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Axially chiral 1,1'-bicarbazolyls with near-ultraviolet circularly polarized luminescence
So Shikita1,2, Takunori Harada3, Takuma Yasuda1,2
1INAMORI Frontier Research Center (IFRC), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. yasuda@ifrc.kyushu-u.ac.jp.
Abstract:
The facile synthesis and chiroptical properties of a new family of circularly polarized luminescence (CPL) materials, axially chiral 1,1'-bicarbazolyls (BiCz), are reported. The BiCz derivatives emitted intense near-ultraviolet photoluminescence, with a peak at ∼380 nm. The BiCz enantiomers showed mirror-image circular dichroism and CPL, with glum values on the order of 10-4 in solution.
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