1
|
Church TL, Eriksson L, Leandri V, Gardner JM, Hedin N. A microporous polymer based on nonconjugated hindered biphenyls that emits blue light. Sci Rep 2024; 14:14923. [PMID: 38942951 PMCID: PMC11213909 DOI: 10.1038/s41598-024-65743-5] [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: 10/02/2023] [Accepted: 06/24/2024] [Indexed: 06/30/2024] Open
Abstract
Microporous organic polymers that have three-dimensional connectivity stemming from monomers with tetrahedral or tetrahedron-like geometry can have high surface areas and strong fluorescence. There are however few examples of such polymers based on hindered biaryls, and their fluorescence has not been studied. Hypothesizing that the contortion in a hindered biphenyl moiety would modulate the optical properties of a polymer built from it, we synthesized a meta-enchained polyphenylene from a 2,2',6,6'-tetramethylbiphenyl-based monomer, in which the two phenyl rings are nearly mutually perpendicular. The polymer was microporous with SBET = 495 m2 g-1. The polymer absorbed near-UV light and emitted blue fluorescence despite the meta-enchainment that would have been expected to break the conjugation. A related copolymer, synthesized from 2,2',6,6'-tetramethylbiphenyl-based and unsubstituted biphenyl-based monomers, was microporous but not fluorescent.
Collapse
Affiliation(s)
- Tamara L Church
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91, Stockholm, Sweden
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91, Stockholm, Sweden
| | - Valentina Leandri
- Department of Chemistry, Applied Physical Chemistry, KTH Royal Institute of Technology, 10044, Stockholm, Sweden
- RISE Chemical Process and Pharmaceutical Development, Forskargatan 20J, 15136, Södertälje, Sweden
| | - James M Gardner
- Department of Chemistry, Applied Physical Chemistry, KTH Royal Institute of Technology, 10044, Stockholm, Sweden
| | - Niklas Hedin
- Department of Materials and Environmental Chemistry, Stockholm University, 106 91, Stockholm, Sweden.
| |
Collapse
|
2
|
Li J, Shen P, Zhuang Z, Wu J, Tang BZ, Zhao Z. In-situ electro-responsive through-space coupling enabling foldamers as volatile memory elements. Nat Commun 2023; 14:6250. [PMID: 37802995 PMCID: PMC10558558 DOI: 10.1038/s41467-023-42028-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/27/2023] [Indexed: 10/08/2023] Open
Abstract
Voltage-gated processing units are fundamental components for non-von Neumann architectures like memristor and electric synapses, on which nanoscale molecular electronics have possessed great potentials. Here, tailored foldamers with furan‒benzene stacking (f-Fu) and thiophene‒benzene stacking (f-Th) are designed to decipher electro-responsive through-space interaction, which achieve volatile memory behaviors via quantum interference switching in single-molecule junctions. f-Fu exhibits volatile turn-on feature while f-Th performs stochastic turn-off feature with low voltages as 0.2 V. The weakened orbital through-space mixing induced by electro-polarization dominates stacking malposition and quantum interference switching. f-Fu possesses higher switching probability and faster responsive time, while f-Th suffers incomplete switching and longer responsive time. High switching ratios of up to 91 for f-Fu is realized by electrochemical gating. These findings provide evidence and interpretation of the electro-responsiveness of non-covalent interaction at single-molecule level and offer design strategies of molecular non-von Neumann architectures like true random number generator.
Collapse
Affiliation(s)
- Jinshi Li
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
| | - Pingchuan Shen
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
| | - Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
| | - Junqi Wu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China.
| |
Collapse
|
3
|
Jin S, Wang JY, Tang Y, Rouh H, Zhang S, Xu T, Wang Y, Yuan Q, Chen D, Unruh D, Li G. Central-to-Folding Chirality Control: Asymmetric Synthesis of Multilayer 3D Targets With Electron-Deficient Bridges. Front Chem 2022; 10:860398. [PMID: 35433628 PMCID: PMC9010227 DOI: 10.3389/fchem.2022.860398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 03/07/2022] [Indexed: 11/25/2022] Open
Abstract
New multilayer 3D chiral molecules have been designed and synthesized asymmetrically through the strategy of center-to-multilayer folding chirality control and double Suzuki couplings. Individual diastereoisomers were readily obtained and separated via flash column chromatography. The key diastereoisomer was further converted into corresponding enantiomers. These enantiomers possess electron-deficient aromatic bridges layered with top and bottom aromatic scaffolds. X-ray structural analysis has unambiguously confirmed the configuration, and intermolecular packing results in regular planar patterns in solid crystals. The synthesis was achieved in a total of ten steps starting from commercially available starting materials.
