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Cover Feature: Excitation Energy Transfer and Exchange‐Mediated Quartet State Formation in Porphyrin‐Trityl Systems (Chem. Eur. J. 8/2021)
Author(s) -
Nolden Oliver,
Fleck Nico,
Lorenzo Emmaline R.,
Wasielewski Michael R.,
Schiemann Olav,
Gilch Peter,
Richert Sabine
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202004196
Subject(s) - porphyrin , cover (algebra) , photochemistry , supramolecular chemistry , moiety , excited state , chemistry , electron paramagnetic resonance , femtosecond , spin (aerodynamics) , excitation , electron transfer , atomic physics , molecule , physics , laser , nuclear magnetic resonance , stereochemistry , optics , organic chemistry , mechanical engineering , quantum mechanics , engineering , thermodynamics
The photo‐induced formation of a quartet state in a molecular conjugate consisting of a porphyrin and a trityl moiety is depicted in the cover image. Such photogenerated multi‐spin systems hold great promise for applications in quantum information technology, artificial photosynthesis, as well as spin catalysis. The quartet state formation was scrutinised by femtosecond UV/Vis absorption and electron paramagnetic resonance spectroscopies, providing unique insight into the excited state reaction mechanism. Image design by Niklas Markloff, with contributions from Oliver Nolden. More information can be found in the Full Paper by S. Richert et al. on page 2683.