The lowest triplet electronic states of polyacenes and perfluoropolyacenes Zhang, Xiuhui ; Li, Qian-Shu ; Xie, Yaoming ; Schaefer, Henry, III Abstract Publication: Molecular Physics Pub Date: October 2007 DOI: 10.1080/00268970701624695 Bibcode: 2007MolPh.105.2743Z