1
|
Zhao H, Cheng X. Fluorene Thiophene α-Cyanostilbene Hexacatenar-Generating LCs with Hexagonal Columnar Phases and Gels with Helical Morphologies as Well as a Light-Emitting LC Display. Int J Mol Sci 2023; 24:ijms24119337. [PMID: 37298292 DOI: 10.3390/ijms24119337] [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: 04/30/2023] [Revised: 05/20/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Two series of novel synthesized hexacatenars, O/n and M/n, containing two thiophene-cyanostilbene units interconnected by central fluorene units (fluorenone or dicyanovinyl fluorene) using a donor-acceptor-acceptor-donor (A-D-A-D-A) rigid core, with three alkoxy chains at each end, can self-assemble into hexagonal columnar mesophases with wide liquid crystal (LC) ranges and aggregate into organogels with flowerlike and helical cylinder morphologies, as revealed via POM, DSC, XRD and SEM investigation. Furthermore, these compounds were observed to emit yellow luminescence in both solution and solid states which can be adopted to manufacture a light-emitting liquid crystal display (LE-LCD) by doping with commercially available nematic LC.
Collapse
Affiliation(s)
- Hongmei Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
- School of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Xiaohong Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| |
Collapse
|
2
|
Chen S, Ma T, Du X, Mo M, Wang Z, Cheng X. D-A-D hexacatenar LCs containing bulky N-trialkoxylbenzyl carbazole caps with RGB emissions for full color palette and white LED applications. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
3
|
Amphiphilic benzothiadiazole derivatives: synthesis, self-assembly and applications as light-emitting liquid crystal display and switchable anisotropic scattering device. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
4
|
Krüger R, Larroza A, Fronza MG, Tisoco I, Savegnago L, Reis JS, Back DF, Iglesias BA, Alves D. Bis-triazolylchalcogenium-Functionalized Benzothiadiazole Derivatives as Light-up Sensors for DNA and BSA. J Org Chem 2021; 86:17866-17883. [PMID: 34843245 DOI: 10.1021/acs.joc.1c02153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A range of bis-triazolylchalcogenium-BTD 3 was synthesized by a copper-catalyzed azide-alkyne cycloaddition of azido arylchalcogenides 1 and 4,7-diethynylbenzo[c][1,2,5]thiadiazole 2. Eight new compounds were obtained in moderate to good yields using 1 mol % of copper(II) acetate monohydrate under mild reaction conditions. In addition, the synthesized bis-triazolylchalcogenium-BTD 3a-3h were investigated regarding their photophysical, electrochemical, and biomolecule binding properties in solution. In general, compounds presented strong absorption bands at the 250-450 nm region and cyan to green emission properties. The redox process attributed to the chalcogen atom was observed by electrochemical analysis (CV techniques). In addition, spectroscopic studies by UV-vis, steady-state emission fluorescence, and molecular docking calculations evidenced the ability of each derivative to establish interactions with calf-thymus DNA (CT-DNA) and bovine serum albumin (BSA). The behavior presented for this new class of compounds makes them a promising tool as optical sensors for biomolecules.
Collapse
Affiliation(s)
- Roberta Krüger
- Clean Organic Synthesis Laboratory - LASOL - CCQFA - Federal University of Pelotas - UFPel, CEP, 96010-900 Pelotas, RS, Brazil
| | - Allya Larroza
- Clean Organic Synthesis Laboratory - LASOL - CCQFA - Federal University of Pelotas - UFPel, CEP, 96010-900 Pelotas, RS, Brazil
| | - Mariana G Fronza
- Neurobiotechnology Research Group - GPN, CDTec, Federal University of Pelotas, UFPel, CEP, 96010-900 Pelotas, RS, Brazil
| | - Isadora Tisoco
- Chemistry Department, Bioinorganics and Porphyrinic Materials Laboratory, Federal University of Santa Maria, UFSM, CEP, 97105-900 Santa Maria, RS, Brazil
| | - Lucielli Savegnago
- Neurobiotechnology Research Group - GPN, CDTec, Federal University of Pelotas, UFPel, CEP, 96010-900 Pelotas, RS, Brazil
| | - Joel S Reis
- Institute of Chemistry, Fluminense Federal University, UFF, CEP, 24020-141 Niteroi, RJ, Brazil
| | - Davi F Back
- Chemistry Department, Inorganic Materials Laboratory, Federal University of Santa Maria, UFSM, CEP, 97105-900 Santa Maria, RS, Brazil
| | - Bernardo A Iglesias
- Chemistry Department, Bioinorganics and Porphyrinic Materials Laboratory, Federal University of Santa Maria, UFSM, CEP, 97105-900 Santa Maria, RS, Brazil
| | - Diego Alves
- Clean Organic Synthesis Laboratory - LASOL - CCQFA - Federal University of Pelotas - UFPel, CEP, 96010-900 Pelotas, RS, Brazil
| |
Collapse
|
5
|
Pang Y, Xiao Y, Liu X, Zuo R, Li N, Jiang Z. Synthesis and characterization of α-cyanostilbene-based bent-core hexacatenar mesogens with different central groups. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Kanakala MB, Yelamaggad CV. Exceptional dual fluorescent, excited-state intramolecular proton-transfer (ESIPT) columnar liquid crystals characterized by J-stacking and large Stokes shifts. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115879] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
7
|
Effect of the linkages on the self-assembly and photophysical properties of 4,7-diphenyl-2,1,3-benzothiadiazole-based luminescent polycatenars. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
8
|
|
9
|
Xing W, Xiao Y, Zhao K, Kong T, Cheng X. Control of supramolecular nanoassemblies by tuning the polarities of linkages and solvents. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
10
|
Cheng H, Gao H, Xiao Y, Zhang B, Xing W, Cheng X. Self-assembly, conductivity and chemosensor behavior of biphenylsulfone based Janus polycatenar. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
11
|
Cheng HF, Xing W, Zhang B, Yu J, Cheng XH. Bisphenylsulfone-based polycatenar mesogens via CuAAC click reaction: Self-assembly and their applications in water purification. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
12
|
Zhang B, Xiao Y, Fang H, Gao H, Wang F, Cheng X. Mesogenic D–A fluorophores based on cyanovinyl and benzothiadiazole. NEW J CHEM 2018. [DOI: 10.1039/c8nj02814a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesized cyanovinyl and BTD based fluorophores displayed LC, Gel as well as optical waveguide and chemosensor properties.
