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Porphyries with Aromatic 26π-Electron Systems

✍ Scribed by Dr. Thomas Wessel; Prof. Dr. Burchard Franck; Dr. Manfred Möller; Dipl.-Ing. Ute Rodewald; Mechthild Läge

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
466 KB
Volume
32
Category
Article
ISSN
0044-8249

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The D 4h -symmetric tetraoxa [18]porphyrin dication 1, [1] which is isoelectronic with diprotonated porphyrin, and the N,N',N'',N'' '-tetramethyl[26]porphyrin-(3.3.3.3) dication (3 with NCH 3 instead of O; as the octaethyl derivative) described by Franck et al. [2] are prototypes of chalcogenaporphy