Pyromellitic Diimide-Porphyrin Cyclophanes: Syntheses, Transannular Interactions, and Structure Analysis
✍ Scribed by Heinz A. Staab; Susanne Nikolic; Claus Krieger
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 351 KB
- Volume
- 1999
- Category
- Article
- ISSN
- 1434-193X
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✦ Synopsis
The acceptor-porphyrin cyclophanes 2 and 4 with acceptor-porphyrin cyclophanes are discussed based on 1 H-NMR and the X-ray structural analysis of 2. According to the pyromellitic diimide (1) as strong electron-acceptor, and the corresponding porphyrin zinc complexes 3 and 5 were results obtained, the plane of 1 and that of the porphyrin unit (at least in the crystalline state) are neither close nor parallel prepared by a route which differs considerably from that in the syntheses of previously prepared electron-acceptor to each other. An unusual dihedral orientation of the donor and acceptor planes was detected for 2. porphyrin cyclophanes. The conformations of these electronal., [2] and in recent years the electron transfer interactions [ ] Part 18: Ref. [1] [a] Arbeitsgruppe Organische Chemie, Max-Planck-Institut für C-5 and C-15 positions of porphyrins. medizinische Forschung, Since in recent years a great number of structurally differ-