SupraBank - Bambusuril as a One-Electron Donor for Photoinduced Electron Transfer to Methyl Viologen in Mixed Crystals

DOI:: https://doi.org/10.34804/supra.20210928108
Title:: Bambusuril as a One-Electron Donor for Photoinduced Electron Transfer to Methyl Viologen in Mixed Crystals

Description:: Methyl viologen hexafluorophosphate (MV2+·2PF6–) and dodecamethylbambus[6]uril (BU6) form crystals in which the layers of viologen dications alternate with those of a 1:2 supramolecular complex of BU6 and PF6–. This arrangement allows for a one-electron reduction of MV2+ ions upon UV irradiation to form MV+• radical cations within the crystal structure with half-lives of several hours in air. The mechanism of this photoinduced electron transfer in the solid state and the origin of the long-lived charge-separated state were studied by steady-state and transient spectroscopies, cyclic voltammetry, and electron paramagnetic resonance spectroscopy. Our experiments are supported by quantum-chemical calculations showing that BU6 acts as a reductant. In addition, analogous photochemical behavior is also demonstrated on other MV2+/BU6 crystals containing either BF4– or Br– counterions.

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Creators:: | | Tomas Fiala; | | Lucie Ludvíková; | | Dominik Heger; | | Jan Švec; | | Tomáš Slanina; | | L’ubica Vetráková; | | Michal Babiak; | | Marek Nečas; | | Petr Kulhánek; | | Petr Klán; | | Vladimir Sindelar
Contributers:: | | Zoran Kokan | DataManager

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Citation:	V. Sindelar, L. Ludvíková, M. Babiak, P. Klán, D. Heger, T. Fiala, J. Švec, T. Slanina, L. Vetráková, M. Nečas, P. Kulhánek, SupraBank 2024, Bambusuril as a One-Electron Donor for Photoinduced Electron Transfer to Methyl Viologen in Mixed Crystals (dataset). https://doi.org/10.34804/supra.20210928108
Link:	https://doi.org/10.34804/supra.20210928108
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Citation:	T. Fiala, L. Ludvíková, D. Heger, J. Švec, T. Slanina, L. Vetráková, M. Babiak, M. Nečas, P. Kulhánek, P. Klán, et al., J. Am. Chem. Soc. 2017, 139, 2597–2603.
Link:	https://doi.org/10.1021/jacs.6b08589
Export:	BibTex \| RIS \| EndNote \|