1
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Chuncha V, Achary Balahoju S, Dutta S, Giribabu L, Chitta R. Investigating the role of corrole as an excitation energy relay in light-induced processes in closely connected N,N'-bis(biphenyl-4-yl)aniline functionalized corrole donor-acceptor dyad. Photochem Photobiol 2024; 100:1041-1054. [PMID: 38549042 DOI: 10.1111/php.13939] [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: 11/22/2023] [Revised: 01/29/2024] [Accepted: 03/07/2024] [Indexed: 07/30/2024]
Abstract
A photosynthetic antenna-reaction center model, BBA-PFCor comprised of N,N'-bis(biphenyl-4-yl)aniline (BBA) covalently functionalized to bis(pentafluoro)corrole moiety has been prepared and the contribution of the BBA as the photoinduced energy transfer antenna was investigated. UV-visible studies have shown that integrating the electron-rich BBA chromophore into the corrole core has broadened the soret band of the corrole moiety with the absorption spanning from 300 to 700 nm. Electrochemical studies, in corroboration with the computational calculations, revealed that, BBA moiety can act as an electron reservoir and, in the excited state, it would transfer the excited energy to the corrole moiety in the dyad. Steady-state fluorescence studies have demonstrated that, upon photoexcitation of the BBA moiety of BBA-PFCor at 310 nm in solvents of varied polarity, the BBA emission centered at 400 nm was observed to be quenched, with the concomitant appearance of the corrole emission from 500 to 700 nm, indicating the happening of photoinduced energy transfer (PEnT) from 1BBA* to corrole moiety. Parallel control experiments involving the excitation of the corrole moiety at 410 nm did not result in the diminishing of the corrole emission, suggesting that the quenching of the BBA emission in BBA-PFCor is majorly due to intramolecular PEnT from 1BBA* to corrole moiety leading to the formation of singlet excited corrole, that is, 1BBA*-PFCor ➔ BBA-1PFCor*. The free energy changes of PEnT, ΔGEnT, were found to be thermodynamically feasible in all the solvents used for the study. Parallel time-resolved fluorescence studies were congruent with the steady-state fluorescence results and provided further evidence for the occurrence of ultrafast PEnT from 1BBA*➔corrole in the dyad with the rates of energy transfer (kEnT) of ~108 s-1.
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Affiliation(s)
- Vijaykumar Chuncha
- Artificial Photosynthesis Laboratory, Department of Chemistry, National Institute of Technology Warangal, Telangana, India
| | - Shivaprasad Achary Balahoju
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Snigdha Dutta
- Artificial Photosynthesis Laboratory, Department of Chemistry, National Institute of Technology Warangal, Telangana, India
| | - Lingamallu Giribabu
- Polymers & Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Raghu Chitta
- Artificial Photosynthesis Laboratory, Department of Chemistry, National Institute of Technology Warangal, Telangana, India
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2
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Fernandes RS, Kumari J, Sriram D, Dey N. Fluorescent Nanoassembly of Tetrazole-Based Dyes with Amphoteric Surfactants: Investigation of Cyanide Sensing and Antitubercular Activity. ACS APPLIED BIO MATERIALS 2023; 6:4158-4167. [PMID: 37737110 DOI: 10.1021/acsabm.3c00357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Tetrazole-based easily synthesizable fluorogenic probes have been developed that can form self-assembled nanostructures in the aqueous medium. Though the compounds could achieve detection of cyanide ions in apolar solvents, such as, THF, significant interference was observed from other basic anions, such as F-, AcO-, H2PO4-, etc. On the other hand, a highly specific response was observed for CN- ions in the aqueous medium. However, the sensitivity was so poor that it could hardly be useful for real-life sample analysis. Interestingly, the co-assembly of such probe molecules with hydroxyethyl-anchored amphoteric surfactants could drastically improve the sensitivity toward CN- ions in water without dampening their excellent selectivity. Also, it was observed that the degree of fluorescence response for CN- ions depends on the nature of the polyaromatic scaffolds (naphthyl vs anthracenyl), the nature of the surfactant assembly (micelle vs vesicle), etc. The mechanistic investigation indicates the hydrogen bonding interaction between the tetrazole -NH group and cyanide ions in the aqueous medium, which can effectively change the electronics of the tetrazole unit, resulting in alteration in the extent of charge transfer interaction. Then, the biocompatible composite materials (dye-surfactant assemblies at different ratios) were tested for antituberculosis activity. Fortunately, in a few cases, the compositions were found to be as effective as the commercially available antituberculosis drug, ethambutol.
