Rational manipulation of circularly polarized luminescence (CPL) properties is challenging in single component self-assembled systems. In this work we present a protocol to precisely tailor the CPL properties including handedness, dissymmetry factor (g_lum), and wavelength of single component self-assemblies. A library of cholesteryl naphthalimides was built up with varied spacer and side arm groups. In aqueous media, building units self-assembled into vesicles with right-handed CPL, of which g_lum values were at 10^–3 grade. Specifically, organogels were given in apolar solvent decane with excellent mechanical strength. The entangled gel networks possessed greatly enhanced g_lum values at 10^–2 magnitude order, and CPL handedness was inverted to the left. In the presence of a small amount of water (1 vol %), crystalline precipitates were generated instead of original organogels, which further inverted CPL handedness to the right with diminished g_lum values. The present solvent-polarity ultrasensitive property offers alternative thought to rationally enhance CPL with fine tailored handedness and wavelength in supramolecular systems.

中文翻译：

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通过溶剂极性调整胆固醇共轭萘二甲酰亚胺的圆偏振发光

在单组件自组装系统中，对圆偏振发光（CPL）属性的合理操作具有挑战性。在这项工作中，我们提出了一种协议，可以精确地定制CPL属性，包括惯用性，不对称因子（g _lum）和单个组件自组装的波长。建立了具有不同间隔基和侧臂基团的胆固醇基萘二甲酰亚胺文库。在水性介质中，建筑物单元的自组装成具有右旋CPL，其中小泡克_LUM值在10 ^-3级。具体地，有机凝胶在非极性溶剂癸烷中以优异的机械强度提供。缠结凝胶网络附体大大增强克_LUM在10个值^–2数量级，并且CPL惯用语向左反转。在水（1体积％）少量的存在下，产生析出结晶，而不是原来的有机凝胶，其进一步反转CPL螺旋性与减少的权克_LUM值。当前的溶剂极性超灵敏特性提供了另一种思路，即在超分子系统中以精细定制的手感和波长合理地增强CPL。