Pump-Probe Fragmentation Action Spectroscopy: A Powerful Tool to Unravel Light-Induced Processes in Molecular Photocatalysts
| Autor: | Sven Rau, Christoph Riehn, Johannes Lang, Dimitri Imanbaew, Maxim F. Gelin, Michael G. Pfeffer, Simon Kaufhold |
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| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Chemistry Electrospray ionization Supramolecular chemistry Nanotechnology General Medicine General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Electron transfer Photocatalysis Fragmentation - action Ion trap Spectroscopy Ultrashort pulse |
| Zdroj: | Angewandte Chemie International Edition. 56:5471-5474 |
| ISSN: | 1433-7851 |
| DOI: | 10.1002/anie.201612302 |
| Popis: | We present a proof of concept that ultrafast dynamics combined with photochemical stability information of molecular photocatalysts can be acquired by electrospray ionization mass spectrometry combined with time-resolved femtosecond laser spectroscopy in an ion trap. This pump-probe "fragmentation action spectroscopy" gives straightforward access to information that usually requires high purity compounds and great experimental efforts. Results of gas-phase studies on the electronic dynamics of two supramolecular photocatalysts compare well to previous findings in solution and give further evidence for a directed electron transfer, a key process for photocatalytic hydrogen generation. |
| Databáze: | OpenAIRE |
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