Collapse
Affiliation(s)
- Shengzhou Jin
- School of Chemistry and Chemical Engineering, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, China
| | - Jia-Ying Wang
- School of Chemistry and Chemical Engineering, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, China
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Ting Xu
- School of Chemistry and Chemical Engineering, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, China
| | - Yu Wang
- School of Chemistry and Chemical Engineering, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, China
| | - Qingkai Yuan
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Daixiang Chen
- Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, China
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| | - Guigen Li
- School of Chemistry and Chemical Engineering, Institute of Chemistry and BioMedical Sciences, Nanjing University, Nanjing, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX, United States
| |
Collapse
|
4
|
Tang Y, Jin S, Zhang S, Wu GZ, Wang JY, Xu T, Wang Y, Unruh D, Surowiec K, Ma Y, Wang S, Katz C, Liang H, Li Y, Cong W, Li G. Multilayer 3D Chiral Folding Polymers and Their Asymmetric Catalytic Assembly. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9847949. [PMID: 35265849 PMCID: PMC8873952 DOI: 10.34133/2022/9847949] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/10/2022] [Indexed: 01/01/2023]
Abstract
A novel class of polymers and oligomers of chiral folding chirality has been designed and synthesized, showing structurally compacted triple-column/multiple-layer frameworks. Both uniformed and differentiated aromatic chromophoric units were successfully constructed between naphthyl piers of this framework. Screening monomers, catalysts, and catalytic systems led to the success of asymmetric catalytic Suzuki-Miyaura polycouplings. Enantio- and diastereochemistry were unambiguously determined by X-ray structural analysis and concurrently by comparison with a similar asymmetric induction by the same catalyst in the asymmetric synthesis of a chiral three-layered product. The resulting chiral polymers exhibit intense fluorescence activity in a solid form and solution under specific wavelength irradiation.
Collapse
Affiliation(s)
- Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Shengzhou Jin
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Guan-Zhao Wu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Jia-Yin Wang
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Ting Xu
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yu Wang
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Kazimierz Surowiec
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yanzhang Ma
- Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Shiren Wang
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Courtney Katz
- Department of Cell Physiology and Molecular Biophysics, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430-6551, USA
| | - Hongjun Liang
- Department of Cell Physiology and Molecular Biophysics, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430-6551, USA
| | - Yunze Li
- Department of Industrial Engineering, Texas Tech University, Lubbock, Texas 79409-3061, USA
| | - Weilong Cong
- Department of Industrial Engineering, Texas Tech University, Lubbock, Texas 79409-3061, USA
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA.,Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| |
Collapse
|
5
|
Wu G, Liu Y, Yang Z, Ma L, Tang Y, Zhao X, Rouh H, Zheng Q, Zhou P, Wang JY, Siddique F, Zhang S, Jin S, Unruh D, Aquino AJA, Lischka H, Hutchins KM, Li G. Triple-Columned and Multiple-Layered 3D Polymers: Design, Synthesis, Aggregation-Induced Emission (AIE), and Computational Study. RESEARCH (WASHINGTON, D.C.) 2021; 2021:3565791. [PMID: 33629070 PMCID: PMC7888304 DOI: 10.34133/2021/3565791] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/21/2020] [Indexed: 12/22/2022]
Abstract
Conjugated polymers and oligomers have great potentials in various fields, especially in materials and biological sciences because of their intriguing electronic and optoelectronic properties. In recent years, the through-space conjugation system has emerged as a new assembled pattern of multidimensional polymers. Here, a novel series of structurally condensed multicolumn/multilayer 3D polymers and oligomers have been designed and synthesized through one-pot Suzuki polycondensation (SPC). The intramolecularly stacked arrangement of polymers can be supported by either X-ray structural analysis or computational analysis. In all cases, polymers were obtained with modest to good yields, as determined by GPC and 1H-NMR. MALDI-TOF analysis has proven the speculation of the step-growth process of this polymerization. The computational study of ab initio and DFT calculations based on trimer and pentamer models gives details of the structures and the electronic transition. Experimental results of optical and AIE research confirmed by calculation indicates that the present work would facilitate the research and applications in materials.
