution QY of up to 93% and slight emission wavelength maxima. However, the S-substituted BOPPY dye exhibited weak fluorescence in all studied solvents, which was attributed to the structural flexibility of the N-C-S bond and different from those BOPPYs with O or N substitution, indicated by quantum calculations. And the significant excited-state structural rearrangement in a polar solvent is further confirmed by femtosecond time-resolved transient absorption spectroscopy. More importantly, those novel and barely fluorescent BOPPYs in acetonitrile show advantageous aggregation-induced enhanced emission and viscosity-dependent activities. These advancements in the photophysical and electrochemical properties of BOPPY dyes offer valuable insights into their further development and potential applications.
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Affiliation(s)
- Wanping Qian
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Shengsheng Wei
- State Key Laboratory of Information Photonic and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
| | - Changjiang Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
- Postdoctoral Research Center of Suntex TEXTILE Technology Co, Ltd., Wuhu 241200, Anhui, China
| | - Yingzhu Sun
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Hanqiong Li
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Tingting Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Hongtao Zhang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Yang Li
- State Key Laboratory of Information Photonic and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
| | - Lijuan Jiao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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Huang J, Zheng D, Fang Y, Dehaen W. Design and synthesis of a BOAHY-derived tracker for fluorescent labeling of mitochondria. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123201. [PMID: 37541090 DOI: 10.1016/j.saa.2023.123201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 07/07/2023] [Accepted: 07/21/2023] [Indexed: 08/06/2023]
Abstract
Fluorescence microscopy has proven to be a crucial powerful tool to specifically visualize cellular organelles. In-depth visualization of the structure of mitochondria in living cells is of great value to better understand their function. Herein, based on our experience in construction of fluorescent difluoroboronate anchored acylhydrazones (BOAHY) chromophores, we rationally designed a novel monoboron complex with a connected triphenylphosphonium moiety, and evaluated its spectroscopic properties, cytotoxicity and intracellular localization. Owing to the positive charge on our fluorescent dye, the molecule had an excellent mitochondria-targeting ability (Pearson's correlation is 0.86).To the best of our knowledge, this is the first example of a BOAHY dye which has been applied as an efficient tracker to target mitochondria in living cells.
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Affiliation(s)
- Jianjun Huang
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Dongbin Zheng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yuyu Fang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Wim Dehaen
- Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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Feng R, Chen Z, Wang Y, Pan J, Shimizu S. Facile Synthesis of Asymmetric aza-Boron Dipyrromethene Analogues Bearing Quinoxaline Moiety. Molecules 2023; 28:7940. [PMID: 38138430 PMCID: PMC10745853 DOI: 10.3390/molecules28247940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/02/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
An asymmetric aza-BODIPY analogue bearing quinoxaline moiety was synthesized via a titanium tetrachloride-mediated Schiff-base-forming reaction of 6,7-dimethyl-1,4-dihydroquinoxaline-2,3-dione and benzo[d]thiazol-2-amine. This novel aza-BODIPY analogue forms a complementary hydrogen-bonded dimer due to the quinoxaline moiety in the crystal structure. It also shows intense absorption and fluorescence, with fluorescence quantum yields close to unity. The electrochemical measurements and the DFT calculations revealed the presence of the low-lying HOMO, which benefits their potential applications as an electron-transporting material.
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Affiliation(s)
- Ru Feng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (R.F.); (Z.C.); (Y.W.)
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
- Jiangsu Chunlan Clean Energy Academy Co., Ltd., Taizhou 225300, China
| | - Zuoxu Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (R.F.); (Z.C.); (Y.W.)
| | - Yue Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (R.F.); (Z.C.); (Y.W.)
- Jiangsu Agrochem Laboratory Co., Ltd., Changzhou 213022, China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (R.F.); (Z.C.); (Y.W.)
| | - Soji Shimizu
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, Fukuoka 819-0395, Japan
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Guang J, Fan W, Liu Z, Huang D. Synthesis of N,O-bidentate organic difluoroboron complexes and their photophysical studies. BMC Chem 2023; 17:53. [PMID: 37303046 DOI: 10.1186/s13065-023-00974-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/30/2023] [Indexed: 06/13/2023] Open
Abstract
We disclose a novel boron trifluoride induced C-H activation and difluoroboronation at room temperature, thus providing a straightforward gateway to a series of N,O-bidentate organic BF2 complexes. The scope of the method is demonstrated with 24 examples. All the synthesized compounds exhibit fluorescence and some of them have large Stokes shifts.
