1073560-74-3Relevant articles and documents
The long and winding road to new porphycenes
Czerski, Igor,Listkowski, Arkadiusz,Nawrocki, Jan,Urbańska, Natalia,Piwoński, Hubert,Soko?owski, Adam,Pietraszkiewicz, Oksana,Pietraszkiewicz, Marek,Waluk, Jacek
scheme or table, p. 589 - 602 (2012/09/22)
We describe attempts - not always successful - made over the years to improve the efficiency of porphycene synthesis and to produce novel compounds, custom-designed for specific purposes. New porphycenes are reported, some of them obtained rather unexpectedly as by-products of the planned reactions. Structure and energy computations of possible tautomeric forms in porphycenes substituted by one, two, three, and four tert-butyl groups lead to predictions regarding the kinetics and mechanisms of intramolecular double hydrogen transfer. The occurrence of tautomerization in single molecules of tert-butylsubstituted porphycenes is demonstrated by using fluorescence polarization techniques.
