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Chowdhury P, Lu ZY, Su SP, Liu MH, Lin CY, Wang MW, Luo YC, Lee YJ, Chiang HK, Chan YH. Ultrabright Dibenzofluoran-Based Polymer Dots with NIR-IIa Emission Maxima and Unusual Large Stokes Shifts for 3D Rotational Stereo Imaging. Adv Healthc Mater 2024; 13:e2400606. [PMID: 38683681 DOI: 10.1002/adhm.202400606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/23/2024] [Indexed: 05/02/2024]
Abstract
Emerging organic molecules with emissions in the second near-infrared (NIR-II) region are garnering significant attention. Unfortunately, achieving accountable organic emission intensity over the NIR-IIa (1300 nm) region faces challenges due to the intrinsic energy gap law. Up to the current stage, all reported organic NIR-IIa emitters belong to polymethine-based dyes with small Stokes shifts (<50 nm) and low quantum yield (QY; ≤0.015%). However, such polymethines have proved to cause self-absorption with constrained emission brightness, limiting advanced development in deep-tissue imaging. Here a new NIR-IIa scaffold based on rigid and highly conjugated dibenzofluoran core terminated by amino-containing moieties that reveal emission peaks of 1230-1305 nm is designed. The QY is at least 10 times higher than all synthesized or reported NIR-IIa polymethines with extraordinarily large Stokes shifts of 370-446 nm. DBF-BJ is further prepared as a polymer dot to demonstrate its in vivo 3D stereo imaging of mouse vasculature with a 1400 nm long-pass filter.
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Affiliation(s)
- Partha Chowdhury
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Zhao-Yu Lu
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Shih-Po Su
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan
| | - Meng-Huan Liu
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Chun-Yi Lin
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Man-Wen Wang
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Yi-Chi Luo
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
| | - Yi-Jang Lee
- Department of Biomedical Imaging and Radiological Sciences, School of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan
| | - Huihua Kenny Chiang
- Institute of Biomedical Engineering, National Yang Ming Chiao Tung University, Taipei, 11221, Taiwan
| | - Yang-Hsiang Chan
- Department of Applied Chemistry/Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30050, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
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2
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Ojha M, Banerjee M, Mandal M, Singha T, Ray S, Datta PK, Mandal M, Anoop A, Singh NDP. Two-Photon-Responsive "TICT + AIE" Active Naphthyridine-BF 2 Photoremovable Protecting Group: Application for Specific Staining and Killing of Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:21486-21497. [PMID: 38640485 DOI: 10.1021/acsami.4c00299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
The combined effects of twisted intramolecular charge transfer (TICT) and aggregation-induced emission (AIE) phenomena have demonstrated a significant influence on excited-state chemistry. These combined TICT and AIE features have been extensively utilized to enhance photodynamic and photothermal therapy. Herein, we demonstrated the synergistic capabilities of TICT and AIE phenomena in the design of the photoremovable protecting group (PRPG), namely, NMe2-Napy-BF2. This innovative PRPG incorporates TICT and AIE characteristics, resulting in four remarkable properties: (i) red-shifted absorption wavelength, (ii) strong near-infrared (NIR) emission, (iii) viscosity-sensitive emission property, and (iv) accelerated photorelease rate. Inspired by these intriguing attributes, we developed a nanodrug delivery system (nano-DDS) using our PRPG for cancer treatment. In vitro studies showed that our nano-DDS manifested effective cellular internalization, specific staining of cancer cells, high-resolution confocal imaging of cancerous cells in the NIR region, and controlled release of the anticancer drug chlorambucil upon exposure to light, leading to cancer cell eradication. Most notably, our nano-DDS exhibited a substantially increased two-photon (TP) absorption cross section (435 GM), exhibiting its potential for in vivo applications. This development holds promise for significant advancements in cancer treatment strategies.
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Affiliation(s)
- Mamata Ojha
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Moumita Banerjee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Madhurima Mandal
- Department of School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Tara Singha
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Souvik Ray
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Prasanta K Datta
- Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Mahitosh Mandal
- Department of School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - N D Pradeep Singh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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3
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Chen P, Li S, Xu Z, Cabral H. Nanoassemblies of heptamethine cyanine dye-initiated poly(amino acid) enhance ROS generation for effective antitumour phototherapy. NANOSCALE HORIZONS 2024; 9:731-741. [PMID: 38505973 DOI: 10.1039/d3nh00584d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Phototherapy shows great potential for pinpoint tumour treatment. Heptamethine cyanine dyes like IR783 have high potential as agents for antitumour phototherapy due to their inherent tumour targeting ability, though their effectiveness in vivo is unsatisfactory for clinical translation. To overcome this limitation, we present an innovative strategy involving IR783-based polymeric nanoassemblies that improve the dye's performance as an antitumoural photosensitizer. In the formulation, IR783 is modified with cysteamine and used to initiate the ring-opening polymerization (ROP) of the N-carboxyanhydride of benzyl-L-aspartate (BLA), resulting in IR783-installed poly(BLA). Compared to free IR783, the IR783 dye in the polymer adopts a twisted molecular conformation and tuned electron orbital distribution, remarkably enhancing its optical properties. In aqueous environments, the polymers spontaneously assemble into nanostructures with 60 nm diameter, showcasing surface-exposed IR783 dyes that function as ligands for cancer cell and mitochondria targeting. Moreover, the nanoassemblies stabilized the dyes and enhanced the generation of reactive oxygen species (ROS) upon laser irradiation. Thus, in murine tumor models, a single injection of the nanoassemblies with laser irradiation significantly inhibits tumour growth with no detectable off-target toxicity. These findings highlight the potential for improving the performance of heptamethine cyanine dyes in antitumor phototherapy through nano-enabled strategies.
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Affiliation(s)
- Pengwen Chen
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Shangwei Li
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Zhining Xu
- Polymer Chemistry and Physics Research Group, HUN-REN Research Centre for Natural Sciences, Budapest, H-1117, Hungary
- Faculty of Science, Eötvös Loránd University, Budapest, H-1117, Hungary
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8656, Japan.
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4
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Zheng H, Li YX, Xiong WC, Wang XC, Gong SS, Pu S, Shi R, Sun Q. Mechanistic insights into diversified photoluminescence behaviours of BF 2 complexes of N-benzoyl 2-aminobenzothiazoles. Phys Chem Chem Phys 2024; 26:11611-11617. [PMID: 38546106 DOI: 10.1039/d4cp00101j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Many BF2 complexes of heteroaromatics are well known for their dual-state emission (DSE) properties. However, AIE and ACQ effects have also been observed in certain cases. To date, no rational explanations have been proposed for these uncommon photoluminescence (PL) behaviours. The current research prepared four BF2 complexes of N-benzoyl 2-aminobenzothiazoles with diversified photoluminescence (PL) properties as model compounds and utilized quantum chemical calculation tools to address this issue. Theoretical calculations revealed that the electron-donating groups (EDGs) at the para-position of the exocyclic phenyl ring exert significant influence on their ground-state electronic structures and vertical excitation features. Potential energy curve (PEC) analysis showed that the exocyclic phenyl ring and NMe2 could not function as effective rotors due to elevated energy barriers. Only the NPh2 of BFBB-3 could spontaneously rotate ∼60° to induce the formation of an emissive twisted intramolecular charge transfer (TICT) state. The two-channel model involving both vibronic relaxation and S0/S1 surface crossing revealed that the drastic narrowing of the S1/S0 energy gap in the region approaching minimun energy conical intersection (MECI) led to the generation of a dark state in BFBB-1. The small energy barrier to access the dark-state region makes the resulting fast internal conversion a competitive channel for excited-state deactivation. In contrast, the presence of EDGs in BFBB-2 and 4 inhibits this pathway, thereby resulting in intense fluorescence emissions in solution. In addition, crystallographic analysis illustrated that the F atoms perpendicular to the polyheterocycle promoted a slipped face-to-face packing mode and enhanced intermolecular interactions. The efficiencies of their solid-state emissions are mainly affected by the degree of π-π overlaps.
