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Frontispiece: Electrochemical, Spectroelectrochemical, Mößbauer, and EPR Spectroscopic Studies on Ferrocenyl‐Substituted Tritylium Dyes
Author(s) -
Oßwald Steffen,
Casper Larissa A.,
Anders Patrick,
Schiebel Eva,
Demeshko Serhiy,
Winter Rainer F.
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201884865
Subject(s) - electron paramagnetic resonance , chemistry , photochemistry , electron transfer , electrochemistry , radical , aryl , ion , spectroscopy , oxidation state , electrode , organic chemistry , metal , nuclear magnetic resonance , physics , alkyl , quantum mechanics
Four new polyelectrochromic ferrocenyl‐substituted tritylium ions are presented. They feature oxidation state‐dependent charge‐transfer excitations from the respective aryl or ferrocenyl donors to the tritylium and, after oxidation, ferrocenium acceptors. The dimerization of the corresponding one‐electron reduced neutral trityl radicals to hexaarylethanes has been studied by temperature‐dependent EPR spectroscopy and the thermodynamic parameters for this process were determined. For more information, see the Full Paper by R. F. Winter et al. on page 12524 ff.