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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Circularly polarized luminescence of chiral 1,8-naphthalimide-based pyrene fluorophore induced via supramolecular self-assembly
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Circularly polarized luminescence of chiral 1,8-naphthalimide-based pyrene fluorophore induced via supramolecular self-assembly

机译：通过超分子自组装诱导的手性1,8-萘硫酰胺荧光细胞的圆极化发光

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摘要

Herein, two pairs of chiral 1,8-naphthalimide-based enantiomers incorporating D/L-alanine and pyrene fluorophore moieties were designed and synthesized. The fluorescence emission gradually changes from bright-yellow to red when the fraction of the poor solvent methanol increases from 0 to 99 vol%. No obvious circular dichroism (CD) and circularly polarized luminescence (CPL) signals could be observed in the CHCl3 solution. Interestingly, D/L-1 can exhibit a stronger red-colored CPL response signal as compared to D/L-2 at f(m) = 99% in the aggregate state; this is due to the formation of regular and orderly self-assembled nanonetworks in the aggregate state via intermolecular pi-pi interactions. Moreover, the optical anisotropy factor (g(lum)) could reach a value as high as 0.013.
机译：在此，设计并合成了掺入D / L-丙烯和芘荧光团部分的两对手性1,8-萘酰亚胺映体。 当较差的溶剂甲醇的级分从0到99体积％增加时，荧光发射逐渐从亮黄色变为红色。 在CHCl 3溶液中可以没有观察到明显的圆形二色性（CD）和圆极化发光（CPL）信号。 有趣的是，D / L-1可以表现出更强的红色CPL响应信号，与聚集状态为99％的D / L-2相比; 这是由于通过分子间Pi-PI相互作用形成总体状态的规则和有序的自组装纳米型纳米。 此外，光学各向异性因子（G（LUM））可以达到高达0.013的值。

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