Tempo-spatial chirogenesis. Limonene-induced mirror symmetry breaking of Si Si bond polymers during aggregation in chiral fluidic media
作者:Michiya Fujiki、Keisuke Yoshida、Nozomu Suzuki、Nor Azura Abdul Rahim、Jalilah Abd Jalil
DOI:10.1016/j.jphotochem.2016.01.027
日期:2016.12
bis(p-n-butylphenyl)polysilanes, nBuPS, and four other diarylpolysilanes. (S)- and (R)-limonene induced more efficiently to their chirality to nBuPS during aggregation, as proven by CD and CPL spectral analysis, compared to (1S)- and (1R)-α-pinene. The nBuPS aggregates generated in a mixture of limonene, methanol, and chloroform had a dissymmetry factor (gabs) as high as +0.04 for (R)-limonene and −0.03 for (S)-limonene
在这里,我们设计了由(S)-/(R)-柠檬烯和(1 S)-/(1 R)-α-pine烯有机介质包围的光致发光聚合物聚集体,作为无孔壁流动的人工模型。在基态和光激发态的流体介质中凝聚。聚集体是由刚性圆二色性(CD)-静音和圆极化发光(CPL)-静音的双(对-正丁基苯基)聚硅烷,n BuPS和四种其他二芳基聚硅烷组成的。(S)和(R)柠檬烯对n BuPS的手性诱导更有效。CD和CPL光谱分析证明,与(1 S)-和(1 R)-α-pine烯相比,在聚集过程中。在柠檬烯,甲醇和氯仿的混合物中生成的n个BuPS聚集体在第一个棉带处的(R)-柠檬烯的不对称因子(g abs)高达+0.04 ,(S)-柠檬烯的不对称因子高达-0.03。(R)-柠檬烯的弱不对称系数(g lum)为+0.004 ,(S)-柠檬烯的弱不对称系数为-0.003 。该摹ABS但是,该因素很大程度上取决于柠檬油在三元溶剂中的体积分数