911649-07-5Relevant articles and documents
Diarylfluorenes-based π-stacked molecules: Synthesis, X-ray crystallography, and supramolecular light-emitting devices
Yang, Yang,Zhao, Jian-Feng,Liu, Ran-Ran,Li, Jie-Wei,Yi, Ming-Dong,Xie, Guo-Hua,Xie, Ling-Hai,Chang, Yong-Zheng,Yin, Cheng-Rong,Zhou, Xin-Hui,Zhao, Yi,Qian, Yan,Huang, Wei
, p. 6317 - 6322 (2013/07/25)
A series of intramolecular π-stacked molecules as new-concept supramolecular organic semiconductors have been designed by means of the ortho-substituted steric hindrance of diarylfluorenes and facile synthesized via the key step of BF3·Et2O-mediated Friedel-Crafts reaction of carbinols. Their intramolecular π-π stacking interactions were corroborated by the X-ray crystallography, NMR, as well as theoretical simulation. The supramolecular organic light-emitting devices exhibited an anomalous electroluminescence with a maximum luminance of ca. 1282 cd/m 2, a luminous efficiency of 0.24 cd/A, and a turn-on voltage of 9 V. The π-stacked semiconductors are potential models of supramolecular semiconductors and optoelectronics.