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Mendes Marinho S, Ha-Thi MH, Pham VT, Quaranta A, Pino T, Lefumeux C, Chamaillé T, Leibl W, Aukauloo A. Time-Resolved Interception of Multiple-Charge Accumulation in a Sensitizer-Acceptor Dyad. Angew Chem Int Ed Engl 2017; 56:15936-15940. [PMID: 29139597 DOI: 10.1002/anie.201706564] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/11/2017] [Indexed: 12/22/2022]
Abstract
Biomimetic models that contain elements of photosynthesis are fundamental in the development of synthetic systems that can use sunlight to produce fuel. The critical task consists of running several rounds of light-induced charge separation, which is required to accumulate enough redox equivalents at the catalytic sites for the target chemistry to occur. Long-lived first charge-separated state and distinct electronic signatures for the sequential charge accumulated species are essential features to be able to track these events on a spectroscopic ground. Herein, we use a double-excitation nanosecond pump-pump-probe experiment to interrogate two successive rounds of photo-induced electron transfer on a molecular dyad containing a naphthalene diimide (NDI) linked to a [Ru(bpy)3 ]2+ (bpy=bipyridine) chromophore by using a reversible electron donor. We report an unprecedented long-lived two-electron charge accumulation (t=200 μs).
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Affiliation(s)
- Stéphanie Mendes Marinho
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris Sud, CNRS, 91405, Orsay Cedex, France
| | - Minh-Huong Ha-Thi
- Institut des Sciences Moléculaire d'Orsay (ISMO), CNRS, Univ Paris Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Van-Thai Pham
- Institut des Sciences Moléculaire d'Orsay (ISMO), CNRS, Univ Paris Sud, Université Paris-Saclay, 91405, Orsay, France.,Present address: MAX IV Laboratory, Lund University, P.O. Box 118, 22100, Lund, Sweden.,Center for Quantum Electronics, Institute of Physics, Vietnam Academy of Science and Technology, P.O. Box 429, Boho, 10000, Hanoi, Vietnam
| | - Annamaria Quaranta
- Institute for integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, UMR 9198, 91191, Gif-sur-Yvette, France
| | - Thomas Pino
- Institut des Sciences Moléculaire d'Orsay (ISMO), CNRS, Univ Paris Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Christophe Lefumeux
- Institut des Sciences Moléculaire d'Orsay (ISMO), CNRS, Univ Paris Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Thierry Chamaillé
- Institut des Sciences Moléculaire d'Orsay (ISMO), CNRS, Univ Paris Sud, Université Paris-Saclay, 91405, Orsay, France
| | - Winfried Leibl
- Institute for integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, UMR 9198, 91191, Gif-sur-Yvette, France
| | - Ally Aukauloo
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris Sud, CNRS, 91405, Orsay Cedex, France.,Institute for integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, UMR 9198, 91191, Gif-sur-Yvette, France
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