1. Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K., Department of Physics, Lancaster University, Lancaster LA1 4YB, U.K., Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, U.K., Departamento de Química Orgánica-Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain, and Advanced Organic Materials and Devices Laboratory, Department of Chemistry, Faculty of...