Collapse
Affiliation(s)
- Guanzhao Wu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yangxue Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Zhen Yang
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Liulei Ma
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yao Tang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Xianliang Zhao
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Qixuan Zheng
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Peng Zhou
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jia-Yin Wang
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Farhan Siddique
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China
| | - Sai Zhang
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Shengzhou Jin
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Daniel Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Adelia J. A. Aquino
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA
| | - Hans Lischka
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
- School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin 300072, China
| | - Kristin M. Hutchins
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
- Institute of Chemistry and Biomedical Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| |
Collapse
|
6
|
Cho E, Coropceanu V, Brédas JL. Electronic Structure of Multicomponent Organic Molecular Materials: Evaluation of Range-Separated Hybrid Functionals. J Chem Theory Comput 2020; 16:3712-3719. [DOI: 10.1021/acs.jctc.0c00138] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eunkyung Cho
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721-0088, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Veaceslav Coropceanu
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721-0088, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Jean-Luc Brédas
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721-0088, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| |
Collapse
|
7
|
Hassan Z, Spuling E, Knoll DM, Bräse S. Regioselective Functionalization of [2.2]Paracyclophanes: Recent Synthetic Progress and Perspectives. Angew Chem Int Ed Engl 2020; 59:2156-2170. [PMID: 31283092 PMCID: PMC7003812 DOI: 10.1002/anie.201904863] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/04/2019] [Indexed: 12/15/2022]
Abstract
[2.2]Paracyclophane (PCP) is a prevalent scaffold that is widely utilized in asymmetric synthesis, π-stacked polymers, energy materials, and functional parylene coatings that finds broad applications in bio- and materials science. In the last few years, [2.2]paracyclophane chemistry has progressed tremendously, enabling the fine-tuning of its structural and functional properties. This Minireview highlights the most important recent synthetic developments in the selective functionalization of PCP that govern distinct features of planar chirality as well as chiroptical and optoelectronic properties. Special focus is given to the function-inspired design of [2.2]paracyclophane-based π-stacked conjugated materials by transition-metal-catalyzed cross-coupling reactions. Current synthetic challenges, limitations, as well as future research directions and new avenues for advancing cyclophane chemistry are also summarized.
Collapse
Affiliation(s)
- Zahid Hassan
- Institute of Organic Chemistry (IOC)Fritz-Haber-Weg 676131KarlsruheGermany
- 3DMM2O—Cluster of ExcellenceInstitute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Germany
| | - Eduard Spuling
- Institute of Organic Chemistry (IOC)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Daniel M. Knoll
- Institute of Organic Chemistry (IOC)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC)Fritz-Haber-Weg 676131KarlsruheGermany
- 3DMM2O—Cluster of ExcellenceInstitute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Germany
- Institute of Toxicology and Genetics (ITG)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| |
Collapse
|
8
|
Hassan Z, Spuling E, Knoll DM, Bräse S. Regioselektive Funktionalisierung von [2.2]Paracyclophanen: aktuelle Synthesefortschritte und Perspektiven. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904863] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zahid Hassan
- Institut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
- 3DMM2O – ExzellenzclusterInstitut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Deutschland
| | - Eduard Spuling
- Institut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Daniel M. Knoll
- Institut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Stefan Bräse
- Institut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
