Synthesis, structure, and physical properties of 5,7,14,16-tetraphenyl-8:9,12:13-bisbenzo-hexatwistacene.
A novel compound, 5,7,14,16-tetraphenyl-8:9,12:13-bisbenzo-hexatwistacene (TBH), has been successfully synthesized through a retro-Diels-Alder reaction. Single-crystal structure analysis indicated that TBH has a twisted configuration with a torsion angle of 27.34°. The HOMO-LUMO gap of TBH calculated from the difference between the half-wave redox potentials (E(1/2) (ox) =+0.40 eV and E(1/2)(red) =-1.78 eV) is 2.18 eV, which is in good agreement with the band gap (2.19 eV) derived from the UV/Vis absorption data. In addition, organic light-emitting devices using TBH as emitter have been fabricated. The results revealed that TBH is a promising red light-emitting candidate for applications in organic light-emitting diodes.
School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
Jinchong
J
Xiao
Shuwei
S
Liu
Yi
Y
Liu
Li
L
Ji
Xuewei
X
Liu
Hua
H
Zhang
Xiaowei
X
Sun
Qichun
Q
Zhang
D006841:Hydrocarbons, Aromatic / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D013730:Terphenyl Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
C572787:5,7,14,16-tetraphenyl-8:9,12:13-bisbenzo-hexatwistacene; D006841:Hydrocarbons, Aromatic; D013730:Terphenyl Compounds