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Affiliation(s)
- He Zheng
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
| | - Yan-Xue Li
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
| | - Wen-Chao Xiong
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
| | - Xing-Cong Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
| | - Shan-Shan Gong
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
| | - Shouzhi Pu
- Department of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, P. R. China.
| | - Rongwei Shi
- School of Material and Chemical Engineering, Tongren University, Tongren, 554300, P. R. China.
| | - Qi Sun
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, 605 Fenglin Avenue, Nanchang, 330013, P. R. China.
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5
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Potopnyk MA, Mech-Piskorz J, Angulo G, Ceborska M, Luboradzki R, Andresen E, Gajek A, Wisniewska A, Resch-Genger U. Aggregation/Crystallization-Induced Emission in Naphthyridine-Based Carbazolyl-Modified Donor-Acceptor Boron Dyes Tunable by Fluorine Atoms. Chemistry 2024; 30:e202400004. [PMID: 38361470 DOI: 10.1002/chem.202400004] [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: 01/02/2024] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/17/2024]
Abstract
Four donor-acceptor boron difluoride complexes based on the carbazole electron donor and the [1,3,5,2]oxadiazaborinino[3,4-a][1,8]naphthyridine acceptor were designed, synthesized, and systematically spectroscopically investigated in solutions, in dye-doped polymer films, and in the solid states. The dyes exhibit an intense blue to red solid-state emission with photoluminescence quantum yields of up to 59 % in pure dye samples and 86 % in poly(methyl methacrylate) films. All boron complexes show aggregation-induced emission and reversible mechanofluorochromism. The optical properties of these dyes and their solid state luminescence can be tuned by substitution pattern, i. e., the substituents at the naphthyridine unit. Exchange of CH3- for CF3-groups does not only increase the intramolecular charge transfer character, but also provides a crystallization-induced emission enhancement.
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Affiliation(s)
- Mykhaylo A Potopnyk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Akademika Kuharya Str. 5, 02000, Kyiv, Ukraine
| | - Justyna Mech-Piskorz
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Gonzalo Angulo
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Magdalena Ceborska
- Faculty of Mathematics and Natural Sciences, Cardinal Stefan Wyszynski University in Warsaw, K. Woycickiego 1/3, 01-938, Warsaw, Poland
| | - Roman Luboradzki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Elina Andresen
- Division Biophotonics, Bundesanstalt für Materilaforschung und -prüfung (BAM), Department 1, Richard-Willstätter-Straβe 11, 12489, Berlin, Germany
| | - Arkadiusz Gajek
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Agnieszka Wisniewska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Ute Resch-Genger
- Division Biophotonics, Bundesanstalt für Materilaforschung und -prüfung (BAM), Department 1, Richard-Willstätter-Straβe 11, 12489, Berlin, Germany
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6
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Kim DS, Kim Y, Lee D, Lee Y. Design of 2-Pyridone Fluorophores for Brighter Emissions at Longer Wavelengths. Chemistry 2024:e202303458. [PMID: 38221142 DOI: 10.1002/chem.202303458] [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: 10/20/2023] [Revised: 12/18/2023] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
The recent discovery of blue fluorophores with high quantum yields based on pyridone structures inspired the development of new low-molecular-weight fluorophores with bright emissions at tunable wavelengths, which are highly attractive for various applications. In this study, we propose a rational design strategy for 2-pyridone-based fluorophores with bright emissions at long wavelengths. With a detailed understanding of the positional substitution effects on each carbon atom of the 2-pyridone core, we developed a bright blue fluorophore (λabs =377 nm; λem =433 nm; ϵ=13,200 M-1 cm-1 ; ϕF =88 %) through C3 -aryl and C4 -ester substitutions followed by cyclization. Furthermore, by applying the intramolecular charge transfer (ICT) principle, we invented a bright green fluorophore through C3 - and C4 -diester and C6 -aryl substitutions. The ICT fluorophore based on the pyridone structure shows large molar absorptivity (ϵ=20,100 M-1 cm-1 ), longer emission wavelength (λem =539 nm), high emission quantum yield (ϕF =74 %), and large Stokes shift (Δv=5720 cm-1 ), which are comparable to those of practical fluorescent probes.
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Affiliation(s)
- Dong Sun Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Younghun Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Dongwhan Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yan Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, Republic of Korea
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7
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He J, Chang X, Zou C, Yu Y, Han S, Wu C, Ou S, Lu W, Li K. Tunable Yellow to Near-Infrared Fluorescent Boron-Amino-Chelating Complexes with Stokes Shifts >100 nm. J Org Chem 2023; 88:14836-14841. [PMID: 37779438 DOI: 10.1021/acs.joc.3c01818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
A series of diphenylboron-chelating N-substituent 8-aminoquinoline, 5-aminoquinoxaline, and 1-aminophenazine were prepared. They exhibit lowest energy absorption peaks of 444-766 nm, emission peaks of 563-820 nm, and quantum yields of up to 46.5%. Electrochemical and theoretical studies indicate that the N-substituent mainly determines the HOMO and the framework determines the LUMO, thus allowing for a wide-tuning of absorptions/emissions. Intramolecular charge transfer transition leads to large Stokes shifts of up to 166 nm. One selected compound showed satisfactory cytocompatibility and cytoplasm-targeting cell imaging ability.
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Affiliation(s)
- Jiang He
- Colleges of Materials Sciences and Engineering, Shenzhen University, Shenzhen 518055, P. R. China
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Xiaoyong Chang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Chao Zou
- Functional Coordination Material Group-Frontier Research Center, Songshan Lake Materials Laboratory, Dongguan 523808, P. R. China
| | - Yanqin Yu
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, P. R. China
| | - Shuang Han
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, P. R. China
| | - Cuifang Wu
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, P. R. China
| | - Sha Ou
- School of Biology and Engineering (School of Health Medicine Modern Industry), Guizhou Medical University, Guiyang 550025, P. R. China
| | - Wei Lu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Kai Li
- Colleges of Materials Sciences and Engineering, Shenzhen University, Shenzhen 518055, P. R. China
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8
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Beghennou A, Gontard G, Dossmann H, Passador K, Thorimbert S, Corcé V, Botuha C. 1,6-Naphthyridin-7(6 H)-ones: synthesis and optical properties. Org Biomol Chem 2023; 21:2976-2982. [PMID: 36939308 DOI: 10.1039/d3ob00081h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Efficient synthesis of original 1,6-naphthyridin-7(6H)-ones and their optical properties are described. Their powerful fluorescence properties including dual fluorescence, solvatochromism, acidochromism, large Stokes shifts and high quantum yields, suitable for biological applications or as luminescent devices in materials science, are evidenced.
