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Redox Properties of Zinc Tetrabenzporphyrin
Author(s) -
Vogler Arnd,
Rethwisch Birgit,
Kunkely Horst,
Hüttermann Jürgen,
Besenhard Jürgen Otto
Publication year - 1978
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197809511
Subject(s) - redox , zinc , chemistry , metal , inert , inorganic chemistry , ring (chemistry) , photochemistry , organic chemistry
The redox potential of porphyrins could previously only be modified by variation of the central metal and additional axial ligands. However, it can also be considerably reduced by extension of the π‐electron system of the porphyrins: in zinc tetrabenzporphyrin (containing a redox‐inert metal) the potential difference between the first oxidation and the first reduction of the ring is only 1.84 V, as against ca . 2.25V in other porphyrins.