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Affiliation(s)
- Rikitha S Fernandes
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Hyderabad 500078, India
| | - Jyothi Kumari
- Department of Pharmacy, BITS-Pilani Hyderabad Campus, Hyderabad 500078, India
| | - Dharmarajan Sriram
- Department of Pharmacy, BITS-Pilani Hyderabad Campus, Hyderabad 500078, India
| | - Nilanjan Dey
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Hyderabad 500078, India
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3
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Wang K, Huang H, Xu K, Peng S, You X, Chen X, Xu J, Wu D, Xia J. Veil of the Charge Transfer State in Bay-Annulated Indigo-Based Donor-Acceptor Systems: Charge Separation versus Singlet Fission. J Phys Chem Lett 2023; 14:4822-4829. [PMID: 37191450 DOI: 10.1021/acs.jpclett.3c00798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Bay-annulated indigo (BAI) is a new potential SF-active building block, which has aroused great interest in the design of highly stable singlet fission materials. However, singlet fission of unfunctionalized BAI is inactive due to the inappropriate energy levels. Herein, we seek to develop a new design strategy by introducing the charge transfer interaction to tune the exciton dynamics of BAI derivatives. A new donor-acceptor molecule (TPA-2BAI) and two control molecules (TPA-BAI and 2TPA-BAI) were designed and synthesized to unravel the veil of CT states in tuning the excited-state dynamics of BAI derivatives. Transient absorption spectroscopy studies show that CT states are generated immediately following the excitation. However, the low-lying CT states induced by strong donor-acceptor interactions result in them acting as trap states and inhibiting the SF process. These results show that the low-lying CT state is detrimental to SF and provide insight into the design of CT-mediated BAI-based SF materials.
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Affiliation(s)
- Kangwei Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Huaxi Huang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Ke Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Shaoqian Peng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Xiaoxiao You
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Xingyu Chen
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Jingwen Xu
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Di Wu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
| | - Jianlong Xia
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Center of Smart Materials and Devices, Wuhan University of Technology, Wuhan 430070, China
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4
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Morioka K, Wakamatsu K, Tsurumaki E, Toyota S. Synthesis, Structures, and Properties of Helically Fused Anthraquinones with Unusually Close Carbonyl-Carbonyl Contacts. Chemistry 2021; 28:e202103694. [PMID: 34762325 DOI: 10.1002/chem.202103694] [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: 10/12/2021] [Indexed: 11/08/2022]
Abstract
Electron-deficient aromatic ketones consisting of three fused anthraquinone units were synthesized by oxidation of the corresponding fused anthracenes. X-ray analysis revealed that these compounds had nonplanar helical structures with unusual contacts, C=O⋅⋅⋅C=O 2.467 Å, between the inner carbonyl groups. The role of n⋅⋅⋅π* interactions in the short contacts was evaluated using a noncovalent interaction plot and natural bond orbital analysis. The dynamic process involving helical inversion was observed by the variable temperature 1 H NMR measurement of a derivative with 2,4,6-trimethylphenyl groups, and the barrier was estimated to be 77 kJ mol-1 . DFT calculations indicated that the helical inversion proceeded via a multistep mechanism. The characteristic spectroscopic and electrochemical data due to the electron-deficient anthraquinone units and the sterically congested carbonyl groups are discussed with the aid of DFT calculations.