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Affiliation(s)
- Anissa Beghennou
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Geoffrey Gontard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Héloïse Dossmann
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Kévin Passador
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Serge Thorimbert
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Vincent Corcé
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
| | - Candice Botuha
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005 Paris, France.
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9
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Weiser J, Cui J, Dewhurst RD, Braunschweig H, Engels B, Fantuzzi F. Structure and bonding of proximity-enforced main-group dimers stabilized by a rigid naphthyridine diimine ligand. J Comput Chem 2023; 44:456-467. [PMID: 36054757 DOI: 10.1002/jcc.26994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 12/31/2022]
Abstract
The development of ligands capable of effectively stabilizing highly reactive main-group species has led to the experimental realization of a variety of systems with fascinating properties. In this work, we computationally investigate the electronic, structural, energetic, and bonding features of proximity-enforced group 13-15 homodimers stabilized by a rigid expanded pincer ligand based on the 1,8-naphthyridine (napy) core. We show that the redox-active naphthyridine diimine (NDI) ligand enables a wide variety of structural motifs and element-element interaction modes, the latter ranging from isolated, element-centered lone pairs (e.g., E = Si, Ge) to cases where through-space π bonds (E = Pb), element-element multiple bonds (E = P, As) and biradical ground states (E = N) are observed. Our results hint at the feasibility of NDI-E2 species as viable synthetic targets, highlighting the versatility and potential applications of napy-based ligands in main-group chemistry.
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Affiliation(s)
- Jonas Weiser
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,Institute for Physical and Theoretical Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Jingjing Cui
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, People's Republic of China
| | - Rian D Dewhurst
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Holger Braunschweig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Bernd Engels
- Institute for Physical and Theoretical Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Felipe Fantuzzi
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Würzburg, Germany.,School of Chemistry and Forensic Science, University of Kent, Canterbury, UK
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10
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Wang W, Tong S, Wang Q, Ao Y, Wang D, Zhu J. Thiazole Boron Difluoride Dyes with Large Stokes Shift, Solid State Emission and Room-Temperature Phosphorescence. Chemistry 2022; 28:e202202507. [PMID: 35994377 PMCID: PMC9825895 DOI: 10.1002/chem.202202507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Indexed: 01/11/2023]
Abstract
The small Stokes shift and weak emission in the solid state are two main shortcomings associated with the boron-dipyrromethene (BODIPY) family of dyes. This study presents the design, synthesis and luminescent properties of boron difluoro complexes of 2-aryl-5-alkylamino-4-alkylaminocarbonylthiazoles. These dyes display Stokes shifts (Δλ, 77-101 nm) with quantum yields (ϕFL ) up to 64.9 and 34.7 % in toluene solution and in solid state, respectively. Some of these compounds exhibit dual fluorescence and room-temperature phosphorescence (RTP) emission properties with modulable phosphorescence quantum yields (ϕPL ) and lifetime (τp up to 251 μs). The presence of intramolecular H-bonds and negligible π-π stacking revealed by X-ray crystal structure might account for the observed large Stokes shift and significant solid-state emission of these fluorophores, while the enhanced spin-orbit coupling (SOC) of iodine and the self-assembly driven by halogen bonding, π-π and C-H… π interactions could be responsible for the observed RTP of iodine containing phosphors.
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Affiliation(s)
- Wei Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Shuo Tong
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry andChemical BiologyDepartment of ChemistryTsinghua UniversityBeijing100084P. R. China
| | - Qi‐Qiang Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yu‐Fei Ao
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - De‐Xian Wang
- Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190P. R. China,University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN)Institute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH53041015LausanneSwitzerland
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11
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Asymmetric Core‐Expanded BOPYOs: Facile Synthesis and Optical Properties. Chemistry 2022; 28:e202201372. [DOI: 10.1002/chem.202201372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Indexed: 12/25/2022]
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12
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Nakano T, Fujikawa S. Aryl/Heteroaryl Substituted Boron-Difluoride Complexes Bearing 2-(Isoquinol-1-yl)pyrrole Ligands Exhibiting High Luminescence Efficiency with a Large Stokes Shift. J Org Chem 2022; 87:11708-11721. [PMID: 35969831 DOI: 10.1021/acs.joc.2c01343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 2-(isoquinol-1-yl)pyrrole-boron complexes possessing (hetero)aryl substituents on the pyrrole and/or isoquinoline moiety were prepared. These compounds exhibited the fluorescence emission character in both solution and solid state. In most cases, the large Stokes shift and high fluorescence quantum yield in the solution were compatible. Furthermore, the structural diversity allowed the precise tuning of emitting colors from light blue to red with strong emission intensity. The present paper describes their comprehensive optical characteristics dependent on the type and position of the substituted aryl groups by the experimental and computational studies.
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Affiliation(s)
- Takeo Nakano
- Research Center for Negative Emissions Technologies (K-NETs), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shigenori Fujikawa
- Research Center for Negative Emissions Technologies (K-NETs), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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13
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Fluorinated N-quinoxaline-based boron complexes: Synthesis, photophysical properties, and selective DNA/BSA biointeraction. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Shelar DS, Malankar GS, M. M, Patra M, Butcher RJ, Manjare ST. Selective detection of hypochlorous acid in living cervical cancer cells with an organoselenium-based BOPPY probe. NEW J CHEM 2022. [DOI: 10.1039/d2nj02956a] [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
The synthesis and crystal structure of the first selenium-containing BOPPY probe. The probe is selective for exogenous and endogenous HOCl detection in HeLa cells with a “turn-on” fluorescence response.
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Affiliation(s)
- Divyesh S. Shelar
- Department of Chemistry, University of Mumbai, Mumbai, 400098, India
| | - Gauri S. Malankar
- Department of Chemistry, University of Mumbai, Mumbai, 400098, India
| | - Manikandan M.
- Department of Chemical Science, Tata Institute of Fundamental Research, Mumbai, 400005, India
| | - Malay Patra
- Department of Chemical Science, Tata Institute of Fundamental Research, Mumbai, 400005, India
| | | | - Sudesh T. Manjare
- Department of Chemistry, University of Mumbai, Mumbai, 400098, India
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15
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Cui J, Dietz M, Härterich M, Fantuzzi F, Lu W, Dewhurst RD, Braunschweig H. Diphosphino-Functionalized 1,8-Naphthyridines: a Multifaceted Ligand Platform for Boranes and Diboranes. Chemistry 2021; 27:15751-15756. [PMID: 34545966 PMCID: PMC9292315 DOI: 10.1002/chem.202102721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Indexed: 12/25/2022]
Abstract
A 1,8-naphthyridine diphosphine (NDP) reacts with boron-containing Lewis acids to generate complexes featuring a number of different naphthyridine bonding modes. When exposed to diborane B2 Br4 , NDP underwent self-deprotonation to afford [NDP-B2 Br3 ]Br, an unsymmetrical diborane comprised of four fused rings. The reaction of two equivalents of monoborane BBr3 and NDP in a non-polar solvent provided the simple phosphine-borane adduct [NDP(BBr3 )2 ], which then underwent intramolecular halide abstraction to furnish the salt [NDP-BBr2 ][BBr4 ], featuring a different coordination mode from that of [NDP-B2 Br3 ]Br. Direct deprotonation of NDP by KHMDS or PhCH2 K generates mono- and dipotassium reagents, respectively. The monopotassium reagent reacts with one or half an equivalent of B2 (NMe2 )2 Cl2 to afford NDP-based diboranes with three or four amino substituents.
