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Mohamed Abdellah

Researcher

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Revealing Hot and Long-Lived Metastable Spin States in the Photoinduced Switching of Solvated Metallogrid Complexes with Femtosecond Optical and X-ray Spectroscopies

Author

  • Maria A. Naumova
  • Aleksandr Kalinko
  • Joanne W.L. Wong
  • Mohamed Abdellah
  • Huifang Geng
  • Edoardo Domenichini
  • Jie Meng
  • Sol Alvarez Gutierrez
  • Pierre Adrien Mante
  • Weihua Lin
  • Peter Zalden
  • Andreas Galler
  • Frederico Lima
  • Katharina Kubicek
  • Mykola Biednov
  • Alexander Britz
  • Stefano Checchia
  • Victoria Kabanova
  • Michael Wulff
  • Jennifer Zimara
  • Dirk Schwarzer
  • Serhiy Demeshko
  • Vadim Murzin
  • David Gosztola
  • Martin Jarenmark
  • Jianxin Zhang
  • Matthias Bauer
  • Max Latevi Lawson Daku
  • Wojciech Gawelda
  • Dmitry Khakhulin
  • Christian Bressler
  • Franc Meyer
  • Kaibo Zheng
  • Sophie E. Canton

Summary, in English

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.

Department/s

  • Chemical Physics
  • NanoLund
  • MAX IV Laboratory
  • Lithosphere and Biosphere Science

Publishing year

2020

Language

English

Pages

2133-2141

Publication/Series

The Journal of Physical Chemistry Letters

Volume

11

Issue

6

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Physical Chemistry

Status

Published

ISBN/ISSN/Other

  • ISSN: 1948-7185