Isomeric porphyrin phenanthrenequinones: Synthesis, NMR spectroscopy, electrochemical properties, and in situ EPR/ENDOR studies of the o-semiquinone anion radicals
Speck M, Senge MO, Niethammer D (2002)
Publication Type: Journal article, Original article
Publication year: 2002
Journal
Original Authors: Speck M., Niethammer D., Senge M.
Publisher: Chemical Society
Pages Range: 455-462
Journal Issue: 3
Abstract
Porphyrin quinones are attractive model compounds for mimicking natural electron transfer processes. While the overwhelming majority of studies have been performed with porphyrin p-quinones the isomeric porphyrin o-quinones have been mostly neglected. Using phenanthrene-9,10-quinones as the acceptor component we have prepared several porphyrin o-quinones (1, 2, 5, 6) and show that a facile and simple variation of ΔG can be achieved by using the in situ formed semiquinones for metal chelatization. Additionally, detailed NMR studies show that for asymmetrically substituted porphyrins a complete assignment of the H- and C-chemical shifts is possible. Complete NMR assignments were necessary for an unambiguous structure determination.
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Ireland (IE)How to cite
APA:
Speck, M., Senge, M.O., & Niethammer, D. (2002). Isomeric porphyrin phenanthrenequinones: Synthesis, NMR spectroscopy, electrochemical properties, and in situ EPR/ENDOR studies of the o-semiquinone anion radicals. Journal of the Chemical Society, Perkin Transactions 2, 3, 455-462. https://doi.org/10.1002/chin.200221083
MLA:
Speck, Marcus, Mathias O. Senge, and Dominique Niethammer. "Isomeric porphyrin phenanthrenequinones: Synthesis, NMR spectroscopy, electrochemical properties, and in situ EPR/ENDOR studies of the o-semiquinone anion radicals." Journal of the Chemical Society, Perkin Transactions 2 3 (2002): 455-462.
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