Yao Li, Niu Guangda, Li Junze, Gao Liang, Luo Xufeng, Xia Bing, Liu Yuhao, Du Peipei, Li Dehui, Chen Chao, Zheng Youxuan, Xiao Zewen, Tang Jiang
Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China.
School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan 430074 , China.
J Phys Chem Lett. 2020 Feb 20;11(4):1255-1260. doi: 10.1021/acs.jpclett.9b03478. Epub 2020 Jan 31.
Circularly polarized luminescent (CPL) materials are promising in applications such as 3D displays and quantum communication. Hybrid organic-inorganic copper(I) iodides have been rapidly developed due to their intense photoluminescence and structural diversity; nevertheless, the reported Cu-I clusters rarely show CPL activities. In this study, we introduced chiral organic molecules /-methylbenzylammonium (/-MBA) into Cu-I inorganic skeletons to achieve chiral tetranuclear (/-MBA)CuI clusters with intense orange luminescence and CPL activity at room temperature. These enantiomeric (/-MBA)CuI clusters show oppositely signed circular dichroism (CD) signals, which agree well with their simulated electronic CD spectra. The crystallization-induced helical arrangement of (/-MBA)CuI clusters and their largely distorted polynuclear configuration demonstrate a new platform for the study of chiral-related properties.
圆偏振发光（CPL）材料在3D显示和量子通信等应用中具有广阔前景。有机-无机杂化碘化亚铜（I）因其强烈的光致发光和结构多样性而得到迅速发展；然而，已报道的Cu-I簇很少表现出CPL活性。在本研究中，我们将手性有机分子/ -甲基苄基铵（/ -MBA）引入Cu-I无机骨架中，以实现具有强烈橙色发光和室温下CPL活性的手性四核（/ -MBA）CuI簇。这些对映体（/ -MBA）CuI簇显示出相反符号的圆二色性（CD）信号，这与它们模拟的电子CD光谱非常吻合。（/ -MBA）CuI簇的结晶诱导螺旋排列及其严重扭曲的多核构型为研究手性相关性质提供了一个新平台。
