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Sensitization of NO‐Releasing Ruthenium Complexes to Visible Light |
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| Authors: | Tobias Becker Dr Stephan Kupfer Martin Wolfram Dr Helmar Görls Prof?Dr Ulrich S Schubert Prof?Dr Eric V Anslyn Prof?Dr Benjamin Dietzek Prof?Dr Stefanie Gräfe Prof?Dr Alexander Schiller |
| Institution: | 1. Max Planck Institute for Chemical Ecology, Department of Bioorganic Chemistry, Hans‐Kn?ll‐Stra?e 8, 07745 Jena (Germany);2. Institute for Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena (Germany);3. Abbe Center of Photonics, Friedrich Schiller University Jena (Germany);4. Department of Chemistry, Center for Evolutionary Chemical Biology, Copenhagen University, Universitetsparken 5, 2100 Copenhagen (Denmark);5. Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstra?e 8, 07743 Jena (Germany);6. Institute for Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstra?e 10, 07743 Jena (Germany);7. Jena Center for Soft Matter, Friedrich Schiller University Jena, Philosophenweg 7, D‐07743 Jena (Germany);8. Department of Chemistry and Biochemistry, University of Texas at Austin, Texas 78712 (USA) |
| Abstract: | We report a combined spectroscopical–theoretical investigation on the photosensitization of transition metal nitrosyl complexes. For this purpose, ruthenium nitrosyl complexes based on tetradentate biscarboxamide ligands were synthesized. A crystal structure analysis of a lithium‐based ligand intermediate is described. The Ru complexes have been characterized regarding their photophysical and nitric oxide (NO) releasing properties. Quantum chemical calculations have been performed to unravel the influence of the biscarboxamide ligand frame with respect to the molecular electronic properties of the NO‐releasing pathway. A quantitative measure for the ligand design within photosensitized Ru complexes is introduced and evaluated spectroscopically and theoretically by using time‐dependent density functional theory. |
| Keywords: | ligand design NO release photosensitization ruthenium complexes TDDFT calculation |