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Affiliation(s)
- Kozue Morioka
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama, 700-0005, Japan
| | - Eiji Tsurumaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
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5
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Jiao Y, Đorđević L, Mao H, Young RM, Jaynes T, Chen H, Qiu Y, Cai K, Zhang L, Chen XY, Feng Y, Wasielewski MR, Stupp SI, Stoddart JF. A Donor-Acceptor [2]Catenane for Visible Light Photocatalysis. J Am Chem Soc 2021; 143:8000-8010. [PMID: 34028258 DOI: 10.1021/jacs.1c01493] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Colored charge-transfer complexes can be formed by the association between electron-rich donor and electron-deficient acceptor molecules, bringing about the narrowing of HOMO-LUMO energy gaps so that they become capable of harnessing visible light. In an effort to facilitate the use of these widespread, but nonetheless weak, interactions for visible light photocatalysis, it is important to render the interactions strong and robust. Herein, we employ a well-known donor-acceptor [2]catenane-formed by the mechanical interlocking of cyclobis(paraquat-p-phenylene) and 1,5-dinaphtho[38]crown-10-in which the charge-transfer interactions between two 4,4'-bipyridinium and two 1,5-dioxynaphthalene units are enhanced by mechanical bonding, leading to increased absorption of visible light, even at low concentrations in solution. As a result, since this [2]catenane can generate persistent bipyridinium radical cations under continuous visible-light irradiation without the need for additional photosensitizers, it can display good catalytic activity in both photo-reductions and -oxidations, as demonstrated by hydrogen production-in the presence of platinum nanoparticles-and aerobic oxidation of organic sulfides, such as l-methionine, respectively. This research, which highlights the usefulness of nanoconfinement present in mechanically interlocked molecules for the reinforcement of weak interactions, can not only expand the potential of charge-transfer interactions in solar energy conversion and synthetic photocatalysis but also open up new possibilities for the development of active artificial molecular shuttles, switches, and machines.
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Affiliation(s)
- Yang Jiao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Luka Đorđević
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Haochuan Mao
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ryan M Young
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Tyler Jaynes
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Hongliang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yunyan Qiu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kang Cai
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Long Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xiao-Yang Chen
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yuanning Feng
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael R Wasielewski
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Institute for Sustainability and Energy at Northwestern, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Samuel I Stupp
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Center for Bio-inspired Energy Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208, United States.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Medicine, Northwestern University, 676 North St. Clair Street, Chicago, Illinois 60611, United States.,Simpson Querrey Institute, Northwestern University, Chicago, Illinois 60611, United States
| | - J Fraser Stoddart
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia.,Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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6
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Nebauer J, Ishikawa T, Toyota S, Tykwinski RR, Iwanaga T. Construction of Anthracene Bisimide-based Donor–Acceptor–Donor Arrays with 6,13-Diethynylpentacenes and 9,10-Diethynylanthracenes as Extended π-Conjugated Systems. CHEM LETT 2020. [DOI: 10.1246/cl.200234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Johannes Nebauer
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, Erlangen 91058, Germany
| | - Tenta Ishikawa
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
| | - Shinji Toyota
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Rik R. Tykwinski
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton T6G 2G2, Canada
| | - Tetsuo Iwanaga
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, Erlangen 91058, Germany
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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7
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Mathew R, Mallia RR, Haridas S, Jacob JP. Effect of substituents on the fluorescence quenching of a few (anthracen-9-yl)methanamines. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112552] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Zhang C, Tang M, Sun B, Wang W, Yi Y, Zhang FL. A three-step sequence strategy for facile construction of donor–acceptor type molecules: triphenylamine-substituted acenes. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A new synthetic strategy was successfully developed for highly efficient construction of triphenylamine-substituted polycyclic aromatic hydrocarbons (PAHs), including anthracenes, tetraphenes, pentaphenes, and trinaphthylene. These molecules exhibited special structural characteristics, including donor–acceptor–donor (D–A–D) and donor–acceptor (D–A). Diverse aryl iodides coupled well with chlorinated 2-methyl benzaldehydes via a transient ligand-directed C–H bond arylation strategy to furnish various PAH precursors. The subsequent palladium-catalyzed Suzuki cross-couplings with 4-(diphenylamino)phenylboronic acid produced corresponding triphenylamine derivatives. Further, Brønsted acid promoted cycloaromatization generated the triphenylamine-substituted PAHs readily. The photophysical properties was investigated by UV–vis absorption and fluorescence emission spectroscope together with density functional theory (DFT) calculations.
