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Kupfer S, Wächtler M, Guthmuller J. Light‐Driven Multi‐Charge Separation in a Push‐Pull Ruthenium‐based Photosensitizer – Assessed by RASSCF and TDDFT Simulations. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Stephan Kupfer
- Friedrich Schiller Universitat Jena Chemisch Geowissenschaftliche Fakultat Institute of Physical Chemistry Helmholtzweg 1 07743 Jena GERMANY
| | - Maria Wächtler
- Leibniz Institute of Photonic Technology: Leibniz-Institut fur Photonische Technologien Functional Interfaces GERMANY
| | - Julien Guthmuller
- Gdansk University of Technology: Politechnika Gdanska Institute of Physics and Computer Science POLAND
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2
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Kaufmann M, Müller C, Cullen AA, Brandon MP, Dietzek B, Pryce MT. Photophysics of Ruthenium(II) Complexes with Thiazole π-Extended Dipyridophenazine Ligands. Inorg Chem 2020; 60:760-773. [PMID: 33356204 DOI: 10.1021/acs.inorgchem.0c02765] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Transition-metal-based donor-acceptor systems can produce long-lived excited charge-transfer states by visible-light irradiation. The novel ruthenium(II) polypyridyl type complexes Ru1 and Ru2 based on the dipyridophenazine ligand (L0) directly linked to 4-hydroxythiazoles of different donor strengths were synthesized and photophysically characterized. The excited-state dynamics were investigated by femtosecond-to-nanosecond transient absorption and nanosecond emission spectroscopy complemented by time-dependent density functional theory calculations. These results indicate that photoexcitation in the visible region leads to the population of both metal-to-ligand charge-transfer (1MLCT) and thiazole (tz)-induced intraligand charge-transfer (1ILCT) states. Thus, the excited-state dynamics is described by two excited-state branches, namely, the population of (i) a comparably short-lived phenazine-centered 3MLCT state (τ ≈ 150-400 ps) and (ii) a long-lived 3ILCT state (τ ≈ 40-300 ns) with excess charge density localized on the phenazine and tz moieties. Notably, the ruthenium(II) complexes feature long-lived dual emission with lifetimes in the ranges τEm,1 ≈ 40-300 ns and τEm,2 ≈ 100-200 ns, which are attributed to emission from the 3ILCT and 3MLCT manifolds, respectively.
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Affiliation(s)
- Martin Kaufmann
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Carolin Müller
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, Jena 07743, Germany.,Research Department Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, Jena 07745, Germany
| | - Aoibhin A Cullen
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Michael P Brandon
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
| | - Benjamin Dietzek
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, Jena 07743, Germany.,Research Department Functional Interfaces, Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, Jena 07745, Germany.,Center for Energy and Environmental Chemistry Jena, Friedrich Schiller University Jena, Lessingstraße 8, Jena 07743, Germany
| | - Mary T Pryce
- School of Chemical Sciences, National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
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3
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Unraveling relation between nonlinear absorption and structure of push pull ornamented anthracenyl chalcone derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Hupfer ML, Kaufmann M, Preiß J, Weiß D, Beckert R, Dietzek B, Presselt M. Assembly of T-Shaped Amphiphilic Thiazoles on the Air-Water Interface: Impact of Polar Chromophore Moieties, as Well as Dipolarity and π-Extension of the Chromophore on the Supramolecular Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2587-2600. [PMID: 30688466 DOI: 10.1021/acs.langmuir.8b04063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The supramolecular structure essentially determines the properties of organic thin films. In this work, we systematically investigate the influence of the chromophore on the supramolecular structure formation at air-water interfaces by means of the Langmuir-Blodgett technique. Therefore, we focus on the recently introduced class of double-anchor T-shaped amphiphilic dyes, namely, 4-hydroxy-thiazole chromophores that are centrally equipped with an amphiphilicity-inducing hexanoic acid. The thiazoles contain hydrophilic subphase-anchor groups in the 2-position (4- N, N-dimethylaminophenyl (Am), 2-pyridyl (Py), and 4-nitrophenyl (Ni)), whereas the chromophores are systematically extended in the 5-position with various substituents. The combination of the Langmuir technique with online fluorescence measurements revealed that the π-π interactions that are pronounced in the case of 4-methoxybiphenyl derivatives yield the most distinct supramolecular structures. Whereas in the case of Py and Ni derivatives ordered J-type supramolecular structures in microdomains are formed, the Am derivative forms ordered supramolecular structures that are more homogeneous, which are, however, not stabilized by J-type dipolar interactions. Because of the synergetic π-π and dipolar stabilizations, the Ni derivative bearing the 4-methoxybiphenyl unit forms exceptionally stable quasi-two-dimensional Langmuir monolayers reaching very high surface pressures beyond 60 mN/m without any sign of disturbance of the Langmuir monolayer.