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Affiliation(s)
- Jingjing Cui
- School of Chemistry and Environmental EngineeringWuhan Institute of TechnologyWuhan430205P. R. China
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Maximilian Dietz
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Marcel Härterich
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Felipe Fantuzzi
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Physical and Theoretical ChemistryJulius-Maximilians-Universität WürzburgEmil-Fischer-Str. 4297074WürzburgGermany
| | - Wei Lu
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Rian D. Dewhurst
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
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16
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Santos EM, Sheng W, Esmatpour Salmani R, Tahmasebi Nick S, Ghanbarpour A, Gholami H, Vasileiou C, Geiger JH, Borhan B. Design of Large Stokes Shift Fluorescent Proteins Based on Excited State Proton Transfer of an Engineered Photobase. J Am Chem Soc 2021; 143:15091-15102. [PMID: 34516091 DOI: 10.1021/jacs.1c05039] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The incredible potential for fluorescent proteins to revolutionize biology has inspired the development of a variety of design strategies to address an equally broad range of photophysical characteristics, depending on potential applications. Of these, fluorescent proteins that simultaneously exhibit high quantum yield, red-shifted emission, and wide separation between excitation and emission wavelengths (Large Stokes Shift, LSS) are rare. The pursuit of LSS systems has led to the formation of a complex, obtained from the marriage of a rationally engineered protein (human cellular retinol binding protein II, hCRBPII) and different fluorogenic molecules, capable of supporting photobase activity. The large increase in basicity upon photoexcitation leads to protonation of the fluorophore in the excited state, dramatically red-shifting its emission, leading to an LSS protein/fluorophore complex. Essential for selective photobase activity is the intimate involvement of the target protein structure and sequence that enables Excited State Proton Transfer (ESPT). The potential power and usefulness of the strategy was demonstrated in live cell imaging of human cell lines.
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Affiliation(s)
- Elizabeth M Santos
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Wei Sheng
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | | | - Setare Tahmasebi Nick
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Alireza Ghanbarpour
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Hadi Gholami
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Chrysoula Vasileiou
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - James H Geiger
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
| | - Babak Borhan
- Michigan State University, Department of Chemistry, East Lansing, Michigan 48824, United States
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17
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Xing J, Jia J. Reversible mechanofluorochromic properties of phenothiazine-based D-A-D′ aza-N,O-chelated boron difluoride complexes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Nakano T, Sumida A, Naka K. Synthesis and Characterization of Boron Difluoride Complexes Bearing π-Expanded Pyridine Ligands as Organic Fluorochromes. J Org Chem 2021; 86:5690-5701. [DOI: 10.1021/acs.joc.1c00201] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Takeo Nakano
- Material Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Akifumi Sumida
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Material Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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19
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Nakano T, Sumida A, Naka K. 2‐(Quinol‐8‐yl)pyrrole‐Boron Difluoride Complexes, Simple and Tractable Structures Exhibiting Red Emission. ChemistrySelect 2021. [DOI: 10.1002/slct.202004444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Takeo Nakano
- Material Innovation Lab Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Akifumi Sumida
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Kensuke Naka
- Material Innovation Lab Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
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20
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Dutta A, Mahapatra M, Deb M, Ghosh NN, Chattopadhyay PK, Singha NR. Nonconjugated Biocompatible Macromolecular Luminogens for Sensing and Removals of Fe(III) and Cu(II): DFT Studies on Selective Coordination(s) and On-Off Sensing. Macromol Rapid Commun 2020; 42:e2000522. [PMID: 33210389 DOI: 10.1002/marc.202000522] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/11/2020] [Indexed: 12/16/2022]
Abstract
This work reports the design and synthesis of two nonaromatic biocompatible macromolecular luminogens, i.e., 2-(dimethylamino)ethyl methacrylate-co-2-(dimethylamino)ethyl 3-(N-(methylol)acrylamido)-2-methylpropanoate-co-N-(methylol)acrylamide/DMAEMA-co-DMAENMAMP-co-NMA (P1) and methacrylic acid-co-3-(N-(methylol)acrylamido)-2-methylpropanoic acid-co-N-(methylol)acrylamide/MEA-co-NMAMPA-co-NMA (P2), prepared through in situ anchored acrylamido-ester/DMAENMAMP and acrylamido-acid/NMAMPA third comonomers, respectively, in a facile polymerization of two non-luminous monomers in water medium to circumvent the drawbacks related to aggregation-caused quenching of aromatic luminogens. The structures of P1/P2, in situ anchored comonomers, fluorophores, N-branching associated n-π* interactions, and hydrogen bonding assisted aggregation-enhanced emissions are comprehended by nuclear magnetic resonance, Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible, thermogravimetric analysis (TGA), dynamic light scattering (DLS), transmission electron microscopy (TEM), fluorescence lifetime, and fluorescence imaging. P1 and P2 are appropriate for sensitive detections/exclusions of Fe(III)/Cu(II) and cell-imaging. The intrinsic fluorescence, on-off sensing, selective coordinations of Fe(III) and Cu(II) with fluorophores, emission quenching mechanisms, and removals of Fe(III) and Cu(II) are investigated by DFT/NTO analyses of P1/P2 and Fe(III)-P1 and Cu(II)-P2 complexes, XPS, and isotherms and kinetics parameters. The excellent biocompatibilities, comparable limit of detections, i.e., 1.70 × 10-7 and 1.59 × 10-7 [m], and higher adsorption capacities, i.e., 77.25 and 154.13 mg g-1 , at low ppm; 303 K; and pH = 7 compel P1/P2 to be acceptable for multipurpose applications.