- 3DMM2O – ExzellenzclusterInstitut für Organische Chemie (IOC)Karlsruher Institut für Technologie (KIT) Deutschland
- Institut für Toxikologie und Genetik (ITG)Karlsruher Institut für Technologie (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
| |
Collapse
|
9
|
Luo J, Wang Y, Song Z, Nakano T. Synthesis and photo-induced stereomutation of helical, π-stacked copolymers of dibenzofulvene and menthyl methacrylate. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
10
|
Li J, Shen P, Zhao Z, Tang BZ. Through-Space Conjugation: A Thriving Alternative for Optoelectronic Materials. CCS CHEMISTRY 2019. [DOI: 10.31635/ccschem.019.20180020] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Efficient electronic coupling is the key to constructing optoelectronic functional π systems. Generally, the delocalization of π electrons must comply with the framework constructed by covalent bonds (typically σ bonds), representing classic through-bond conjugation. However, through-space conjugation offers an alternative that achieves spatial electron communication with closely stacked π systems instead of covalent
bonds thus enabling multidimensional energy and charge transport. Because of the ever-accelerating advances of through-space conjugation studies, researchers are inspired greatly by the beauty of through-space conjugated systems and their potential
in high-tech applications. In this mini review, we introduce some representative and newly developed π systems having the through-space conjugation feature. In addition to discussing the profound impacts of through-space conjugation on the luminescence
properties and charge transport, we will review some impressive findings of distinctive molecules with attractive characteristics, such as aggregation-induced emission, thermally activated delayed fluorescence, bipolar charge transport, and multichannel. These achievements may bring about new breakthroughs of theory, materials, and devices in the fields of organic electronics and molecular electronics.
Collapse
|
11
|
Mandal D, Maity R, Dey S, Misra A. Effect of chain length and donor–acceptor substitution on the electrical responsive properties of conjugated biphenyls: a DFT-based computational study. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1489081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Debkumar Mandal
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Rakesh Maity
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Sudipto Dey
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Ajay Misra
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| |
Collapse
|
12
|
Luo J, Wang Y, Nakano T. Free-Radical Copolymerization of Dibenzofulvene with (Meth)acrylates Leading to π-Stacked Copolymers. Polymers (Basel) 2018; 10:E654. [PMID: 30966688 PMCID: PMC6404116 DOI: 10.3390/polym10060654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/06/2018] [Accepted: 06/09/2018] [Indexed: 12/23/2022] Open
Abstract
Copolymerizations of dibenzofulvene (DBF) with methyl methacrylate (MMA), 2-hydroxyethyl methacrylate (HEMA), methyl acrylate (MA), and 2-hydroxyethyl acrylate (HEA) were conducted under free radical conditions in toluene using α,α'-azobisisobutylonitrile (AIBN) as the initiator. In the copolymerizations, DBF indicated much higher reactivity than the comonomers, and the products comprised mainly of DBF units. NMR, UV, and fluorescence spectra, as well as electrochemical features indicated that the copolymers possess both isolated and rather short, sequential (meth)acrylate units, as well as π-stacked and unstacked DBF sequences. Isolated (meth)acrylate units are proposed to be sandwiched between DBF units. The ratios of π-stacked and unstacked side-chain fluorene groups of DBF units in excited states were accurately determined on the basis of fluorescent emission spectra; DBF units are mostly π-stacked in excited states as disclosed by fluorescence spectra. Two types of π-stacked sequences were suggested to be present in the ground state by electrochemical analysis. The copolymers exhibited higher solubility than pure poly(DBF).
Collapse
Affiliation(s)
- Jiyue Luo
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Yue Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
| | - Tamaki Nakano
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering, Hokkaido University, N 21, W 10, Kita-ku, Sapporo 001-0021, Japan.
- Integrated Research Consortium on Chemical Sciences (IRCCS), Institute for Catalysis (ICAT), Hokkaido University, N21 W10, Kita-ku, Sapporo 001-0021, Japan.
