A Pivotal Biaryl Rotamer Bearing Two Floppy Pyrenes that Exhibits Cryptochiral Characteristics in the Ground State
A Pivotal Biaryl Rotamer Bearing Two Floppy Pyrenes that Exhibits Cryptochiral Characteristics in the Ground State
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DOI：
10.1002/slct.201801770
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发表时间：
2018-09
期刊：
影响因子：
2.1
通讯作者：
Nobuyuki Hara;Masaki Yanai;Daiki Kaji;M. Shizuma;N. Tajima;M. Fujiki;Y. Imai
中科院分区：
文献类型：
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作者：
Nobuyuki Hara;Masaki Yanai;Daiki Kaji;M. Shizuma;N. Tajima;M. Fujiki;Y. Imai
能够发射圆偏振光（CPL）的光学活性发光体是许多光子通信系统的关键。在此，我们报道了一种新的隐手性 CPL 功能分子系统，由 aC2 对称 5,5',6,6',7,7',8,8'-八氢-1,1'-双-2-萘基旋转异构体组成，带有两个连接到两个芘环作为发射体的柔性连接体。尽管在基态下表现出微弱的圆二色性 (CD) 信号，但发光体在光激发态下表现出清晰的 CPL 信号。
Optically active luminophores capable of emitting circularly polarized light (CPL) are keys in many photonic communication systems. Herein, we report a new cryptochiral CPL‐functioned molecular system composed of aC2‐symmetric 5,5’,6,6’,7,7’,8,8’‐octahydro‐1,1’‐bi‐2‐naphthyl rotamer bearing two flexible linkers attached to two pyrene rings as emitters. Despite exhibiting negligibly weak circular‐dichroism (CD) signals in the ground state, the luminophore displayed a clear CPL signal in the photoexcited state.