([5]HeliBI) was newly synthesized to examine the spectroscopic and chiroptical properties. The reversible protonation and deprotonation processes of [5]HeliBI were successfully investigated using 1H NMR, absorption and fluorescence spectral measurements. We also confirmed the circularly polarized luminescence of protonated [5]HeliBI (H+-[5]HeliBI). This is the first observation of red-coloured CPL of
苯并咪唑稠合的[5]碳硼烯([5] HeliBI)是新合成的,用于检查光谱和手性。[5] HeliBI的可逆质子化和去质子化过程已成功地使用1 H NMR,吸收和荧光光谱测量进行了研究。我们还证实了质子化的[5] HeliBI(H + -[5] HeliBI)的圆偏振发光。这是首次发现的Helicene衍生物红色CPL。