| |
Collapse
|
13
|
Luo W, Nie H, He B, Zhao Z, Peng Q, Tang BZ. Spectroscopic and Theoretical Characterization of Through-Space Conjugation of Foldamers with a Tetraphenylethene Hinge. Chemistry 2017; 23:18041-18048. [DOI: 10.1002/chem.201704182] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Wenwen Luo
- Center for Aggregation-Induced Emission; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
| | - Han Nie
- Center for Aggregation-Induced Emission; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
| | - Bairong He
- Center for Aggregation-Induced Emission; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
| | - Zujin Zhao
- Center for Aggregation-Induced Emission; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
| | - Qian Peng
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Science, Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P.R. China
| | - Ben Zhong Tang
- Center for Aggregation-Induced Emission; State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; Guangzhou 510640 P.R. China
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction; The Hong Kong University of Science & Technology, Kowloon; Hong Kong P.R. China
| |
Collapse
|
14
|
Nagarajan K, Gopan G, Cheriya RT, Hariharan M. Long alkyl side-chains impede exciton interaction in organic light harvesting crystals. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc02322g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First report on the effect of side-chain induced perturbations on exciton interactions in an organic light harvesting crystal.
Collapse
Affiliation(s)
- Kalaivanan Nagarajan
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- CET Campus
- Sreekariyam
- India
| | - Gopika Gopan
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- CET Campus
- Sreekariyam
- India
| | - Rijo T. Cheriya
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- CET Campus
- Sreekariyam
- India
| | - Mahesh Hariharan
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- CET Campus
- Sreekariyam
- India
| |
Collapse
|
15
|
Recent advances of folded tetraphenylethene derivatives featuring through-space conjugation. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.06.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
16
|
He B, Nie H, Luo W, Hu R, Qin A, Zhao Z, Tang BZ. Synthesis, structure and optical properties of tetraphenylethene derivatives with through-space conjugation between benzene and various planar chromophores. Org Chem Front 2016. [DOI: 10.1039/c6qo00204h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of tetraphenylethene derivatives with through-space conjugation and aggregation-enhanced emission properties are synthesized and studied.
Collapse
Affiliation(s)
- Bairong He
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Han Nie
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Wenwen Luo
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Rongrong Hu
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Department of Chemistry
| |
Collapse
|
17
|
Zhuang Z, Shen P, Ding S, Luo W, He B, Nie H, Wang B, Huang T, Hu R, Qin A, Zhao Z, Tang BZ. Synthesis, aggregation-enhanced emission, polymorphism and piezochromism of TPE-cored foldamers with through-space conjugation. Chem Commun (Camb) 2016; 52:10842-5. [DOI: 10.1039/c6cc04233c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Alteration of intermolecular stacking geometry of a through-space conjugated foldamer gives rise to blue and cyan fluorescent crystals.
Collapse
|
18
|
Lidster BJ, Kumar DR, Spring AM, Yu CY, Helliwell M, Raftery J, Turner ML. Alkyl substituted [2.2]paracyclophane-1,9-dienes. Org Biomol Chem 2016; 14:6079-87. [DOI: 10.1039/c6ob00885b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Highly strained alkyl-substituted [2.2]paracyclophane-1,9-dienes, suitable for ring opening metathesis polymerization to poly(phenylene vinylenes), have been prepared in excellent yields.
Collapse
Affiliation(s)
- Benjamin J. Lidster
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Dharam R. Kumar
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Andrew M. Spring
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Chin-Yang Yu
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Madeleine Helliwell
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - James Raftery
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| | - Michael L. Turner
- Organic Materials Innovation Centre
- School of Chemistry
- The University of Manchester
- Manchester
- UK
| |
Collapse
|
19
|
He B, Nie H, Chen L, Lou X, Hu R, Qin A, Zhao Z, Tang BZ. High Fluorescence Efficiencies and Large Stokes Shifts of Folded Fluorophores Consisting of a Pair of Alkenyl-Tethered, π-Stacked Oligo-p-phenylenes. Org Lett 2015; 17:6174-7. [PMID: 26679532 DOI: 10.1021/acs.orglett.5b03152] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of pure hydrocarbon fluorophores containing a pair of π-stacked oligo-p-phenylenes have been synthesized and analyzed by NMR and X-ray crystallography. They show good fluorescence in solutions and enhanced fluorescence in the aggregated state. Large Stokes shifts (up to 214 nm) have been achieved in these folded fluorophores in virtue of intramolecular energy transfer, and balanced structural rigidity and flexibility. These folded fluorophores provide perfect models for understanding the energy and charge transfer process in π-stacked systems.