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Affiliation(s)
- Arnab Dutta
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Manas Mahapatra
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Mousumi Deb
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Narendra Nath Ghosh
- Department of Chemistry, University of Gour Banga, Mokdumpur, Malda, West Bengal, 732103, India
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
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21
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Maeda C, Nomoto S, Takaishi K, Ema T. Aggregation-Induced Circularly Polarized Luminescence from Boron Complexes with a Carbazolyl Schiff Base. Chemistry 2020; 26:13016-13021. [PMID: 32297393 DOI: 10.1002/chem.202001463] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Indexed: 12/21/2022]
Abstract
A variety of carbazolyl-appended Schiff bases were readily synthesized from 1-formylcarbazoles and aniline derivatives. Boron complexation of the resulting ligands allowed for facile preparation of new carbazole-based BODIPY analogues showing solid-state fluorescence. Furthermore, some dyes were converted into chiral compounds through the Et2 AlCl-mediated incorporation of a binaphthyl unit. The chiral dyes showed aggregation-induced fluorescence and circularly polarized luminescence (CPL) with the ΦF and glum of up to 0.22 and -3.5×10-3 , respectively, in the solid state. The solid-state fluorescence and CPL were well characterized by the crystal packing analyses and DFT calculations.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Shuichi Nomoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama, 700-8530, Japan
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22
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Chaves OA, Calheiro TP, Netto-Ferreira JC, de Oliveira MC, Franceschini SZ, de Salles CMC, Zanatta N, Frizzo CP, Iglesias BA, Bonacorso HG. Biological assays of BF2-naphthyridine compounds: Tyrosinase and acetylcholinesterase activity, CT-DNA and HSA binding property evaluations. Int J Biol Macromol 2020; 160:1114-1129. [DOI: 10.1016/j.ijbiomac.2020.05.162] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 01/30/2023]
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23
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Mahapatra M, Dutta A, Mitra M, Karmakar M, Ghosh NN, Chattopadhyay PK, Singha NR. Intrinsically Fluorescent Biocompatible Terpolymers for Detection and Removal of Bi(III) and Cell Imaging. ACS APPLIED BIO MATERIALS 2020; 3:6155-6166. [DOI: 10.1021/acsabm.0c00718] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Manas Mahapatra
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
| | - Arnab Dutta
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
| | - Madhushree Mitra
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
| | - Mrinmoy Karmakar
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
| | - Narendra Nath Ghosh
- Department of Chemistry, University of Gour Banga, Mokdumpur 732103, West Bengal, India
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata 700106, West Bengal, India
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24
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Kumar R, Aggarwal H, Srivastava A. Of Twists and Curves: Electronics, Photophysics, and Upcoming Applications of Non-Planar Conjugated Organic Molecules. Chemistry 2020; 26:10653-10675. [PMID: 32118325 DOI: 10.1002/chem.201905071] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/02/2020] [Indexed: 01/02/2023]
Abstract
Non-planar conjugated organic molecules (NPCOMs) contain π-conjugation across their length and also exhibit asymmetry in their conformation. In other words, certain molecular fragments in NPCOMs are either twisted or curved out of planarity. This conformational asymmetry in NPCOMs leads to non-uniform charge-distribution across the molecule, with important photophysical and electronic consequences such as altered thermodynamic stability, chemical reactivity, as well as materials properties. Majorly, NPCOMs can be classified as having either Fused or Rotatable architectures. NPCOMs have been the focus of significant scientific attention in the recent past due to their exciting photophysical behavior that includes intramolecular charge-transfer (ICT), thermally activated delayed fluorescence (TADF) and long-lived charge-separated states. In addition, they also have many useful materials characteristics such as biradical character, semi-conductivity, dynamic conformations, and mechanochromism. As a result, rational design of NPCOMs and mapping their structure-property correlations has become imperative. Researchers have executed conformational changes in NPCOMs through a variety of external stimuli such as pH, temperature, anions-cations, solvent, electric potential, and mechanical force in order to tailor their photophysical, optoelectronic and magnetic properties. Converging to these points, this review highlights the lucrative electronic features, photophysical traits and upcoming applications of NPCOMs by a selective survey of the recent scientific literature.
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Affiliation(s)
- Rajesh Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhauri, Bhopal Bypass Road, Bhopal, 462066, India
| | - Himanshu Aggarwal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhauri, Bhopal Bypass Road, Bhopal, 462066, India
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhauri, Bhopal Bypass Road, Bhopal, 462066, India
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25
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Potopnyk MA, Volyniuk D, Luboradzki R, Ceborska M, Hladka I, Danyliv Y, Grazulevicius JV. Organolithium-Mediated Postfunctionalization of Thiazolo[3,2- c][1,3,5,2]oxadiazaborinine Fluorescent Dyes. J Org Chem 2020; 85:6060-6072. [PMID: 32271020 PMCID: PMC7590982 DOI: 10.1021/acs.joc.0c00552] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An effective method for transition-metal-free postfunctionalization of thiazolo[3,2-c][1,3,5,2]oxadiazaborinine dyes via direct lithiation of the 1,3-thiazole ring was developed. The reaction allows valuable regioselective C-H modification of these N,O-chelated organoboron chromophores incorporating different groups, including C-, Hal-, Si-, S-, Se-, and Sn-substituents. As a result, a library of novel fluorescent 1,3-thiazole-based organoboron complexes has been synthesized and characterized. The influence of the donor/acceptor strength of the substituent E on the photophysical properties has been established. The compound with a bulky lipophilic substituent (SnBu3) exhibits a relatively high solid-state photoluminescence quantum yield of 44%.
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Affiliation(s)
- Mykhaylo A Potopnyk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Barsausko 59, 51423 Kaunas, Lithuania
| | - Roman Luboradzki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Magdalena Ceborska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Iryna Hladka
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Barsausko 59, 51423 Kaunas, Lithuania
| | - Yan Danyliv
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Barsausko 59, 51423 Kaunas, Lithuania
| | - Juozas V Grazulevicius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Barsausko 59, 51423 Kaunas, Lithuania
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26
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Más-Montoya M, Montenegro MF, Espinosa Ferao A, Tárraga A, Rodríguez-López JN, Curiel D. Rigid π-Extended Boron Difluoride Complex with Mega-Stokes Shift for Bioimaging. Org Lett 2020; 22:3356-3360. [PMID: 32285673 DOI: 10.1021/acs.orglett.0c00782] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The rational design of a rigid π-extended ligand, suitable for the formation of four-coordinate boron complexes, has led to the synthesis of the fused hexacyclic structure of carbazolo[2,1-c]phenanthridine. The photophysical characterization of the novel fluorophore revealed a significant Stokes shift whose intramolecular charge transfer origin has been corroborated by computational calculations. The usefulness of the reported N,N-difluoroboryl complex as fluorescent probe with large Stokes shift has been demonstrated for cancer cells imaging.
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Affiliation(s)
- Miriam Más-Montoya
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
| | - María F Montenegro
- Department of Biochemistry and Molecular Biology A, Faculty of Biology, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
| | - Arturo Espinosa Ferao
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
| | - Alberto Tárraga
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
| | - José Neptuno Rodríguez-López
- Department of Biochemistry and Molecular Biology A, Faculty of Biology, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
| | - David Curiel
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Campus of Espinardo, Murcia 30100, Spain
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27
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Yamada S, Nishizawa A, Morita M, Hosokai T, Okabayashi Y, Agou T, Hosoya T, Kubota T, Konno T. Synthesis and characterization of bent fluorine-containing donor-π-acceptor molecules as intense luminophores with large Stokes shifts. Org Biomol Chem 2019; 17:6911-6919. [PMID: 31271184 DOI: 10.1039/c9ob01300h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we prepared novel bent fluorine-containing donor-π-acceptor (D-π-A) molecules from commercially available octafluorocyclopentene using a facile two-step procedure, revealing that the above molecules absorb UV-light and exhibit yellow photoluminescence (PL) with high PL efficiencies (ΦPL) in solution. The corresponding Stokes shifts exceeded 10 000 cm-1, and the maximum PL wavelength (λPL) strongly depended on solvent polarity or intermolecular interactions in the solid state. On the basis of a Lippert-Mataga plot, PL was confidently assigned to radiative relaxation from an intramolecular charge-transfer excited state. Moreover, the synthesized luminophores showed intense PL even in the crystalline state and exhibited alkoxy chain length-dependent PL behavior (e.g., high ΦPL, λPL = 486-540 nm).
