1. Organic
Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews,
Fife KY16 9ST, U.K.
2. Organic
Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews,
Fife KY16 9SS, U.K.
3. Instituto
de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán
2, Paterna E-46980, Spain