Revealing Hot and Long-Lived Metastable Spin States in the Photoinduced Switching of Solvated Metallogrid Complexes with Femtosecond Optical and X-ray Spectroscopies
| Autor: | Maria Naumova, Jie Meng, Jianxin Zhang, Peter Zalden, David J. Gosztola, Franc Meyer, Katharina Kubicek, Christian Bressler, Stefano Checchia, Mohamed Abdellah, Matthias Bauer, Michael Wulff, Dirk Schwarzer, Martin Jarenmark, Edoardo Domenichini, Max Latevi Lawson Daku, Sophie E. Canton, Weihua Lin, Alexander Britz, Frederico A. Lima, Joanne W. L. Wong, Wojciech Gawelda, Aleksandr Kalinko, Pierre-Adrien Mante, Serhiy Demeshko, Sol Alvarez Gutierrez, Vadim Murzin, Dmitry Khakhulin, Andreas Galler, Huifang Geng, Kaibo Zheng, Victoria Kabanova, Jennifer Zimara, Mykola Biednov |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Spin states Kinetics 02 engineering and technology Ligands 010402 general chemistry Quantum mechanics Kinetics 01 natural sciences Metal Spin chemistry Metastability X-rays ddc:530 General Materials Science Physical and Theoretical Chemistry Oscillation 021001 nanoscience & nanotechnology 3. Good health 0104 chemical sciences Chemical physics visual_art Femtosecond visual_art.visual_art_medium Absorption (chemistry) 0210 nano-technology |
| Zdroj: | The journal of physical chemistry letters 11, 2133-2141 (2020). doi:10.1021/acs.jpclett.9b03883 Naumova, M A, Kalinko, A, Wong, J W L, Abdellah, M, Geng, H, Domenichini, E, Meng, J, Gutierrez Alvarez, S L, Mante, P-A, Lin, W, Zalden, P, Galler, A, Lima, F, Kubicek, K, Biednov, M, Britz, A, Checchia, S, Kabanova, V, Wulff, M, Zimara, J, Schwarzer, D, Demeshko, S, Murzin, V, Gosztola, D, Jarenmark, M, Zhang, J, Bauer, M, Lawson Daku, M L, Gawelda, W, Khakhulin, D, Bressler, C, Meyer, F, Zheng, K & Canton, S E 2020, ' Revealing Hot and Long-Lived Metastable Spin States in the Photoinduced Switching of Solvated Metallogrid Complexes with Femtosecond Optical and X-ray Spectroscopies ', Journal of Physical Chemistry Letters, vol. 11, pp. 2133-2141 . https://doi.org/10.1021/acs.jpclett.9b03883 |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.9b03883 |
| Popis: | An atomistic understanding of the photoinduced spin-state switching (PSS) within polynuclear systems of d4-d7 transition metal ion complexes is required for their rational integration into light-driven reactions of chemical and biological interest. However, in contrast to mononuclear systems, the multidimensional dynamics of the PSS in solvated molecular arrays have not yet been elucidated due to the expected complications associated with the connectivity between the metal centers and the strong interactions with the surroundings. In this work, the PSS in a solvated triiron(II) metallogrid complex is characterized using transient optical absorption and X-ray emission spectroscopies on the femtosecond time scale. The complementary measurements reveal the photoinduced creation of energy-rich (hot) and long-lived quintet states, whose dynamics differ critically from their mononuclear congeners. This finding opens major prospects for developing novel schemes in solution-phase spin chemistry that are driven by the dynamic PSS process in compact oligometallic arrays. |
| Databáze: | OpenAIRE |
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