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Affiliation(s)
- Shigeyuki Yamada
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Akito Nishizawa
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Masato Morita
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Takuya Hosokai
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba 305-8560, Japan
| | - Yusuke Okabayashi
- National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba 305-8560, Japan
| | - Tomohiro Agou
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan
| | - Takaaki Hosoya
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan
| | - Toshio Kubota
- Department of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Naka-narusawa, Hitachi, Ibaraki 316-8511, Japan
| | - Tsutomu Konno
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
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28
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Light Harvesting and Optical-Electronic Properties of Two Quercitin and Rutin Natural Dyes. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9122567] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The photovoltaic properties of two dyes (quercitin (Q) and rutin (R)) were experimentally investigated. The results showed that Q had excellent photoelectric properties with J s c of 5.480 mA·cm−2, V o c of 0.582 V, η of 2.151% larger than R with J s c of 1.826 mA·cm−2, V o c of 0.547 V, and η of 0.713%. For a better understanding of the photoelectric properties of two molecules and illustrating why the performances of Q is better than R from the micro-level, the UV-VIs spectrum, Fourier transforms infrared (FT-IR) spectrum, and cyclic voltage current characteristics were experimentally investigated. What is more, density functional theory (DFT) and time dependent density functional theory (TD-DFT) have been implemented in theoretical calculation. Based on the calculated results, frontier molecular orbitals (FMOs), charge differential density (CDD), infrared vibration, first hyperpolarizability, projected density orbital analysis (PDOS), electrostatic potential (ESP), and natural bond orbital (NBO) were analyzed. Hole/electron reorganization energies ( λ h / λ e ), light harvesting efficiency (LHE), fluorescent lifetime (τ), absorption peak, and the vertical dipole moment ( μ n o r m a l ) were calculated, and the shift of conduction band edge of a semiconductor (ΔECB) has been analyzed, which has a close relationship with J s c and V o c . The results demonstrated that, due to the higher LHE, τ, μ n o r m a l , and red-shifted absorption peak, Q has better photoelectric properties than R as a promising sensitizer.
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29
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Potopnyk MA, Volyniuk D, Luboradzki R, Ceborska M, Hladka I, Danyliv Y, Gražulevičius JV. Application of the Suzuki–Miyaura Reaction for the Postfunctionalization of the Benzo[4,5]thiazolo[3,2-c][1,3,5,2]oxadiazaborinine Core: An Approach toward Fluorescent Dyes. J Org Chem 2019; 84:5614-5626. [DOI: 10.1021/acs.joc.9b00566] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mykhaylo A. Potopnyk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Roman Luboradzki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Magdalena Ceborska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Iryna Hladka
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Yan Danyliv
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Juozas Vidas Gražulevičius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
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30
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Non-traditional intrinsic luminescence: inexplicable blue fluorescence observed for dendrimers, macromolecules and small molecular structures lacking traditional/conventional luminophores. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.09.004] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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Dipold J, Romero EE, Donnelly J, Calheiro TP, Bonacorso HG, Iglesias BA, Siqueira JP, Hernandez FE, Boni LD, Mendonca CR. Two-photon absorption properties of BODIPY-like compounds based on BF2–naphthyridine complexes. Phys Chem Chem Phys 2019; 21:6662-6671. [DOI: 10.1039/c8cp06580b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High two-photon absorption cross-sections of BODIPY-like compounds were obtained for simple structures.
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Affiliation(s)
- Jessica Dipold
- Instituto de Física de São Carlos, Universidade de São Paulo
- 13560-970 São Carlos
- Brazil
| | | | - Julie Donnelly
- Department of Chemistry, University of Central Florida
- Orlando
- USA
| | - Tainara P. Calheiro
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Bernardo A. Iglesias
- Departamento de Química, Laboratório de Bioinorgânica e Materiais Porfirínicos, Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Jonathas P. Siqueira
- Instituto de Física de São Carlos, Universidade de São Paulo
- 13560-970 São Carlos
- Brazil
| | - Florencio E. Hernandez
- Department of Chemistry, University of Central Florida
- Orlando
- USA
- CREOL/The College of Optics and Photonics, University of Central Florida
- Orlando
| | - Leonardo De Boni
- Instituto de Física de São Carlos, Universidade de São Paulo
- 13560-970 São Carlos
- Brazil
| | - Cleber R. Mendonca
- Instituto de Física de São Carlos, Universidade de São Paulo
- 13560-970 São Carlos
- Brazil
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32
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Potopnyk MA, Volyniuk D, Ceborska M, Cmoch P, Hladka I, Danyliv Y, Gražulevičius JV. Benzo[4,5]thiazolo[3,2- c][1,3,5,2]oxadiazaborinines: Synthesis, Structural, and Photophysical Properties. J Org Chem 2018; 83:12129-12142. [PMID: 30173505 DOI: 10.1021/acs.joc.8b02098] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A family of highly emissive benzo[4,5]thiazolo[3,2- c][1,3,5,2]oxadiazaborinines, conjugated with the donor 4-dimethylaminophenyl group, was designed and synthesized. Their photophysical, both in solution and in the solid state, and structural properties were investigated. The influence of donor and acceptor substituents (R) in the benzothiazole unit on photophysical properties of complexes was found out. The tetrafluorobenzothiazole analogue exhibits nonbonded nuclear spin-spin coupling between fluorines from the BF2 group and α-fluorine atom at the benzene ring. Additionally, this boron complex demonstrates a comparatively high solid-state fluorescence quantum yield (Φ = 0.34).
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Affiliation(s)
- Mykhaylo A Potopnyk
- Institute of Organic Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology , Kaunas University of Technology , Radvilenu pl. 19 , Kaunas LT-50254 , Lithuania
| | - Magdalena Ceborska
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , Warsaw 01-224 , Poland
| | - Iryna Hladka
- Department of Polymer Chemistry and Technology , Kaunas University of Technology , Radvilenu pl. 19 , Kaunas LT-50254 , Lithuania
| | - Yan Danyliv
- Department of Polymer Chemistry and Technology , Kaunas University of Technology , Radvilenu pl. 19 , Kaunas LT-50254 , Lithuania
| | - Juozas Vidas Gražulevičius
- Department of Polymer Chemistry and Technology , Kaunas University of Technology , Radvilenu pl. 19 , Kaunas LT-50254 , Lithuania
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33
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Zhang K, Zheng H, Hua C, Xin M, Gao J, Li Y. Novel fluorescent N,O-chelated fluorine-boron benzamide complexes containing thiadiazoles: Synthesis and fluorescence characteristics. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.08.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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34
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Yu C, Huang Z, Wang X, Miao W, Wu Q, Wong WY, Hao E, Xiao Y, Jiao L. A Family of Highly Fluorescent and Unsymmetric Bis(BF2) Chromophore Containing Both Pyrrole and N-Heteroarene Derivatives: BOPPY. Org Lett 2018; 20:4462-4466. [DOI: 10.1021/acs.orglett.8b01752] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Changjiang Yu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Zhenlong Huang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Xinru Wang
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Wei Miao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Qinghua Wu
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
| | - Erhong Hao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
| | - Yi Xiao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Lijuan Jiao
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China
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35
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Adak A, Panda T, Raveendran A, Bejoymohandas KS, Asha KS, Prakasham AP, Mukhopadhyay B, Panda MK. Distinct Mechanoresponsive Luminescence, Thermochromism, Vapochromism, and Chlorine Gas Sensing by a Solid-State Organic Emitter. ACS OMEGA 2018; 3:5291-5300. [PMID: 31458738 PMCID: PMC6641972 DOI: 10.1021/acsomega.8b00250] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 05/03/2018] [Indexed: 06/10/2023]
Abstract
In this study, we report a synthetically simple donor-acceptor (D-A)-type organic solid-state emitter 1 that displays unique fluorescence switching under mechanical stimuli. Orange and yellow emissive crystals of 1 (1O, 1Y) exhibit an unusual "back and forth" fluorescence response to mechanical force. Gentle crushing (mild pressure) of the orange or yellow emissive crystal results in hypsochromic shift to cyan emissive fragments (λem = 498-501 nm) with a large wavelength shift Δλem = -71 to -96 nm, while further grinding results in bathochromic swing to green emissive powder λem = 540-550 nm, Δλem = +40 to 58 nm. Single-crystal X-ray diffraction study reveals that molecules are packed by weak interactions, such as C-H···π, C-H···N, and C-H···F, which facilitate intermolecular charge transfer in the crystal. With the aid of structural, spectroscopic, and morphological studies, we established the interplay between intermolecular and intramolecular charge-transfer interaction that is responsible for this elusive mechanochromic luminescence. Moreover, we have also demonstrated the application of this organic material for chlorine gas sensing in solid state.
