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Langlois A, St Onge PBJ, Karsenti PL, Younus A, Rondeau-Gagné S. Modulating the Photophysical Properties and Electron Transfer Rates in Diketopyrrolopyrrole-Based Coordination Polymers. J Phys Chem B 2021; 125:9579-9587. [PMID: 34402620 DOI: 10.1021/acs.jpcb.1c03177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular self-assembly through noncovalent interactions is a particularly efficient approach to fine-tune the optoelectronic and photophysical properties of electroactive materials. In metal-ligand coordination polymers, the final properties of the assemblies are directly related to the nature of the metal-ligand interaction. To probe for such influence on the photophysical properties of electroactive materials, a series of coordination polymers based on a well-known organic dye, diketopyrrolopyrrole, was prepared through coordination of a terpyridine-containing monomer with various metal sources, including iron, cobalt, zinc, and manganese. The resulting supramolecular polymers were characterized through multiple techniques, including UV-vis and fluorescence spectroscopy, time-correlated single-photon counting, and femtosecond transient absorption spectroscopy to reveal the impact of the metal source on the final photophysical properties of coordination polymers. As expected, important variations were found between different coordination polymers in terms of absorption, fluorescence kinetics, and electron transfer rate. While iron and cobalt-containing polymers showed ultrafast electrons transfer rates, assemblies from manganese were shown to be much less efficient, confirming the importance of metal centers. This detailed fundamental study unravels some important relationships between metal-ligand interactions, supramolecular self-assembly, and photophysical properties, ultimately leading to new avenues for the design of functional polymers based on organic dyes.
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Affiliation(s)
- Adam Langlois
- Department of Chemistry and Biochemistry, Advanced Materials Centre of Research (AMCORe), University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4
| | - P Blake J St Onge
- Department of Chemistry and Biochemistry, Advanced Materials Centre of Research (AMCORe), University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4
| | | | - Aneeta Younus
- Department of Chemistry and Biochemistry, Advanced Materials Centre of Research (AMCORe), University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4
| | - Simon Rondeau-Gagné
- Department of Chemistry and Biochemistry, Advanced Materials Centre of Research (AMCORe), University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4
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Abhervé A, Mastropasqua Talamo M, Boi S, Poupard V, Gendron F, Guennic BL, Avarvari N, Pop F. Thiophene-Bipyridine Appended Diketopyrrolopyrrole Ligands and Platinum(II) Complexes. Inorg Chem 2021; 60:7351-7363. [PMID: 33913705 DOI: 10.1021/acs.inorgchem.1c00534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Straightforward palladium(II) catalyzed direct cross-coupling reaction between decyl, (S)-2-methyl-butyl, and dodecyl N-substituted diketopyrrolopyrrole thiophene (DPPT), including a 3-methoxy-thiophene derivative, and 6-bromo-2,2'-bipyridine afforded a series of mono- and bis-bipyridine substituted DPPT ligands 1-3. Complexation reactions with PtCl2(DMSO)2 provided ortho-metalated platinum(II) complexes 1-Pt and 2-Pt, together with the N^N^O complex 3d-Pt(N^N^O) resulted from the O-Me activation of the intermediary complex 3d-Pt(N^N). The ligand 1b and the mononuclear complexes 1a-Pt and 1b-Pt have been structurally characterized by single crystal X-ray structure, evidencing the establishment of numerous intermolecular π-π interactions in the solid state. Moreover, in the crystal structure of the model complex DMTB-Pt(N^N^O) (DMTB = 3,4-dimethoxy-(2,2'-bipyridine)) the chelating tridentate N^N^O mode is clearly evidenced. The chiral ligand 1b and its mononuclear complex 1b-Pt do not show any CD signal in solution, but they are CD active in the solid state with bisignate bands in the low energy region, opposite in sign between the ligand and the complex, suggesting helical supramolecular arrangement of the dpp chromophore in the solid state. Photophysical investigations demonstrate that all of the ligands are fluorescent with high quantum yields, while the emission is quenched for the complexes, except partially in 3d-Pt(N^N), very likely through an intersystem crossing mechanism promoted by the heavy metal. Density functional theory calculations support the differences observed between the absorption properties of the ligands, ortho- and non-ortho-metalated complexes. The highly fluorescent bipyridine ligands reported herein open the way toward multifunctional transition metal complexes and their use in organic electronics.
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Affiliation(s)
- Alexandre Abhervé
- MOLTECH-Anjou, UMR 6200, CNRS, Université Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
| | | | - Sara Boi
- MOLTECH-Anjou, UMR 6200, CNRS, Université Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
| | - Vincent Poupard
- MOLTECH-Anjou, UMR 6200, CNRS, Université Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
| | - Frédéric Gendron
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France
| | - Narcis Avarvari
- MOLTECH-Anjou, UMR 6200, CNRS, Université Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
| | - Flavia Pop
- MOLTECH-Anjou, UMR 6200, CNRS, Université Angers, 2 bd Lavoisier, 49045 Angers Cedex, France
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Wang BL, Jiang C. DNA G-Quadruplexes as a Template To Direct Cyanine Dyes To Form H-Aggregates and Application of the Self-Assembly Entity as a New G-Quadruplexes Ligands Screening Platform. Anal Chem 2019; 91:1541-1547. [DOI: 10.1021/acs.analchem.8b04677] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Bo-Lin Wang
- College of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Chuang Jiang
- College of Chemistry, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
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Nakamura M, Jomura A, Takada T, Yamana K. Photocurrent Enhancement in DNA-Scaffolded Chromophore-Aggregate-Functionalized Systems Containing Multiple Types of Chromophores. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201700152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mitsunobu Nakamura
- Department of Applied Chemistry; University of Hyogo; 2167 Shosha, Himeji Hyogo 671-2280 Japan
| | - Ayumi Jomura
- Department of Applied Chemistry; University of Hyogo; 2167 Shosha, Himeji Hyogo 671-2280 Japan
| | - Tadao Takada
- Department of Applied Chemistry; University of Hyogo; 2167 Shosha, Himeji Hyogo 671-2280 Japan
| | - Kazushige Yamana
- Department of Applied Chemistry; University of Hyogo; 2167 Shosha, Himeji Hyogo 671-2280 Japan
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Nakamura M, Tsuto K, Jomura A, Takada T, Yamana K. Donor-Acceptor Heterojunction Configurations Based on DNA-Multichromophore Arrays. Chemistry 2015; 21:11788-92. [DOI: 10.1002/chem.201501955] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 12/22/2022]
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