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Affiliation(s)
- Jin Guang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, Fujian,, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Weibin Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, Fujian,, China
| | - Zhiqi Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, Fujian,, China
| | - Deguang Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, Fujian,, China.
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Yu C, Sun Y, Fang X, Li J, Wu Q, Bu W, Guo X, Wang H, Jiao L, Hao E. Aromatic-Ring-Fused BOPPY Fluorophores: Synthesis, Spectral, Redox Properties, and Bioimaging Application. Inorg Chem 2022; 61:16718-16729. [PMID: 36206458 DOI: 10.1021/acs.inorgchem.2c02517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tetracoordinated organoboron dyes exhibiting strong fluorescence in either solution or the solid state are currently receiving much attraction in view of their photovoltaic, optoelectronic, and biological applications. Herein, a series of aromatic-ring-fused BOPPY dyes have been developed by one-pot condensation of formylated isoindoles or indoles and pyridinylhydrazine followed by subsequent borylation coordination. The facile synthesis provides excellent diversity of these unsymmetrical α-benzo- and β-benzothiophene-fused BOPPY dyes with intriguing photophysical properties owing to their rigid and planar structure and extended π-conjugation while containing a reactive site. They display intense green to orange fluorescence in solution and red-to-near-infrared emission in the solid state, with high fluorescence quantum yields up to 92 and 21%, respectively, relatively large Stokes shifts, and excellent photostability. Furthermore, two representative benzo-fused BOPPY probes with morpholine or benzenesulfonamide groups were developed and used to selectively "light up" the subcellular organelles such as lysosomes and endoplasmic reticulum under ultralow concentration, respectively.
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Affiliation(s)
- Changjiang Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China.,Postdoctoral Research Center of Suntex TEXTILE Technology Company, Ltd., Wuhu, 241200Anhui, China
| | - Yingzhu Sun
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Xingbao Fang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai264005, Shandong, China
| | - Qinghua Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei230012, China
| | - Weibin Bu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Xing Guo
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Hua Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Lijuan Jiao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
| | - Erhong Hao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu241002, China
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Rubanov ZM, Levin VV, Kokorekin VA, Dilman AD. Novel fluorescent difluoroboryl chelate complexes derived from N-benzothiazolyl hydrazones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Da Lama A, Pérez Sestelo J, Sarandeses LA, Martínez MM. Microwave-assisted direct synthesis of BODIPY dyes and derivatives. Org Biomol Chem 2022; 20:9132-9137. [PMID: 36177899 DOI: 10.1039/d2ob01349e] [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
A microwave-assisted one-pot synthesis of BODIPY dyes from pyrroles and acyl chlorides is reported. This protocol features short reaction times, low temperatures, minimum amount of solvent, scalability, versatility, and good yields of the products. These simple, efficient and sustainable conditions can be also applied to the synthesis of derivatives such as BOPHY, BOAHY and BOPAHY.
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Affiliation(s)
- Ana Da Lama
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Luis A Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - M Montserrat Martínez
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
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Cui L, Shinjo H, Ichiki T, Deyama K, Harada T, Ishibashi K, Ehara T, Miyata K, Onda K, Hisaeda Y, Ono T. Highly Fluorescent Bipyrrole-Based Tetra-BF 2 Flag-Hinge Chromophores: Achieving Multicolor and Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2022; 61:e202204358. [PMID: 35511507 DOI: 10.1002/anie.202204358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Indexed: 12/12/2022]
Abstract
This study reports the facile syntheses of tetra-boron difluoride (tetra-BF2 ) complexes, flag-hinge-like molecules that exhibit intense green-to-orange luminescence in solution and yellow-to-red emission in the solid states. Single-crystal structure analysis and density functional theory calculations suggested a bent structure of this series of compounds. The complexes also exhibited excellent optical properties, with quantum yields reaching 100 % and a large Stokes shift. These properties were attributed to the altered bending angle of the molecule in the S1 excited state. As the rotational motion was suppressed around the 2,2'-bipyrrole axis, atropisomers with axial chirality were formed, which are optically resolvable into (R) and (S)-enantiomers through a chiral column. The atropisomers thus function as circularly polarized luminescent (CPL) materials, in which the color (green, green-yellow, and yellow) can be varied by controlling the aggregation state. This rational design of multi-BF2 complexes can potentially realize novel photofunctional materials.