Collapse
Affiliation(s)
- Bairong He
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Han Nie
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Long Chen
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Xiaoding Lou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Rongrong Hu
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.,Department of Chemistry, The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon, Hong Kong, China.,Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Hong Kong, China
| |
Collapse
|
20
|
|
21
|
Chen L, Wang YH, He B, Nie H, Hu R, Huang F, Qin A, Zhou XS, Zhao Z, Tang BZ. Multichannel conductance of folded single-molecule wires aided by through-space conjugation. Angew Chem Int Ed Engl 2015; 54:4231-5. [PMID: 25694026 DOI: 10.1002/anie.201411909] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/21/2015] [Indexed: 11/09/2022]
Abstract
Deciphering charge transport through multichannel pathways in single-molecule junctions is of high importance to construct nanoscale electronic devices and deepen insight into biological redox processes. Herein, we report two tailor-made folded single-molecule wires featuring intramolecular π-π stacking interactions. The scanning tunneling microscope (STM) based break-junction technique and theoretical calculations show that through-bond and through-space conjugations are integrated into one single-molecule wire, allowing for two simultaneous conducting channels in a single-molecule junction. These folded molecules with stable π-π stacking interaction offer conceptual advances in single-molecule multichannel conductance, and are perfect models for conductance studies in biological systems, organic thin films, and π-stacked columnar aggregates.
Collapse
Affiliation(s)
- Long Chen
- Guangdong Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology (SCUT), Guangzhou 510640 (China)
| | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Chen L, Wang YH, He B, Nie H, Hu R, Huang F, Qin A, Zhou XS, Zhao Z, Tang BZ. Multichannel Conductance of Folded Single-Molecule Wires Aided by Through-Space Conjugation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411909] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
23
|
Tovar JD. Peptide Nanostructures with π-Ways: Photophysical Consequences of Peptide/π-Electron Molecular Self-Assembly. Isr J Chem 2015. [DOI: 10.1002/ijch.201400161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
24
|
Zhang X, Wu HQ, Xu HL, Sun SL, Su ZM. Modulating the Charge Transfer of D–S–A Molecules: Structures and NLO Properties. J Phys Chem A 2015; 119:767-73. [DOI: 10.1021/jp5103127] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xue Zhang
- Institute of Functional Material Chemistry,
Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Heng-Qing Wu
- Institute of Functional Material Chemistry,
Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry,
Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Shi-Ling Sun
- Institute of Functional Material Chemistry,
Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| | - Zhong-Min Su
- Institute of Functional Material Chemistry,
Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, People’s Republic of China
| |
Collapse
|
25
|
Hirose T, Tsunoi Y, Fujimori Y, Matsuda K. Fluorescence Enhancement of Covalently Linked 1-Cyano-1,2-diphenylethene Chromophores with Naphthalene-1,8-diyl Linker Units: Analysis Based on Kinetic Constants. Chemistry 2014; 21:1637-44. [DOI: 10.1002/chem.201404745] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Indexed: 11/08/2022]
|
26
|
Min KS, Kim YJ, Ko HJ, Kwak DH, Kim TW, Shin JW, Kim BG. Isolation and characterization of conformational isomers ofN,N′-bis(3,5-dichlorosalicylidene)-2,2′-ethylenedianiline: crystal structure, photoluminescence, and density functional theory calculation. J PHYS ORG CHEM 2014. [DOI: 10.1002/poc.3379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kil Sik Min
- Department of Chemistry Education and Green-Nano Materials Research Center; Kyungpook National University; Daegu 702-701 Korea
| | | | - Hyun Jin Ko
- Daegu Science High School; Daegu 706-852 Korea
| | | | | | - Jong Won Shin
- Department of Chemistry, Graduate School and Green-Nano Materials Research Center; Kyungpook National University; Daegu 702-701 Korea
| | - Bong Gon Kim
- Department of Chemistry Education; Gyeongsang National University; Jinju 660-701 Korea
| |
Collapse
|
27
|