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Affiliation(s)
- Anirban Adak
- Department
of Chemical Science, Indian Institute for
Science and Educational Research Kolkata, Mohanpur 741246, Kolkata, India
| | - Tamas Panda
- New
York University Abu Dhabi, Saadiyat Island, Abu Dhabi, United Arab Emirates, P.O. Box 129188
| | - Anju Raveendran
- Photosciences
& Photonics Section, Chemical Science & Technology Division, CSIR-National Institute for Interdisciplinary Science
& Technology, Thiruvanthapuram 695019, Kerala, India
| | - Kochan Sathyaseelan Bejoymohandas
- Photosciences
& Photonics Section, Chemical Science & Technology Division, CSIR-National Institute for Interdisciplinary Science
& Technology, Thiruvanthapuram 695019, Kerala, India
| | - K. S. Asha
- School
of Chemistry, Indian Institute for Science
and Educational Research, Thiruvanthapuram 695551, Kerala, India
| | - A. P. Prakasham
- Department
of Chemistry, Indian Institute of Technology
Bombay, Mumbai 400076, India
| | - Balaram Mukhopadhyay
- Department
of Chemical Science, Indian Institute for
Science and Educational Research Kolkata, Mohanpur 741246, Kolkata, India
| | - Manas K. Panda
- Photosciences
& Photonics Section, Chemical Science & Technology Division, CSIR-National Institute for Interdisciplinary Science
& Technology, Thiruvanthapuram 695019, Kerala, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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36
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Wang M, Cheng C, Song J, Wang J, Zhou X, Xiang H, Liu J. Multiple Hydrogen Bonds Promoted ESIPT and AIE-active Chiral Salicylaldehyde Hydrazide. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800115] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Man Wang
- College of Chemistry; Sichuan University; Chengdu Sichuan 610041 China
| | - Caiqi Cheng
- State Key Laboratory of Oral Diseases, Department of Orthodontics; West China Hospital of Stomatology, Sichuan University; Chendu, Sichuan 610064 China
- Laboratory of Stem Cell Biology, West China Hospital; Sichuan University; Chengdu Sichuan 610064 China
| | - Jintong Song
- College of Chemistry; Sichuan University; Chengdu Sichuan 610041 China
| | - Jun Wang
- State Key Laboratory of Oral Diseases, Department of Orthodontics; West China Hospital of Stomatology, Sichuan University; Chendu, Sichuan 610064 China
| | - Xiangge Zhou
- College of Chemistry; Sichuan University; Chengdu Sichuan 610041 China
| | - Haifeng Xiang
- College of Chemistry; Sichuan University; Chengdu Sichuan 610041 China
| | - Jin Liu
- Laboratory of Stem Cell Biology, West China Hospital; Sichuan University; Chengdu Sichuan 610064 China
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37
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Ren TB, Xu W, Zhang W, Zhang XX, Wang ZY, Xiang Z, Yuan L, Zhang XB. A General Method To Increase Stokes Shift by Introducing Alternating Vibronic Structures. J Am Chem Soc 2018; 140:7716-7722. [DOI: 10.1021/jacs.8b04404] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Wang Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Wei Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Xing-Xing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Zhi-Yao Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Zhen Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P.R. China
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38
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Potopnyk MA, Lytvyn R, Danyliv Y, Ceborska M, Bezvikonnyi O, Volyniuk D, Gražulevičius JV. N,O π-Conjugated 4-Substituted 1,3-Thiazole BF 2 Complexes: Synthesis and Photophysical Properties. J Org Chem 2018; 83:1095-1105. [PMID: 29300092 DOI: 10.1021/acs.joc.7b02239] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A series of 1,3-thiazole-based organoboron complexes has been designed and synthesized by acylation of 2-amino 4-subsituted 1,3-thiazoles with (4-dimethylamino)benzoyl chloride and the subsequent BF2 complexation reaction. The influence of substituents in position 4 of the thiazole ring on photophysical properties of the complexes has been investigated. Synthesized thiazolo[3,2-c][1,3,5,2]oxadiazaborinines mainly showed intensive fluorescence in solutions. Complex with a 4,5-unsubstituted thiazole unit demonstrated an aggregation induced emission (AIE) effect and a very high fluorescent quantum yield (94%) in the solid state because of the inhibition of π-π/π-n interactions in the molecular packing.
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Affiliation(s)
- Mykhaylo A Potopnyk
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Roman Lytvyn
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-50254 Kaunas, Lithuania.,Department of Organic Chemistry, Ivan Franko National University of Lviv , Kyryla and Mefodia St. 6, 79005 Lviv, Ukraine
| | - Yan Danyliv
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Magdalena Ceborska
- Institute of Physical Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Oleksandr Bezvikonnyi
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
| | - Juozas Vidas Gražulevičius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology , Radvilenu pl. 19, LT-50254 Kaunas, Lithuania
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39
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Multinuclear NMR spectroscopy, photophysical, electrochemical and DNA-binding properties of fluorinated 1,8-naphthyridine-based boron heterocycles. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2017.11.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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40
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Liu X, Li Y, Ren X, Yang Q, Su Y, He L, Song X. Methylated chromenoquinoline dyes: synthesis, optical properties, and application for mitochondrial labeling. Chem Commun (Camb) 2018; 54:1509-1512. [DOI: 10.1039/c7cc08154e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Methylated chromenoquinoline dyes were designed and synthesized, and their photophysical properties were investigated.