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Affiliation(s)
- Luxia Cui
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hyuga Shinjo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takafumi Ichiki
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Koichi Deyama
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takunori Harada
- Faculty of Science and Technology, Graduate School of Engineering, Oita University, 700 Dannoharu, Oita City, 870-1192, Japan
| | - Kohei Ishibashi
- Faculty of Science and Technology, Graduate School of Engineering, Oita University, 700 Dannoharu, Oita City, 870-1192, Japan
| | - Takumi Ehara
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kiyoshi Miyata
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Ken Onda
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Toshikazu Ono
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
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12
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Cui L, Shinjo H, Ichiki T, Deyama K, Harada T, Ishibashi K, Ehara T, Miyata K, Onda K, Hisaeda Y, Ono T. Highly Fluorescent Bipyrrole‐Based Tetra‐BF
2
Flag‐Hinge Chromophores: Achieving Multicolor and Circularly Polarized Luminescence. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Luxia Cui
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Hyuga Shinjo
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Takafumi Ichiki
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Koichi Deyama
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Takunori Harada
- Faculty of Science and Technology Graduate School of Engineering Oita University 700 Dannoharu Oita City 870-1192 Japan
| | - Kohei Ishibashi
- Faculty of Science and Technology Graduate School of Engineering Oita University 700 Dannoharu Oita City 870-1192 Japan
| | - Takumi Ehara
- Department of Chemistry Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Kiyoshi Miyata
- Department of Chemistry Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Ken Onda
- Department of Chemistry Graduate School of Science Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Toshikazu Ono
- Department of Chemistry and Biochemistry Graduate School of Engineering Center for Molecular Systems (CMS) Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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13
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Mondal D, Sardar G, Kabra D, Balakrishna MS. 2,2'-Bipyridine derived doubly B ← N fused bisphosphine-chalcogenides, [C 5H 3N(BF 2){NCH 2P(E)Ph 2}] 2 (E = O, S, Se): tuning of structural features and photophysical studies. Dalton Trans 2022; 51:6884-6898. [PMID: 35441638 DOI: 10.1039/d2dt00287f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2,2'-Bipyridine based bisphosphine [C5H3N{N(H)CH2PPh2}]2 (1) and its bischalcogenide derivatives [C5H3N{N(H)CH2P(E)Ph2}]2 (2, E = O; 3, E = S; 4, E = Se) were synthesized, and further reacted with BF3·Et2O/Et3N to form doubly B ← N fused compounds [C5H3N(BF2){NCH2P(E)Ph2}]2 (5, E = O; 6, E = S; 7, E = Se) in excellent yields. The influence of the PE bonds on the electronic properties of the doubly B ← N fused systems and their structural features were investigated in detail, supported by extensive experimental and computational studies. Compound 6 exhibited a very high quantum yield of ϕ = 0.56 in CH2Cl2, whereas compound 7 showed a least quantum yield of ϕ = 0.003 in acetonitrile. Density functional theory (DFT) calculations demonstrated that the LUMO/HOMO of compounds 5-7 mostly delocalized over the entire π-conjugated frameworks. The involvement of PE bonds in the HOMO energy level of these compounds follows the order: PO < PS < PSe. Time-correlated single photon counting (TCSPC) experiments of compounds 5-7 revealed the singlet lifetime of 4.26 ns for 6, followed by 4.03 ns for 5 and a lowest value of 2.18 ns (τ1) and 0.47 ns (τ2) with a double decay profile for 7. Our findings provide important strategies for the design of highly effective B ← N bridged compounds and tuning their photophysical properties by oxidizing phosphorus with different chalcogens. Compounds 5 and 6 have been employed as green emitters (λem = 515 nm) in fluorescent organic light-emitting diodes (OLEDs). For compound 5, doped into the poly(9-vinylcarbazole) (PVK) matrix with 5 wt% doping concentration, nearly 90 Cd m-2 luminance with 0.022% external quantum efficiency (EQE) was achieved. The best performance was observed for compound 6 doped into PVK by 1 wt% having a maximum luminance of 350 Cd m-2 and a similar EQE value.