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Affiliation(s)
- Chen Zhang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Ming Tang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Bing Sun
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Weizhou Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, P.R. China
| | - Ying Yi
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
| | - Fang-Lin Zhang
- Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, Hubei, P.R. China
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9
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Ahn M, Kim MJ, Wee KR. Electron Push–Pull Effects in 3,9-Bis(p-(R)-diphenylamino)perylene and Constraint on Emission Color Tuning. J Org Chem 2019; 84:12050-12057. [DOI: 10.1021/acs.joc.9b01849] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mina Ahn
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Min-Ji Kim
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
| | - Kyung-Ryang Wee
- Department of Chemistry and Institute of Basic Science, Daegu University, Gyeongsan 38453, Republic of Korea
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10
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Hassan SZ, Cheon HJ, Choi C, Yoon S, Kang M, Cho J, Jang YH, Kwon SK, Chung DS, Kim YH. Molecular Engineering of a Donor-Acceptor Polymer To Realize Single Band Absorption toward a Red-Selective Thin-Film Organic Photodiode. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28106-28114. [PMID: 31311263 DOI: 10.1021/acsami.9b08326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, we explore the strategy of realizing a red-selective thin-film organic photodiode (OPD) by synthesizing a new copolymer with a highly selective red-absorption feature. PCZ-Th-DPP, with phenanthrocarbazole (PCZ) and diketopyrrolopyrrole (DPP) as donor and acceptor units, respectively, was strategically designed/synthesized based on a time-dependent density functional theory calculation, which predicted the significant suppression of the band II absorption of PCZ-Th-DPP due to the extremely efficient intramolecular charge transfer. We demonstrate that the synthesized PCZ-Th-DPP exhibits not only a high absorption coefficient within the red-selective band I region, as theoretically predicted, but also a preferential face-on intermolecular structure in the thin-film state, which is beneficial for vertical charge extraction as an outcome of a glancing incidence X-ray diffraction study. By employing PCZ-Th-DPP as a photoactive layer of Schottky OPD, to fully match its absorption characteristic to the spectral response of the red-selective OPD, we demonstrate a genuine red-selective specific detectivity in the order of 1012 Jones while maintaining a thin active layer thickness of ∼300 nm. This work demonstrates the possibility of realizing a full color image sensor with a synthetic approach to the constituting active layers without optical manipulation.
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Affiliation(s)
- Syed Zahid Hassan
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Hyung Jin Cheon
- Department of Chemistry and RIGET , Gyeongsang National University , Jinju 52828 , Republic of Korea
| | - Changwon Choi
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Seongwon Yoon
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Mingyun Kang
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Jangwhan Cho
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Yun Hee Jang
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Soon-Ki Kwon
- Department of Materials Engineering and Convergence Technology and ERI , Gyeongsang National University , Jinju 660-701 , Republic of Korea
| | - Dae Sung Chung
- Department of Energy Science & Engineering , Daegu Gyeongbuk Institute of Science & Technology (DGIST) , Daegu 42988 , Republic of Korea
| | - Yun-Hi Kim
- Department of Chemistry and RIGET , Gyeongsang National University , Jinju 52828 , Republic of Korea
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11
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Hwang TG, Kim JY, Namgoong JW, Lee JM, Yuk SB, Kim SH, Kim JP. Aggregation induced emission of diketopyrrolopyrrole (DPP) derivatives for highly fluorescent red films. Photochem Photobiol Sci 2019; 18:1064-1074. [DOI: 10.1039/c8pp00403j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Triphenylamine moieties substituted diketopyrrolopyrrole derivatives showed highly emissive characteristics in solid film state by aggregation induced emission.