Wall BD, Zhou Y, Mei S, Ardoña HAM, Ferguson AL, Tovar JD. Variation of formal hydrogen-bonding networks within electronically delocalized π-conjugated oligopeptide nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:11375-11385. [PMID: 25181015 DOI: 10.1021/la501999g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This photophysical study characterizes the generality of intermolecular electronic interactions present within nanomaterials derived from self-assembling oligopeptides with embedded π-conjugated oligophenylenevinylene (OPV) subunits stilbene and distyrylbenzene that in principle present two distinct β-sheet motifs. Two different synthetic approaches led to oligopeptides that upon self-assembly are expected to self-assemble into multimeric aggregates stabilized by β-sheet-like secondary structures. The target molecules express either two C-termini linked to the central OPV core (symmetric peptides) or the more common N-termini to C-termini polarity typical of natural oligopeptides (nonsymmetric peptides). Both peptide secondary structures were shown to form extended 1-D peptide aggregates with intimate intermolecular π-electron interactions. Differences in length of the π-conjugated OPV segments resulted in differing extents of intermolecular interactions and the resulting photophysics. The peptides containing the shorter stilbene (OPV2) units showed little ground state interactions and resulted in excimeric emission, while the longer distyrylbenzene (OPV3) peptides had different ground state interactions between adjacent π-conjugated subunits resulting in either perturbed electronic properties arising from exciton coupling or excimer-like excited states. Molecular dynamics simulations of nascent aggregate formation predict peptide dimerization to be a spontaneous process, possessing thermodynamic driving potentials in the range 2-6 kcal/mol for the four molecules considered. Antiparallel stacking of the peptides containing an OPV3 subunit is thermodynamically favored over the parallel orientation, whereas both arrangements are equally favored for the peptides containing an OPV2 subunit. This study validates the generality of peptide-π-peptide self-assembly to provide electronically delocalized supramolecular structures and suggests flexibility in peptide sequence design as a way to tune the material properties of π-conjugated supramolecular polymers.
Collapse
Affiliation(s)
- Brian D Wall
- Department of Chemistry, Krieger School of Arts and Sciences, ‡Institute of NanoBioTechnology, and §Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University , 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | | | | | | | | | | |
Collapse
|
28
|
Yu CY, Sie CH, Yang CY. Synthesis and through-space charge transfer of dioctyloxy diperfluorohexyl substituted [2.2]paracyclophane-1,9-diene. NEW J CHEM 2014. [DOI: 10.1039/c4nj01045k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Guo Z, Lee D, Schaller RD, Zuo X, Lee B, Luo T, Gao H, Huang L. Relationship between Interchain Interaction, Exciton Delocalization, and Charge Separation in Low-Bandgap Copolymer Blends. J Am Chem Soc 2014; 136:10024-32. [DOI: 10.1021/ja503465s] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | - Richard D. Schaller
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | | | | | | | | | | |
Collapse
|
30
|
Wall BD, Zacca AE, Sanders AM, Wilson WL, Ferguson AL, Tovar JD. Supramolecular polymorphism: tunable electronic interactions within π-conjugated peptide nanostructures dictated by primary amino acid sequence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5946-5956. [PMID: 24802289 DOI: 10.1021/la500222y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a systematic study of the photophysical properties of one-dimensional electronically delocalized nanostructures assembled from π-conjugated subunits embedded within oligopeptide backbones. The nature of the excited states within these nanostructures is studied as a function of primary amino acid sequence utilizing steady-state and time-resolved spectroscopies, and their atomistic structure is probed by molecular simulation. Variations introduced into the amino acid side chains at specific residue locations along the molecular peptide backbone lead to pronounced changes in the observed photophysical behavior of the fibrillar structures (spanning H-like excitonic coupling and disordered excimeric coupling) that arise from subtle changes in the π-stacking within them. These results indicate that residue modification-in terms of relative size, solvation properties, and with respect to the distance from the central π-electron core-enables the ability to tune chromophore packing and the resulting photophysics of supramolecular assemblies of π-conjugated bioelectronic materials in a rational and systematic manner.