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Affiliation(s)
- Dipanjan Mondal
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Gopa Sardar
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Dinesh Kabra
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| | - Maravanji S Balakrishna
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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14
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Murali AC, Nayak P, Venkatasubbaiah K. Recent advances in the synthesis of luminescent tetra-coordinated boron compounds. Dalton Trans 2022; 51:5751-5771. [PMID: 35343524 DOI: 10.1039/d2dt00160h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Tetra-coordinated boron compounds offer a plethora of luminescent materials. Different chelation around the boron center (O,O-, N,C-, N,O-, and N,N-) has been explored to tune the electronic and photophysical properties of tetra-coordinated boron compounds. A number of fascinating molecules with interesting properties such as aggregation induced emission, mechanochromism and tunable emission by changing the solvent polarity were realised. Owing to their rich and unique properties, some of the molecules have shown applications in making optoelectronic devices, probes and so on. This perspective provides an overview of the recent developments of tetra-coordinated boron compounds and their potential applications.
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Affiliation(s)
- Anna Chandrasekar Murali
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Prakash Nayak
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), an OCC of Homi Bhabha National Institute, Bhubaneswar-752050, Odisha, India.
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15
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Ihara M, Cui L, Konishi Y, Hisaeda Y, Ono T. Design of Dimeric Dinuclear Boron Complexes with Flexible Linkers: Aggregation-Induced White-Light Emission via Molecular Engineering. CHEM LETT 2022. [DOI: 10.1246/cl.210794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Megumi Ihara
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Luxia Cui
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuto Konishi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Toshikazu Ono
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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16
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Li W, Gong Q, Guo X, Wu Q, Chang F, Wang H, Zhang F, Hao E, Jiao L. Synthesis, Reactivity, and Properties of a Class of π-Extended BODIPY Derivatives. J Org Chem 2021; 86:17110-17118. [PMID: 34748343 DOI: 10.1021/acs.joc.1c02216] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A new family of π-extended BODIPY derivatives were obtained through the condensation of aldehyde and pyrrole in aqueous solution in the presence of HCl. The new rigid π-framework extends beyond the dipyrromethene unit, which is significantly different from classical BODIPYs in the electronic configuration. Both π-extended BODIPYs displayed intense absorption and moderate emission with maxima around 565 and 620 nm, respectively, and showed interesting reactivity toward various nucleophiles. Moreover, these π-extended BODIPYs were developed as fluorescent probes for rapid and selective detection of GSH and were successfully applied for live-cell imaging.
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Affiliation(s)
- Wanwan Li
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qingbao Gong
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Xing Guo
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qinghua Wu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Fei Chang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Hua Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Fan Zhang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Lijuan Jiao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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17
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Horsten T, de Jong F, Theunissen D, Van der Auweraer M, Dehaen W. Synthesis and Spectroscopic Properties of 1,2,3-Triazole BOPAHY Dyes and Their Water-Soluble Triazolium Salts. J Org Chem 2021; 86:13774-13782. [PMID: 34516732 DOI: 10.1021/acs.joc.1c01459] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Water-soluble BOPAHY fluorophores have not yet been reported. The potential of 1,2,3-triazolium salts for the formation of water-soluble chromophores is explored. 1,2,3-Triazole-substituted pyrroles were synthesized in a metal-free pathway and alkylated to obtain water-soluble 1,2,3-triazolium BOPAHY dyes. High fluorescence quantum yields were observed for triazole-bridged BOPAHY dyes in DCM and moderate fluorescence quantum yields for 1,2,3-triazolium-bridged BOPAHY chromophores in DCM and water. The fluorescence of the freely rotatable 1,2,3-triazolium-linked BOPAHYs is partially quenched in water.
