1579998-64-3Relevant academic research and scientific papers
Electron-donating behavior of few-layer graphene in covalent ensembles with electron-accepting phthalocyanines
Ragoussi, Maria-Eleni,Katsukis, Georgios,Roth, Alexandra,Malig, Jenny,De La Torre, Gema,Guldi, Dirk M.,Torres, Tomás
supporting information, p. 4593 - 4598 (2014/04/17)
We describe herein the first example of highly exfoliated graphene covalently linked to electron accepting phthalocyanines. The functionalization of the nanocarbon surface with alkylsulfonyl phthalocyanines was attained by means of a click chemistry protocol. The new ensemble was fully characterized (thermogravimetric analysis, atomic force microscopy, transmission electron microscopy and Raman, as well as ground-state absorption) and was studied in terms of electron donor-acceptor interactions in the ground and in the excited state. In particular, a series of steady-state and time-resolved spectroscopy experiments demonstrated photoinduced electron transfer from the graphene to the electron-accepting phthalocyanines. This is the first example of an electron donor-acceptor nanoconjugate, that is, few-layer graphene/phthalocyanine, pinpointing the uncommon electron donating character of graphene.
