Effect of Annulation Mode of Twistarene on the Physical Property and Self-Assembly Behavior of Functionalized Curved Aromatic Molecules |
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Authors: | Wei Wang Ziwei Yuan Sujuan Wang Xueqing Li Bingliang Ji Prof. Jinchong Xiao |
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Affiliation: | College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, 071002 P. R. China |
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Abstract: | Four novel curved polycyclic aromatic hydrocarbons 3 a , 5 , 8 , 15 a have been synthesized and characterized, where molecules 3 a and 15 a bear [5]carbohelicene units. X-ray single crystal analyses indicate that compound 3 a shows offset packing arrangements of (P5)- and (M5)-isomers, and 15 a has a symmetrical plane and looks like a butterfly. In comparison, 8 exhibits a slightly curved structure, in which the significant convex-to-convex π-overlap with the shortest distance of 3.42 Å occurs. In addition, the effect of annulation mode of twistarenes on the physical properties, self-assembly behaviors, and switchable photoconductivity of the as-prepared curved aromatic compounds were further examined in a comparative manner. |
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Keywords: | annulation mode arene optoelectronic property single crystal |
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