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Azafullerene C59 in Donor-Acceptor Dyads: Synthetic Approaches and Properties
Georgios Rotas1, Nikos Tagmatarchis2
1Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Contantinou Avenue, Athens, 11635, Greece. tagmatar@eie.gr.
Abstract:
Energy conversion schemes have attracted considerable attention in recent years. A large amount of research effort has focused on fullerenes, particularly C60 and its derivatives, as suitable electron acceptors, owing to their outstanding properties. In this context, C59 N-based donor-acceptor systems have lately attracted attention, owing to their exceptional energy-and electron-transfer properties. As a result, chemical derivatization of C59 N plays an important role in the realization of the aforementioned systems. The current Minireview aims to familiarize researchers with the main aspects of azafullerene synthesis, chemistry, and photophysical properties, while it mainly focuses on the synthetic methodologies employed for as well as on energy conversion schemes of azafullerene-based donor-acceptor systems.
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Conformation
The simplest example of a diene is 1,3-butadiene, an acyclic conjugated π system. At room temperature, the molecule exists as a mixture of s-cis and s-trans conformers by virtue of rotation around the carbon–carbon single bond. Although the s-trans isomer is more stable,...

