Maria A Naumova, Gheorghe Paveliuc, Mykola Biednov, Katharina Kubicek, Aleksandr Kalinko, Jie Meng, Mingli Liang, Ahibur Rahaman, Mohamed Abdellah, Stefano Checchia, Frederico Alves Lima, Peter Zalden, Wojciech Gawelda, Christian Bressler, Huifang Geng, Weihua Lin, Yan Liu, Qian Zhao, Qinying Pan, Marufa Akter, Qingyu Kong, Marius Retegan, David J Gosztola, Mátyás Pápai, Dmitry Khakhulin, Max Lawson Daku, Kaibo Zheng, Sophie E Canton
Metalloporphyrins with open d-shell ions can drive biochemical energy cycles. However, their utilization in photoconversion is hampered by rapid deactivation. Mapping the relaxation pathways is essential for elaborating strategies that can favorably alter the charge dynamics through chemical design and photoexcitation conditions. Here, we combine transient optical absorption spectroscopy and transient X-ray emission spectroscopy with femtosecond resolution to probe directly the coupled electronic and spin dynamics within a photoexcited nickel porphyrin in solution...
March 26, 2024: Journal of Physical Chemistry Letters