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Photocatalytic Reduction of Nicotinamide Co-factor by Perylene Sensitized RhIII Complexes** |
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| Authors: | Jannik Brückmann Dr Carolin Müller Ilse Friedländer Dr Alexander K Mengele Prof Kalina Peneva Prof Benjamin Dietzek-Ivan?i? Prof Sven Rau |
| Institution: | 1. Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
These authors contributed equally.;2. Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany;3. Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany;4. Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany |
| Abstract: | The ambitious goal of artificial photosynthesis is to develop active systems that mimic nature and use light to split water into hydrogen and oxygen. Intramolecular design concepts are particularly promising. Herein, we firstly present an intramolecular photocatalyst integrating a perylene-based light-harvesting moiety and a catalytic rhodium center ( RhIIIphenPer ). The excited-state dynamics were investigated by means of steady-state and time-resolved absorption and emission spectroscopy. The studies reveal that photoexcitation of RhIIIphenPer yields the formation of a charge-separated intermediate, namely RhIIphenPer ? + , that results in a catalytically active species in the presence of protons. |
| Keywords: | charge separation perylene photocatalysis rhodium catalyst time-resolved spectroscopy |