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Affiliation(s)
- Tae Gyu Hwang
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jeong Yun Kim
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jin Woong Namgoong
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jae Moon Lee
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Sim Bum Yuk
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Se Hun Kim
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Jae Pil Kim
- Lab. of Organic Photo-functional Materials
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
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12
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Shukla J, Ajayakumar MR, Mukhopadhyay P. Buchwald-Hartwig Coupling at the Naphthalenediimide Core: Access to Dendritic, Panchromatic NIR Absorbers with Exceptionally Low Band Gap. Org Lett 2018; 20:7864-7868. [PMID: 30499673 DOI: 10.1021/acs.orglett.8b03408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first successful Buchwald-Hartwig reaction at the naphthalenediimide core is reported, leading to the coupling of diverse secondary aromatic amines including dendritic donors. The G1-dendrimer-based donor exhibit blackish color, providing access to black absorbing systems. λonset values up to 1070 nm was achieved, which is the maximum from a single NDI scaffold. These dyes also manifest multielectron reservoir properties. A total of eight-redox states with a band gap of ∼0.95 eV was accomplished.
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Affiliation(s)
- Jyoti Shukla
- Supramolecular and Material Chemistry Lab, School of Physical Sciences , Jawaharlal Nehru University , New Delhi 110067 , India
| | - M R Ajayakumar
- Supramolecular and Material Chemistry Lab, School of Physical Sciences , Jawaharlal Nehru University , New Delhi 110067 , India
| | - Pritam Mukhopadhyay
- Supramolecular and Material Chemistry Lab, School of Physical Sciences , Jawaharlal Nehru University , New Delhi 110067 , India
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13
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Enantioselective radical conjugate additions driven by a photoactive intramolecular iminium-ion-based EDA complex. Nat Commun 2018; 9:3274. [PMID: 30115906 PMCID: PMC6095928 DOI: 10.1038/s41467-018-05375-2] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 07/03/2018] [Indexed: 12/28/2022] Open
Abstract
The photochemical activity of electron donor–acceptor (EDA) complexes provides a way to generate radicals under mild conditions. This strategy has found application in chemical synthesis and recently in enantioselective catalysis. Reported methods classically relied on the formation of intermolecular EDA complexes, generated upon aggregation of two suitable reagents. Herein, we further expand the synthetic utility of this strategy demonstrating that an intramolecular EDA complex can trigger a photochemical catalytic enantioselective radical process. This approach enables radical conjugate additions to β-substituted cyclic enones to form quaternary carbon stereocenters with high stereocontrol using visible light irradiation. Crucial for success is the use of an amine catalyst, adorned with a carbazole moiety, which generates, upon condensation with enones, chiral iminium ions that show a broad absorption band in the visible region. This optical property originates from an intramolecular charge transfer π–π interaction between the electron-rich carbazole nucleus and the electron-deficient iminium double bond. In enantioselective catalysis, electron donor–acceptor (EDA) complexes are usually photochemically activated in an intermolecular fashion. Here, the authors report the stereoselective conjugate addition to β-substituted cyclic enones proceeding without external photoredox catalysts via an intramolecular EDA complex.