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Affiliation(s)
- Tomas Horsten
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Flip de Jong
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Dries Theunissen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Mark Van der Auweraer
- Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
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18
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Yu C, Fang X, Wang H, Guo X, Sun L, Wu Q, Jiao L, Hao E. A Family of Highly Fluorescent and Membrane-Permeable Bis(BF 2) Acyl-Pyridinylhydrazine Dyes with Strong Solid-State Emission and Large Stokes Shifts: The BOAPH Fluorophores. J Org Chem 2021; 86:11492-11501. [PMID: 34342463 DOI: 10.1021/acs.joc.1c01042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic small-molecule fluorescent chromophores have become essential to modern chemical, biological, and materials related investigations. Herein, a straightforward synthesis and subsequent borylation were presented to form a novel family of bisBF2-anchoring acyl-pyridinylhydrazine, which we named BOAPH. The chromophore enjoys outstanding structural diversities owing to varied acyl chlorides and N-heteroarenylhydrazides. These resultant BOAPH dyes are confirmed by NMR, HRMS, and single-crystal X-ray structure analysis. Their spectroscopic properties were studied, and most of the strong absorbance and bright fluorescence with maximum wavelengths centered in the range of 400 and 650 nm. More importantly, they exhibit promising fluorescence quantum yields up to 0.79 in solution and solid states, good photostability, and large Stokes shifts. Furthermore, a respective BOAPH dye with a para-dimethylaminophenyl group exhibited the interesting ability of ultrafast staining and two-photon imaging, which can specifically label lipid droplets of living cells immediately without the need for incubation.
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Affiliation(s)
- Changjiang Yu
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China.,Postdoctoral Research Center of Suntex TEXTILE Technology Co, Ltd., Wuhu, Anhui 241200, China.,State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xingbao Fang
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Hua Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Xing Guo
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Lilin Sun
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Qinghua Wu
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Lijuan Jiao
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Erhong Hao
- Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, China
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19
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Schrage BR, Nemykin VN, Ziegler CJ. BOSHPY Fluorophores: BODIPY Analogues with Single Atom Controlled Aggregation. Org Lett 2021; 23:5246-5250. [PMID: 34151578 DOI: 10.1021/acs.orglett.1c01776] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The reaction of diiminoisoindoline and iminoxoisoindoline with aminoazoles results in the formation of bidentate chelates that can be considered a semihemiporphyrazine. These chelates react with BF3 to produce fluorescent compounds that are structurally analogous to the BODIPY dyes. These difluoroboron semihemiporphyrazines (BOSHPYs) aggregate, and the type of aggregation (H or J) is determined by a single atom at the periphery of the ligand (O or N). Notably, the imine terminated compounds remain fluorescent upon aggregation.
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Affiliation(s)
- Briana R Schrage
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Victor N Nemykin
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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20
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Wang J, Fang X, Guo X, Wu Q, Gong Q, Yu C, Hao E, Jiao L. Sterically Protected and Conformation-Restricted BOBHY Dyes with Bright Near-Infrared Fluorescence: N 2O-type Expanded BOPHY Dyes Derived from Boronic Acids. Org Lett 2021; 23:4796-4801. [PMID: 34080878 DOI: 10.1021/acs.orglett.1c01515] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new family of N2O-type hydrazine-containing bipyrrole boron complexes has been developed via a one-pot condensation of formylisoindole, hydrazine, and various organoboronic acids. Because of the conformation-restricted coplanar structure and the axial-substituted aryl groups, these novel dyes show deep-red absorption, bright near-infrared (NIR) fluorescence in both solution and solid states, and good solubility in organic solvents. The derivative with pyridinium ions also has been synthesized as an NIR mitochondrially targetable fluorescent probe.