Collapse
Affiliation(s)
- Bei Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Yulong Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Haipeng Fang
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Hongfei Gao
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Fuke Wang
- Department of Sports Medicine
- First Affiliated Hospital of Kunming Medical University
- China
| | - Xiaohong Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| |
Collapse
|
13
|
Pathak SK, Nath S, De J, Pal SK, Achalkumar AS. Contrasting effects of heterocycle substitution and branched tails in the arms of star-shaped molecules. NEW J CHEM 2017. [DOI: 10.1039/c7nj00911a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, heterocycle based star-shaped liquid crystalline tris(N-salicylideneaniline)s (TSANs) are reported.
Collapse
Affiliation(s)
- Suraj Kumar Pathak
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Subrata Nath
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Joydip De
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Manauli 140306
- India
| | - Santanu Kumar Pal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Manauli 140306
- India
| | | |
Collapse
|
14
|
Cheng H, Zhang R, Li T, Peng X, Xia M, Xiao Y, Cheng X. Synthesis and self-assembly of bent core polycatenar mesogens with binding selectivity to Hg2+. NEW J CHEM 2017. [DOI: 10.1039/c7nj00225d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Target compounds can self-assemble into CubI/Pm3̄nLC phases and organogels, simultaneously; these compounds have binding selectivity to Hg2+.
Collapse
Affiliation(s)
- Huifang Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Ruilin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Taihao Li
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Xiongwei Peng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Meng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Yulong Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| | - Xiaohong Cheng
- Key Laboratory of Medicinal Chemistry for Natural Resources
- Chemistry Department
- Yunnan University
- Kunming
- P. R. China
| |
Collapse
|
15
|
Pathak SK, Pradhan B, Gupta M, Pal SK, Sudhakar AA. Liquid-Crystalline Star-Shaped Supergelator Exhibiting Aggregation-Induced Blue Light Emission. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9301-9312. [PMID: 27529734 DOI: 10.1021/acs.langmuir.6b02509] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A family of closely related star-shaped stilbene-based molecules containing an amide linkage are synthesized, and their self-assembly in liquid-crystalline and gel states was investigated. The number and position of the peripheral alkyl tails were systematically varied to understand the structure-property relation. Interestingly, one of the molecules with seven peripheral chains was bimesomorphic, exhibiting columnar hexagonal and columnar rectangular phases, whereas the rest of them stabilized the room-temperature columnar hexagonal phase. The self-assembly of these molecules in liquid-crystalline and organogel states is extremely sensitive to the position and number of alkoxy tails in the periphery. Two of the compounds with six and seven peripheral tails exhibited supergelation behavior in long-chain hydrocarbon solvents. One of these compounds with seven alkyl chains was investigated further, and it has shown higher stability and moldability in the gel state. The xerogel of the same compound was characterized with the help of extensive microscopic and X-ray diffraction studies. The nanofibers in the xerogel are found to consist of molecules arranged in a lamellar fashion. Furthermore, this compound shows very weak emission in solution but an aggregation-induced emission property in the gel state. Considering the dearth of solid-state blue-light-emitting organic materials, this molecular design is promising where the self-assembly and emission in the aggregated state can be preserved. The nonsymmetric design lowers the phase-transition temperatures.The presence of an amide bond helps to stabilize columnar packing over a long range because of its polarity and intermolecular hydrogen bonding in addition to promoting organogelation.
Collapse
Affiliation(s)
- Suraj Kumar Pathak
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati, 781039 Assam, India
| | - Balaram Pradhan
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati, 781039 Assam, India
| | - Monika Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali , Sector-81, Knowledge City, Manauli-140306, India
| | - Santanu Kumar Pal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali , Sector-81, Knowledge City, Manauli-140306, India
| | | |
Collapse
|