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Affiliation(s)
- Xingjiang Liu
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
| | - Ying Li
- State Key Laboratory of Molecular Neuroscience and Institute of Molecular Functional Materials
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Xiaojie Ren
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
| | - Qinwei Yang
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
| | - Yuanan Su
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
| | - Long He
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
| | - Xiangzhi Song
- College of Chemistry & Chemical Engineering
- Central South University
- Changsha
- P. R. China
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41
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Bonacorso HG, Calheiro TP, Iglesias BA, Acunha TV, Franceschini SZ, Ketzer A, Meyer AR, Rodrigues LV, Nogara PA, Rocha JBT, Zanatta N, Martins MAP. 1,1-Difluoro-3-aryl(heteroaryl)-1H-pyrido[1,2-c][1,3,5,2]oxadiazaborinin-9-ium-1-uides: synthesis; structure; and photophysical, electrochemical, and BSA-binding studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj04032f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
New fluorinated pyridine-based boron heterocycles were easily prepared and fully characterized.
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42
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Zhang Z, Zhang Z, Zhang H, Wang Y. 2-(2-Hydroxyphenyl)imidazole-based four-coordinate organoboron compounds with efficient deep blue photoluminescence and electroluminescence. Dalton Trans 2018; 47:127-134. [DOI: 10.1039/c7dt03702c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Four-coordinate organoboron compounds that can realize efficient electroluminescence with a CIE coordinate close to that of standard blue light (0.14, 0.08) have been developed.
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Affiliation(s)
- Zhenyu Zhang
- State Grid Shanxi Electric Power Research Institute
- Taiyuan 030001
- P. R. China
| | - Zuolun Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Hongyu Zhang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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43
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Greiner R, Ziegler DS, Cibu D, Jakowetz AC, Auras F, Bein T, Knochel P. Preparation of Polyfunctional Naphthyridines by Cobalt-Catalyzed Cross-Couplings of Halogenated Naphthyridines with Magnesium and Zinc Organometallics. Org Lett 2017; 19:6384-6387. [PMID: 29152984 PMCID: PMC6400433 DOI: 10.1021/acs.orglett.7b03242] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
![]()
CoCl2 (5%)
catalyzes cross-couplings of various halogenated
naphthyridines with alkyl- and arylmagnesium halides. Also, arylzinc
halides undergo smooth cross-couplings with various naphthyridines
in the presence of CoCl2·2LiCl (5%) and sodium formate
(50%), leading to polyfunctional arylated naphthyridines. Two of these
arylated naphthyridines are highly fluorescent, with quantum efficiencies
reaching 95% and long excited-state lifetimes of up to 12 ns.
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Affiliation(s)
- Robert Greiner
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Dorothée S Ziegler
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Denise Cibu
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Andreas C Jakowetz
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Florian Auras
- Cavendish Laboratory, University of Cambridge , Cambridge CB3 0HE, United Kingdom
| | - Thomas Bein
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 Munich, Germany
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44
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Zhang Q, Wang Q, Sun Y, Zuo L, Fetz V, Hu HY. Superior Fluorogen-Activating Protein Probes Based on 3-Indole–Malachite Green. Org Lett 2017; 19:4496-4499. [DOI: 10.1021/acs.orglett.7b02055] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | | | | | - Limin Zuo
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Verena Fetz
- Department
of Chemical Biology, Helmholtz-Zentrum für Infektionsforschung (HZI), Inhoffenstrasse 7, 38124 Braunschweig, Germany
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45
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Arivazhagan C, Maity A, Bakthavachalam K, Jana A, Panigrahi SK, Suresh E, Das A, Ghosh S. Phenothiazinyl Boranes: A New Class of AIE Luminogens with Mega Stokes Shift, Mechanochromism, and Mechanoluminescence. Chemistry 2017; 23:7046-7051. [DOI: 10.1002/chem.201700187] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Indexed: 11/07/2022]
Affiliation(s)
- C. Arivazhagan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 India
| | - Arunava Maity
- CSIR-Central Salt and Marine Chemicals Research Institute; Bhavnagar 364 002 India
| | - K. Bakthavachalam
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 India
| | - Arijit Jana
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 India
| | - Suraj Kumar Panigrahi
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 India
| | - Eringathodi Suresh
- CSIR-Central Salt and Marine Chemicals Research Institute; Bhavnagar 364 002 India
| | - Amitava Das
- CSIR-Central Salt and Marine Chemicals Research Institute; Bhavnagar 364 002 India
| | - Sundargopal Ghosh
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600 036 India
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46
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Wang B, Wang M, Mikhailovsky A, Wang S, Bazan GC. A Membrane‐Intercalating Conjugated Oligoelectrolyte with High‐Efficiency Photodynamic Antimicrobial Activity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701146] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Alexander Mikhailovsky
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Science Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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47
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Wang B, Wang M, Mikhailovsky A, Wang S, Bazan GC. A Membrane‐Intercalating Conjugated Oligoelectrolyte with High‐Efficiency Photodynamic Antimicrobial Activity. Angew Chem Int Ed Engl 2017; 56:5031-5034. [DOI: 10.1002/anie.201701146] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Ming Wang
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Alexander Mikhailovsky
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Science Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids Department of Chemistry and Biochemistry University of California Santa Barbara CA 93106 USA
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48
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Wang BZ, Zhou JP, Zhou Y, Luo JS, Yang JJ, Chi SM. Crystal structure of N-(7-di-bromo-methyl-5-methyl-1,8-naphthyridin-2-yl)benzamide-pyrrolidine-2,5-dione (1/1). Acta Crystallogr E Crystallogr Commun 2017; 73:1-3. [PMID: 28083121 PMCID: PMC5209757 DOI: 10.1107/s2056989016019034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
The title compound, C17H13Br2N3O·C4H5NO2, is a co-crystal of N-(7-di-bromo-methyl-5-methyl-1,8-naphthyridin-2-yl)benzamide and pyrrolidine-2,5-dione (succinimide). The benzamide mol-ecule exhibits pseudo-mirror symmetry, with an r.m.s. deviation of the non-H atoms of 0.09 Å (except for the two Br atoms). The angle between the least-squares planes of the two mol-ecules is 26.2 (2)°. In the crystal, the two mol-ecules are mutually linked by N-H⋯O and N-H⋯N hydrogen bonds. The packing is consolidated by C-H⋯(O,N) hydrogen bonds and π-π stacking inter-actions.
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Affiliation(s)
- Bang Zhong Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Jun Ping Zhou
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Yong Zhou
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Jian Song Luo
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Jun Jie Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
| | - Shao M.ing Chi
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, People’s Republic of China
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49
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Maeda C, Todaka T, Ueda T, Ema T. Synthesis of carbazole-based BODIPY dimers showing red fluorescence in the solid state. Org Biomol Chem 2017; 15:9283-9287. [DOI: 10.1039/c7ob02419c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Carbazole-based BODIPY dimers 2a–g were synthesized via direct arylation.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Takumi Todaka
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Tomomi Ueda
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Tadashi Ema
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
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50
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Maeda C, Nagahata K, Ema T. Carbazole-based BODIPYs with ethynyl substituents at the boron center: solid-state excimer fluorescence in the VIS/NIR region. Org Biomol Chem 2017; 15:7783-7788. [DOI: 10.1039/c7ob01473b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbazole-based BODIPYs 1–6 with several different substituents at the boron atom site were synthesized.
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Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Keiji Nagahata
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - Tadashi Ema
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
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