--- _id: '40982' abstract: - lang: eng text: Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light induced proton reduction systems. For a more sustainable future, development of competitive base metal dyads is mandatory. However, the electron transfer mechanisms from the photosensitizer to the proton reduction catalyst in base metal dyads remain so far unexplored. We study a Fe-Co dyad that exhibits photocatalytic H2 production activity using femtosecond X-ray emission spectroscopy, complemented by ultrafast optical spectroscopy and theoretical time-dependent DFT calculations, to understand the electronic and structural dynamics after photoexcitation and during the subsequent charge transfer process from the FeII photosensitizer to the cobaloxime catalyst. Using this novel approach, the simultaneous measurement of the transient Kalpha X-ray emission at the iron and cobalt K-edges in a two-colour experiment is enabled making it possible to correlate the excited state dynamics to the electron transfer processes. The methodology, therefore, provides a clear and direct spectroscopic evidence of the Fe->Co electron transfer responsible for the proton reduction activity. author: - first_name: Michał full_name: Nowakowski, Michał id: '78878' last_name: Nowakowski orcid: 0000-0002-3734-7011 - first_name: Marina full_name: Huber-Gedert, Marina id: '38352' last_name: Huber-Gedert - first_name: Hossam full_name: Elgabarty, Hossam id: '60250' last_name: Elgabarty orcid: 0000-0002-4945-1481 - first_name: Jacek full_name: Kubicki, Jacek last_name: Kubicki - first_name: Ahmet full_name: Kertem, Ahmet last_name: Kertem - first_name: Natalia full_name: Lindner, Natalia last_name: Lindner - first_name: Dimitry full_name: Khakhulin, Dimitry last_name: Khakhulin - first_name: Frederico Alves full_name: Lima, Frederico Alves last_name: Lima - first_name: Tae-Kyu full_name: Choi, Tae-Kyu last_name: Choi - first_name: Mykola full_name: Biednov, Mykola last_name: Biednov - first_name: Natalia full_name: Piergies, Natalia last_name: Piergies - first_name: Peter full_name: Zalden, Peter last_name: Zalden - first_name: Katerina full_name: Kubicek, Katerina last_name: Kubicek - first_name: Angel full_name: Rodriguez-Fernandez, Angel last_name: Rodriguez-Fernandez - first_name: Mohammad Alaraby full_name: Salem, Mohammad Alaraby last_name: Salem - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: Wojciech full_name: Gawelda, Wojciech last_name: Gawelda - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 citation: ama: Nowakowski M, Huber-Gedert M, Elgabarty H, et al. Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad. arxiv. Published online 2023. apa: Nowakowski, M., Huber-Gedert, M., Elgabarty, H., Kubicki, J., Kertem, A., Lindner, N., Khakhulin, D., Lima, F. A., Choi, T.-K., Biednov, M., Piergies, N., Zalden, P., Kubicek, K., Rodriguez-Fernandez, A., Salem, M. A., Kühne, T., Gawelda, W., & Bauer, M. (2023). Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad. In arxiv. bibtex: '@article{Nowakowski_Huber-Gedert_Elgabarty_Kubicki_Kertem_Lindner_Khakhulin_Lima_Choi_Biednov_et al._2023, title={Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad}, journal={arxiv}, author={Nowakowski, Michał and Huber-Gedert, Marina and Elgabarty, Hossam and Kubicki, Jacek and Kertem, Ahmet and Lindner, Natalia and Khakhulin, Dimitry and Lima, Frederico Alves and Choi, Tae-Kyu and Biednov, Mykola and et al.}, year={2023} }' chicago: Nowakowski, Michał, Marina Huber-Gedert, Hossam Elgabarty, Jacek Kubicki, Ahmet Kertem, Natalia Lindner, Dimitry Khakhulin, et al. “Ultrafast Two-Colour X-Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Arxiv, 2023. ieee: M. Nowakowski et al., “Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad,” arxiv. 2023. mla: Nowakowski, Michał, et al. “Ultrafast Two-Colour X-Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.” Arxiv, 2023. short: M. Nowakowski, M. Huber-Gedert, H. Elgabarty, J. Kubicki, A. Kertem, N. Lindner, D. Khakhulin, F.A. Lima, T.