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Affiliation(s)
- Jun Wang
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.,Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Department of Chemical and Chemical Engineering, Hefei Normal University, Hefei 230601, China
| | - Xingbao Fang
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Xing Guo
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qinghua Wu
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qingbao Gong
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Changjiang Yu
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Lijuan Jiao
- Laboratory of Functional Molecular Solids, Ministry of Education, School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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21
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Tang YJ, Fang WL, Ren K, Guo XF, Wang H. A turn-on homodimer fluorescent probe based on homo-FRET for the sensing of biothiols in lysosome: a trial of a new turn-on strategy. Analyst 2021; 146:2974-2982. [PMID: 33949411 DOI: 10.1039/d1an00161b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Fluorescence resonance energy transfer (FRET) is often applied to construct fluorescent probes for acquiring high selectivity and sensitivity. According to the FRET theory, a homodimer composed of two identical fluorophores with a small Stokes shift has only weak fluorescence due to homo-FRET between fluorophores, and the fluorescence could be recovered after the destruction of the homodimer. In this study, we designed and synthesized a homodimer fluorescent probe, namely 1,3,5,7-tetramethyl-8-(4'-phenylthiophenol)-boron difluoride-dipyrrole methane dimer (D-TMSPB), based on this turn-on strategy. In D-TMSPB, the disulfide moiety was selected as the response moiety of biothiols, and BODIPY fluorophore was chosen as both donor and acceptor in FRET due to the ultra-small Stokes shifts and obvious overlap of its excitation/emission peak. D-TMSPB exhibited only weak fluorescence. After selective reaction with biothiols, FRET was destroyed and the derivative exhibited strong fluorescence at 514 nm with the limit of detection of about 0.15 μM for GSH. Notably, the derivative of biothiols shows remarkable fluorescence only in acidic conditions, which accords with the internal environment of lysosome. Thus, D-TMSPB was applied to image the biothiols of lysosome in living cells. The turn-on fluorescence of D-TMSPB indicated that homo-FRET is a practical strategy to design turn-on fluorescent probes, particularly for the sensing mechanism based on leaving groups.
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Affiliation(s)
- Ying-Jie Tang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Wen-Le Fang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Kui Ren
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Xiao-Feng Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Hong Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
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22
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Bicyclic 1,3a,6a-Triazapentalene Chromophores: Synthesis, Spectroscopy and Their Use as Fluorescent Sensors and Probes. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9010016] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The 1,3a,6a-triazapentalene (TAP) is an aromatic heterocyclic fluorescent dye with interesting features such as its small size, large Stokes shift, solvatochromism, and emission wavelengths that are spread across the visible spectrum. TAPs have been synthesized via different synthetic strategies involving click−cyclization−aromatization domino reactions, gold-catalyzed cyclization of propargyl triazoles or triazolization of acetophenones. As a result, TAPs with diverse substitution patterns were obtained, showing varying fluorescence properties. Based on these properties, several TAPs have been selected and studied as fluorescent imaging probes in living cells and as sensors. This mini review provides an overview of the research on the bicyclic TAPs and does not comment on the literature about benzo or otherwise fused systems. The synthetic methodologies for the preparation of TAPs, the substituent effects on the fluorescence properties, and the behavior of the TAP core as an element of biological imaging probes and sensors are discussed.
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23
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Bismillah AN, Aprahamian I. Fundamental studies to emerging applications of pyrrole-BF2 (BOPHY) fluorophores. Chem Soc Rev 2021; 50:5631-5649. [DOI: 10.1039/d1cs00122a] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the up-and-coming pyrrole-BF2 (BOPHY) fluorophores, with a focus on synthetic procedures, photophysical properties – including structure–property analyses – as well as emerging applications.
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24
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Shamova LI, Zatsikha YV, Nemykin VN. Synthesis pathways for the preparation of the BODIPY analogues: aza-BODIPYs, BOPHYs and some other pyrrole-based acyclic chromophores. Dalton Trans 2021; 50:1569-1593. [DOI: 10.1039/d0dt03964k] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This mini-review summarizes the synthesis strategies for the preparation and post-functionalization of aza-BODIPYs, BOPHYs, “half-Pcs”, biliazines, MB-DIPYs, semihemiporphyrazines, BOIMPYs, BOPPYs, BOPYPYs, BOAHYs, and BOAPYs.
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Affiliation(s)
| | | | - Victor N. Nemykin
- Department of Chemistry
- University of Manitoba
- Winnipeg
- Canada
- Department of Chemistry
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