title: o-Carborane functionalized pentacenes: synthesis, molecular packing and ambipolar organic thin-film transistors.
abstract: New 6,13-bis[1'-(C≡C)-2'-R-1',2'-C2B10H10]pentacenes (R = H, Me, Et, n-Bu) are synthesized and fully characterized. The results show that the alkyl substituents on the second cage carbon have a significant impact on the molecular packing, and the incorporation of the o-carboranyl moiety into a π conjugated system can lower both LUMO and HOMO energy levels, converting a typical p-type semiconductor into an ambipolar one.
authors.affiliation: Department of Chemistry and Center of Novel Functional Molecules, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
authors.forename: Jixi
authors.initials: J
authors.lastname: Guo
authors.forename: Danqing
authors.initials: D
authors.lastname: Liu
authors.forename: Jiahui
authors.initials: J
authors.lastname: Zhang
authors.forename: Jiji
authors.initials: J
authors.lastname: Zhang
authors.forename: Qian
authors.initials: Q
authors.lastname: Miao
authors.forename: Zuowei
authors.initials: Z
authors.lastname: Xie