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Cover Picture: Novel Synthetic Cycloketo-Tetraphenylporphyrins (Eur. J. Org. Chem. 7/2007)

✍ Scribed by Stefan Jasinski; Eugeny A. Ermilov; Norbert Jux; Beate Röder

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
138 KB
Volume
2007
Category
Article
ISSN
1434-193X

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✍ Cristina Bazzini; Sergio Brovelli; Tullio Caronna; Cristian Gambarotti; Matteo G 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 55 KB 👁 1 views

## Abstract **The cover picture shows** the structure of 5‐aza[5]helicene (top) and the crystal packing (single enatiomers, bottom). This is one of the aza[5]helicenes reported in the paper that were synthesized by photochemical ring closure of suitable ethenyl derivatives. The photophysical proper