Collapse
Affiliation(s)
- Brian D Wall
- Department of Chemistry, Krieger School of Arts and Sciences, Johns Hopkins University , 3400 N. Charles St., Baltimore, Maryland 21218, United States
| | | | | | | | | | | |
Collapse
|
31
|
Sakamaki D, Ito A, Matsumoto T, Tanaka K. Electronic structure of tetraaza[1.1.1.1]o,p,o,p-cyclophane and its oxidized states. RSC Adv 2014. [DOI: 10.1039/c4ra06065b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The smallest macrocyclic oligoarylamine bearing the alternantortho–para-linkage exhibits the unique structural and electronic features.
Collapse
Affiliation(s)
- Daisuke Sakamaki
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
| | - Akihiro Ito
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
| | | | - Kazuyoshi Tanaka
- Department of Molecular Engineering
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510, Japan
| |
Collapse
|
32
|
Lee J, Kim B, Kwon JE, Kim J, Yokoyama D, Suzuki K, Nishimura H, Wakamiya A, Park SY, Park J. Excimer formation in organic emitter films associated with a molecular orientation promoted by steric hindrance. Chem Commun (Camb) 2014; 50:14145-8. [DOI: 10.1039/c4cc05348f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
White emission was obtained by introducing a terphenyl group into a highly twisted core, which promoted a molecular orientation suitable for excimer formation.
Collapse
Affiliation(s)
- Jaehyun Lee
- Department of Chemistry/Display Research Center
- The Catholic University of Korea
- Bucheon, South Korea
| | - Beomjin Kim
- Department of Chemistry/Display Research Center
- The Catholic University of Korea
- Bucheon, South Korea
| | - Ji Eon Kwon
- Department of Materials Science & Engineering
- Seoul National University
- Seoul 151-744, Korea
| | - Joonghan Kim
- Department of Chemistry/Display Research Center
- The Catholic University of Korea
- Bucheon, South Korea
| | - Daisuke Yokoyama
- Department of Organic Device Engineering and Research Center for Organic Electronics (ROEL)
- Yamagata University
- Yonezawa, Japan
| | | | | | | | - Soo Young Park
- Department of Materials Science & Engineering
- Seoul National University
- Seoul 151-744, Korea
| | - Jongwook Park
- Department of Chemistry/Display Research Center
- The Catholic University of Korea
- Bucheon, South Korea
| |
Collapse
|
33
|
Takai A, Yasuda T, Ishizuka T, Kojima T, Takeuchi M. A Directly Linked Ferrocene-Naphthalenediimide Conjugate: Precise Control of Stacking Structures of π-Systems by Redox Stimuli. Angew Chem Int Ed Engl 2013; 52:9167-71. [DOI: 10.1002/anie.201302587] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/02/2013] [Indexed: 01/05/2023]
|
34
|
Takai A, Yasuda T, Ishizuka T, Kojima T, Takeuchi M. A Directly Linked Ferrocene–Naphthalenediimide Conjugate: Precise Control of Stacking Structures of π‐Systems by Redox Stimuli. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302587] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Atsuro Takai
- Organic Materials Group, National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047 (Japan) http://www.nims.go.jp/macromol/english/
| | - Takeshi Yasuda
- Organic Thin‐Film Solar Cells Group, National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047 (Japan)
| | - Tomoya Ishizuka
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1‐1‐1 Tennoudai, Tsukuba, Ibaraki 305‐8571 (Japan)
| | - Takahiko Kojima
- Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1‐1‐1 Tennoudai, Tsukuba, Ibaraki 305‐8571 (Japan)
| | - Masayuki Takeuchi
- Organic Materials Group, National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047 (Japan) http://www.nims.go.jp/macromol/english/
| |
Collapse
|
35
|
Koyama Y, Hiroto S, Shinokubo H. Synthesis of Highly Distorted π-Extended [2.2]Metacyclophanes by Intermolecular Double Oxidative Coupling. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301180] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
36
|
Koyama Y, Hiroto S, Shinokubo H. Synthesis of Highly Distorted π-Extended [2.2]Metacyclophanes by Intermolecular Double Oxidative Coupling. Angew Chem Int Ed Engl 2013; 52:5740-3. [DOI: 10.1002/anie.201301180] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Indexed: 11/05/2022]
|