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Affiliation(s)
- Maximilian L Hupfer
- Institute of Physical Chemistry , Friedrich Schiller University Jena , Helmholtzweg 4 , 07743 Jena , Germany
- Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Str. 9 , 07745 Jena , Germany
| | - Martin Kaufmann
- Institute of Physical Chemistry , Friedrich Schiller University Jena , Helmholtzweg 4 , 07743 Jena , Germany
- Institute of Organic and Macromolecular Chemistry , Friedrich Schiller University Jena , Humboldstraße 10 , 07743 Jena , Germany
| | - Julia Preiß
- Institute of Physical Chemistry , Friedrich Schiller University Jena , Helmholtzweg 4 , 07743 Jena , Germany
- Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Str. 9 , 07745 Jena , Germany
| | - Dieter Weiß
- Institute of Organic and Macromolecular Chemistry , Friedrich Schiller University Jena , Humboldstraße 10 , 07743 Jena , Germany
| | - Rainer Beckert
- Institute of Organic and Macromolecular Chemistry , Friedrich Schiller University Jena , Humboldstraße 10 , 07743 Jena , Germany
| | - Benjamin Dietzek
- Institute of Physical Chemistry , Friedrich Schiller University Jena , Helmholtzweg 4 , 07743 Jena , Germany
- Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Str. 9 , 07745 Jena , Germany
| | - Martin Presselt
- Institute of Physical Chemistry , Friedrich Schiller University Jena , Helmholtzweg 4 , 07743 Jena , Germany
- Leibniz Institute of Photonic Technology (IPHT) , Albert-Einstein-Str. 9 , 07745 Jena , Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) , Friedrich Schiller University Jena , Philosophenweg 7a , 07743 Jena , Germany
- SciClus GmbH & Co. KG , Moritz-von-Rohr-Str. 1a , 07745 Jena , Germany
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6
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Schramm S, Weiß D. Fluorescent heterocycles: Recent trends and new developments. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Kaufmann M, Hupfer M, Sachse T, Herrmann-Westendorf F, Weiß D, Dietzek B, Beckert R, Presselt M. Introducing double polar heads to highly fluorescent Thiazoles: Influence on supramolecular structures and photonic properties. J Colloid Interface Sci 2018; 526:410-418. [DOI: 10.1016/j.jcis.2018.04.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/27/2018] [Accepted: 04/27/2018] [Indexed: 10/17/2022]
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Murai T, Yamaguchi K, Hayano T, Maruyama T, Kawai K, Kawakami H, Yashita A. Synthesis and Photophysical Properties of 5-N-Arylamino-4-methylthiazoles Obtained from Direct C–H Arylations and Buchwald–Hartwig Aminations of 4-Methylthiazole. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00128] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Toshiaki Murai
- Department of Chemistry
and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kirara Yamaguchi
- Department of Chemistry
and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Teppei Hayano
- Department of Chemistry
and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Toshifumi Maruyama
- Department of Chemistry
and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Koji Kawai
- Miyoshi Oil & Fat Co., Ltd., 4-66-1 Horikiri, Katsushika-Ku, Tokyo 124-8510, Japan
| | - Hayato Kawakami
- Miyoshi Oil & Fat Co., Ltd., 4-66-1 Horikiri, Katsushika-Ku, Tokyo 124-8510, Japan
| | - Akira Yashita
- Miyoshi Oil & Fat Co., Ltd., 4-66-1 Horikiri, Katsushika-Ku, Tokyo 124-8510, Japan
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Gampe DM, Hänsch VG, Schramm S, Menzel R, Weiß D, Beckert R. Mixing Chromophores: Donor-Acceptor Dyes with Low-Lying LUMOs and Narrow Band Gaps by Connecting 4-Alkoxythiazoles and Azaacenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601521] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dominique Mario Gampe
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
| | - Veit Georg Hänsch
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
| | - Stefan Schramm
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
- NYU Abu Dhabi; Saadiyat Campus; Experimental Research Building (C1); P. O. Box 129188 Abu Dhabi United Arab Emirates
| | - Roberto Menzel
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
- Sartorius Stedim Biotech; August-Spindler-Strasse 11 37079 Göttingen Germany
| | - Dieter Weiß
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
| | - Rainer Beckert
- Friedrich Schiller University Jena; Institute of Organic and Macromolecular Chemistry; Humboldtstraße 10 07743 Jena Germany
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Gampe D, Nöller F, Hänsch V, Schramm S, Darsen A, Habenicht S, Ehrhardt S, Weiß D, Görls H, Beckert R. Surprising characteristics of D–A-type functional dyes by introducing 4-alkoxythiazoles as the donor-unit. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Habenicht SH, Schramm S, Zhu M, Freund RRA, Langenstück T, Strathausen R, Weiß D, Biskup C, Beckert R. π-Extension of a 4-ethoxy-1,3-thiazole via aryl alkyne cross coupling: synthesis and exploration of the electronic structure. Photochem Photobiol Sci 2015; 14:2097-107. [DOI: 10.1039/c5pp00219b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
π-Extension of 4-ethoxy-1,3-thiazolesviaaryl coupling resulted in a twofold increase of molar extinction coefficients and larger Stokes’ shifts.
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Affiliation(s)
- Stefanie H. Habenicht
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Stefan Schramm
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Mingming Zhu
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Robert R. A. Freund
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Teresa Langenstück
- Biomolecular Photonics Group
- Jena University Hospital
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Rainer Strathausen
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
- Biomolecular Photonics Group
| | - Dieter Weiß
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Christoph Biskup
- Biomolecular Photonics Group
- Jena University Hospital
- Friedrich Schiller University
- 07743 Jena
- Germany
| | - Rainer Beckert
- Institute of Organic Chemistry and Macromolecular Chemistry
- Friedrich Schiller University
- 07743 Jena
- Germany
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