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14
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Chen F, Zhang W, Tian T, Bai B, Wang H, Li M. Substituent Effect on Intramolecular Charge Transfer of Symmetric Methoxy-Substituted Bi-1,3,4-oxadiazole Derivatives. J Phys Chem A 2017; 121:8399-8407. [DOI: 10.1021/acs.jpca.7b08845] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fangyi Chen
- Key Laboratory of Automobile Materials (MOE) & College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Wanxi Zhang
- Key Laboratory of Automobile Materials (MOE) & College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Taiji Tian
- Key Laboratory of Automobile Materials (MOE) & College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Binglian Bai
- College
of Physics, Jilin University, Changchun 130012, China
| | - Haitao Wang
- Key Laboratory of Automobile Materials (MOE) & College of Materials Science and Engineering, Jilin University, Changchun 130012, China
- Institute
of Theoretical Chemistry, Jilin University, Changchun 130023, China
| | - Min Li
- Key Laboratory of Automobile Materials (MOE) & College of Materials Science and Engineering, Jilin University, Changchun 130012, China
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15
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Novel Polyamides with 5H-Dibenzo[b,f]azepin-5-yl-Substituted Triphenylamine: Synthesis and Visible-NIR Electrochromic Properties. Polymers (Basel) 2017; 9:polym9100542. [PMID: 30965843 PMCID: PMC6418813 DOI: 10.3390/polym9100542] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/17/2017] [Accepted: 10/20/2017] [Indexed: 01/31/2023] Open
Abstract
In this study, a new diamine monomer, namely 4,4′-diamino-4″-(5H-dibenzo[b,f]azepin-5-yl)triphenylamine, was prepared and polymerized with four kinds of dicarboxylic acids via direct polycondensation reaction resulting in a novel series of soluble and electroactive polyamides (PAs). The tough thin films of all PAs could be solution-cast onto an indium-tin oxide (ITO)-coated glass substrate owing to the good solubility in polar organic solvents. Two pairs of obvious redox peaks for these films were observed in cyclic voltammetry (CV) with low onset potentials (Eonset) of 0.37–0.42 V accompanying with remarkable reversible color changes between light yellow and dark blue. A new absorption peak at around 915 nm emerged in near infrared (NIR) spectra; the increasing potential indicated that PAs could be used as a NIR electrochromic material. Moreover, the PAs showed high coloration efficiency (CE; η) in the range of 190–259 cm2 C−1.
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16
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Merz J, Fink J, Friedrich A, Krummenacher I, Al Mamari HH, Lorenzen S, Haehnel M, Eichhorn A, Moos M, Holzapfel M, Braunschweig H, Lambert C, Steffen A, Ji L, Marder TB. Pyrene Molecular Orbital Shuffle-Controlling Excited State and Redox Properties by Changing the Nature of the Frontier Orbitals. Chemistry 2017; 23:13164-13180. [PMID: 28718975 DOI: 10.1002/chem.201702594] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 01/01/2023]
Abstract
We show that by judicious choice of substituents at the 2- and 7-positions of pyrene, the frontier orbital order of pyrene can be modified, giving enhanced control over the nature and properties of the photoexcited states and the redox potentials. Specifically, we introduced a julolidine-like moiety and Bmes2 (mes=2,4,6-Me3 C6 H2 ) as very strong donor (D) and acceptor (A), respectively, giving 2,7-D-π-D- and unsymmetric 2,7-D-π-A-pyrene derivatives, in which the donor destabilizes the HOMO-1 and the acceptor stabilizes the LUMO+1 of the pyrene core. Consequently, for 2,7-substituted pyrene derivatives, unusual properties are obtained. For example, very large bathochromic shifts were observed for all of our compounds, and unprecedented green light emission occurs for the D/D system. In addition, very high radiative rate constants in solution and in the solid state were recorded for the D-π-D- and D-π-A-substituted compounds. All compounds show reversible one-electron oxidations, and Jul2 Pyr exhibits a second oxidation, with the largest potential splitting (ΔE=440 mV) thus far reported for 2,7-substituted pyrenes. Spectroelectrochemical measurements confirm an unexpectedly strong coupling between the 2,7-substituents in our pyrene derivatives.
