科研之友
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摘要
Reaction of 1,2-di(thiophen-2-yl)ethane-1,2-dione and (1R,2R)-(-)-diaminocyclohexane afforded a homochiral quinoxaline derivative (4aR,8aR)-2,3-di(thiophen-2-yl)-decahydroquinoxaline (1). Fluorescent analysis exhibits an intense blue emission band at 386 nm. Crystallographic analysis showed that it belongs to chiral space group P2(1) with ferroelectric behavior, and a typical ferroelectric feature of electric hysteresis loop was obtained. The dielectric constant of compound 1 was measured at room temperature.
