Stable Alignment of Tautomers at Room Temperature in Porphyrin 2D Layers (pages 958–963)
Gianlorenzo Bussetti, Marcello Campione, Michele Riva, Andrea Picone, Luisa Raimondo, Lorenzo Ferraro, Conor Hogan, Maurizia Palummo, Alberto Brambilla, Marco Finazzi, Lamberto Duò, Adele Sassella and Franco Ciccacci
Version of Record online: 18 SEP 2013 | DOI: 10.1002/adfm.201301892
Frozen tautomers at room temperature are exploited in a first logic device prototype. Following a newly proposed growth strategy, a purely 2D ordered array of metal-free porphyrins shows all the tautomers aligned along a direction settled a priori. This occurrence characterizes the anisotropic optical property of the system. The quenching/renewing of the porphyrin anisotropy defines two distinct logic states (0/1) easily readable by optics.