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Affiliation(s)
- Julia Merz
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Julian Fink
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Hamad H Al Mamari
- Department of Chemistry, College of Science, Sultan Qaboos University, PO Box 36, Al Khoud, 123, Muscat, Sultanate of Oman
| | - Sabine Lorenzen
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Martin Haehnel
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Antonius Eichhorn
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Michael Moos
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Marco Holzapfel
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Christoph Lambert
- Institut für Organische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Andreas Steffen
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Lei Ji
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry, & Catalysis with Boron (ICB), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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17
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Morishita K, Okamoto Y, Murayama S, Usui K, Ohashi E, Hirai G, Aoki I, Karasawa S. Water-Proton Relaxivities of Radical Nanoparticles Self-Assembled via Hydration or Dehydration Processes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7810-7817. [PMID: 28678510 DOI: 10.1021/acs.langmuir.7b01126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Nanoparticles capable of accumulating in tumor tissues are promising materials for tumor imaging and therapy. In this study, two radical nanoparticles (RNPs), denoted as 1 and 2, composed of self-assembled ureabenzene derivatives possessing one or two amphiphilic side chains were demonstrated to be candidates for metal-free functional magnetic resonance imaging (MRI) contrast agents (CAs). Because of the self-assembly behavior of 1 and 2 in a saline solution, spherical RNPs of sizes ∼50-90 and ∼30-100 nm were detected. In a highly concentrated solution, RNP 1 showed considerably small water-proton relaxivity values (r1 and r2), whereas RNP 2 showed an r1 value that was around 5 times larger than that of RNP 1. These distinct r1 values might be caused by differences in the self-assembly behavior by a hydration or dehydration process. In vivo studies with RNP 2 demonstrated a slightly enhanced T1-weighted image in mice, suggesting that the RNPs can potentially be used as metal-free functional MRI CAs for T1-weighted imaging.
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Affiliation(s)
- Kosuke Morishita
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Yuna Okamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Shuhei Murayama
- Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences (NIRS), Group of Quantum-State Controlled MRI, QST , Anagawa 4-9-1, Inage, Chiba-city 263-8555, Japan
| | - Kazuteru Usui
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Eriko Ohashi
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Go Hirai
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
| | - Ichio Aoki
- Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences (NIRS), Group of Quantum-State Controlled MRI, QST , Anagawa 4-9-1, Inage, Chiba-city 263-8555, Japan
| | - Satoru Karasawa
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka 812-8582, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan
- Showa Pharmaceutical University , 3-3165 Higashi-Tamagawagakuen, Machida 194-8543, Japan
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18
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Morishita K, Murayama S, Araki T, Aoki I, Karasawa S. Thermal- and pH-Dependent Size Variable Radical Nanoparticles and Its Water Proton Relaxivity for Metal-Free MRI Functional Contrast Agents. J Org Chem 2016; 81:8351-62. [PMID: 27541011 DOI: 10.1021/acs.joc.6b01509] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
For development of the metal-free MRI contrast agents, we prepared the supra-molecular organic radical, TEMPO-UBD, carrying TEMPO radical, as well as the urea, alkyl group, and phenyl ring, which demonstrate self-assembly behaviors using noncovalent bonds in an aqueous solution. In addition, TEMPO-UBD has the tertiary amine and the oligoethylene glycol chains (OEGs) for the function of pH and thermal responsiveness. By dynamic light scattering and transmission electron microscopy imaging, the resulting self-assembly was seen to form the spherical nanoparticles 10-150 nm in size. On heating, interestingly, the nanoparticles showed a lower critical solution temperature (LCST) behavior having two-step variation. This double-LCST behavior is the first such example among the supra-molecules. To evaluate of the ability as MRI contrast agents, the values of proton ((1)H) longitudinal relaxivity (r1) were determined using MRI apparatus. In conditions below and above CAC at pH 7.0, the distinguishable r1 values were estimated to be 0.17 and 0.21 mM(-1) s(1), indicating the suppression of fast tumbling motion of TEMPO moiety in a nanoparticle. Furthermore, r1 values became larger in the order of pH 7.0 > 9.0 > 5.0. Those thermal and pH dependencies indicated the possibility of metal-fee MRI functional contrast agents in the future.
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Affiliation(s)
- Kosuke Morishita
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Shuhei Murayama
- Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences (NIRS), QST , Anagawa 4-9-1, Inage, Chiba-city 263-8555, Japan
| | - Takeru Araki
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Ichio Aoki
- Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences (NIRS), QST , Anagawa 4-9-1, Inage, Chiba-city 263-8555, Japan
| | - Satoru Karasawa
- Graduate School of Pharmaceutical Sciences, Kyushu University , 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.,PRESTO, Japan Science and Technology Agency , Kawaguchi 332-0012, Japan
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