Liu, Yulong Shan, Tong Yao, Liang Bai, Qing Guo, Yachen Li, Jinyu Han, Xiao Li, Weijun Wang, Zhiming Yang, Bing Lu, Ping Ma, Yuguang Isomers of Pyrene–Imidazole Compounds: Synthesis and Configuration Effect on Optical Properties Two pyrene-imidazole-based structural isomers, axisymmetric <i>syn</i>-PyDTI and centrosymmetric <i>anti</i>-PyDTI, have been easily produced and successfully separated in a one-pot reaction. Crystalline <i>syn</i>-PyDTI exhibited a 2-fold higher quantum efficiency than <i>anti</i>-PyDTI and displayed a much better performance in OLEDs with a η<sub>c.max</sub> of 11.4 cd A<sup>–1</sup> (8.8 cd A<sup>–1</sup> for <i>anti</i>-PyDTI), although they possess the same apparent electronic structure. Observations revealed that the molecular excited-state properties are derived from distinct structural symmetries. centrosymmetric;PropertiesTwo;axisymmetric;quantum efficiency;isomers;Optical;Compound;Observations;symmetrie;OLED;η c.max;Configuration Effect;11.4 cd;performance;Isomer;Synthesi;Pyrene;Crystalline 2015-12-18
    https://acs.figshare.com/articles/journal_contribution/Isomers_of_Pyrene_Imidazole_Compounds_Synthesis_and_Configuration_Effect_on_Optical_Properties/2097562
10.1021/acs.orglett.5b02879.s001