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Journal Article

Pyromellitic diimide-porphyrin cyclophanes: Syntheses, transannular interactions and structure analysis

MPS-Authors
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Staab,  Heinz A.
Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society;

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Krieger,  Claus
Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society;

External Resource

http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1099-0690(199906)1999:6%3C1459::AID-EJOC1459%3E3.0.CO;2-7/pdf
(Any fulltext)

http://dx.doi.org/10.1002/(SICI)1099-0690(199906)1999:6%3C1459::AID-EJOC1459%3E3.0.CO;2-7
(Any fulltext)

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Citation

Staab, H. A., Nikolic, S., & Krieger, C. (1999). Pyromellitic diimide-porphyrin cyclophanes: Syntheses, transannular interactions and structure analysis. European Journal of Organic Chemistry, 6, 1459-1470. doi:10.1002/(SICI)1099-0690(199906)1999:6<1459:AID-EJOC1459>3.0.CO;2-7.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-AC8B-8
Abstract
The acceptor-porphyrin cyclophanes 2 and 4 with pyromellitic diimide (1) as strong electron-acceptor, and the corresponding porphyrin zinc complexes 3 and 5 were prepared by a route which differs considerably from that in the syntheses of previously prepared electron-acceptor porphyrin cyclophanes. The conformations of these electron-acceptor-porphyrin cyclophanes are discussed based on 1H-NMR and the X-ray structural analysis of 2. According to the results obtained, the plane of 1 and that of the porphyrin unit (at least in the crystalline state) are neither close nor parallel to each other. An unusual dihedral orientation of the donor and acceptor planes was detected for 2