-K. Choi, M. Biednov, N. Piergies, P. Zalden, K. Kubicek, A. Rodriguez-Fernandez, M.A. Salem, T. Kühne, W. Gawelda, M. Bauer, Arxiv (2023). date_created: 2023-01-30T16:08:46Z date_updated: 2023-08-09T08:58:46Z department: - _id: '35' - _id: '306' language: - iso: eng publication: arxiv status: public title: Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad type: preprint user_id: '48467' year: '2023' ... --- _id: '30216' author: - first_name: Marina full_name: Huber-Gedert, Marina id: '38352' last_name: Huber-Gedert - first_name: Michał full_name: Nowakowski, Michał id: '78878' last_name: Nowakowski orcid: 0000-0002-3734-7011 - first_name: Ahmet full_name: Kertmen, Ahmet last_name: Kertmen - first_name: Lukas full_name: Burkhardt, Lukas id: '54038' last_name: Burkhardt orcid: 0000-0003-0747-9811 - first_name: Natalia full_name: Lindner, Natalia last_name: Lindner - first_name: Roland full_name: Schoch, Roland last_name: Schoch - first_name: Regine full_name: Herbst‐Irmer, Regine last_name: Herbst‐Irmer - first_name: Adam full_name: Neuba, Adam last_name: Neuba - first_name: Lennart full_name: Schmitz, Lennart last_name: Schmitz - first_name: Tae‐Kyu full_name: Choi, Tae‐Kyu last_name: Choi - first_name: Jacek full_name: Kubicki, Jacek last_name: Kubicki - first_name: Wojciech full_name: Gawelda, Wojciech last_name: Gawelda - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 citation: ama: Huber-Gedert M, Nowakowski M, Kertmen A, et al. Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad. Chemistry – A European Journal. 2021;27(38):9905-9918. doi:10.1002/chem.202100766 apa: Huber-Gedert, M., Nowakowski, M., Kertmen, A., Burkhardt, L., Lindner, N., Schoch, R., Herbst‐Irmer, R., Neuba, A., Schmitz, L., Choi, T., Kubicki, J., Gawelda, W., & Bauer, M. (2021). Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad. Chemistry – A European Journal, 27(38), 9905–9918. https://doi.org/10.1002/chem.202100766 bibtex: '@article{Huber-Gedert_Nowakowski_Kertmen_Burkhardt_Lindner_Schoch_Herbst‐Irmer_Neuba_Schmitz_Choi_et al._2021, title={Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad}, volume={27}, DOI={10.1002/chem.202100766}, number={38}, journal={Chemistry – A European Journal}, publisher={Wiley}, author={Huber-Gedert, Marina and Nowakowski, Michał and Kertmen, Ahmet and Burkhardt, Lukas and Lindner, Natalia and Schoch, Roland and Herbst‐Irmer, Regine and Neuba, Adam and Schmitz, Lennart and Choi, Tae‐Kyu and et al.}, year={2021}, pages={9905–9918} }' chicago: 'Huber-Gedert, Marina, Michał Nowakowski, Ahmet Kertmen, Lukas Burkhardt, Natalia Lindner, Roland Schoch, Regine Herbst‐Irmer, et al. “Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad.” Chemistry – A European Journal 27, no. 38 (2021): 9905–18. https://doi.org/10.1002/chem.202100766.' ieee: 'M. Huber-Gedert et al., “Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad,” Chemistry – A European Journal, vol. 27, no. 38, pp. 9905–9918, 2021, doi: 10.1002/chem.202100766.' mla: Huber-Gedert, Marina, et al. “Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad.” Chemistry – A European Journal, vol. 27, no. 38, Wiley, 2021, pp. 9905–18, doi:10.1002/chem.202100766. short: M. Huber-Gedert, M. Nowakowski, A. Kertmen, L. Burkhardt, N. Lindner, R. Schoch, R. Herbst‐Irmer, A. Neuba, L. Schmitz, T. Choi, J. Kubicki, W. Gawelda, M. Bauer, Chemistry – A European Journal 27 (2021) 9905–9918. date_created: 2022-03-09T08:20:58Z date_updated: 2024-05-07T11:44:08Z department: - _id: '306' doi: 10.1002/chem.202100766 intvolume: ' 27' issue: '38' keyword: - Photocatalytic Hydrogen Production - Catalysis - Inorganic Chemistry language: - iso: eng page: 9905-9918 publication: Chemistry – A European Journal publication_identifier: issn: - 0947-6539 - 1521-3765 publication_status: published publisher: Wiley status: public title: Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad type: journal_article user_id: '48467' volume: 27 year: '2021' ...