Circularly polarized luminescence (CPL) is useful for 3D optical imaging and optical storage, but it remains a big challenge to prepare chiral compounds with both strong emission and high-dissymmetry factor (g_lum). Here, we demonstrate that encapsulation of achiral dyes into hollow cages can inhibit the aggregation-caused quenching (ACQ) behavior and promote CPL induction and amplification. This leads to the synthesis of two chiral hexahedral Pd₆L₁₂ cages with crown ether or methoxymethyl moieties. Complexation of K⁺ with crown ethers allows inclusion of anionic achiral boron-dipyrromethene (BODIPY) dyes into the cage cavities to form stable host-guest complexes by cation-anion and host-guest interactions. Although both the cage and dyes exhibit no CPL, their host-guest complexes display strong CPL emissions with the g_lum factors in the order of 10⁻³ in solution. Upon crystallization, one order of magnitude amplification of the glum values in the cage-dye adducts (up to 2.4 × 10⁻²) is obtained.

圆偏振发光 (CPL) 可用于 3D 光学成像和光学存储，但制备具有强发射和高不对称因子 ( g _lum ) 的手性化合物仍然是一个巨大的挑战。在这里，我们证明将非手性染料封装到空心笼中可以抑制聚集引起的猝灭 (ACQ) 行为并促进 CPL 的诱导和放大。这导致合成两个具有冠醚或甲氧基甲基部分的手性六面体 Pd ₆ L ₁₂笼。K ^{+ 的}络合使用冠醚允许将阴离子非手性硼-二吡咯甲烯 (BODIPY) 染料包含到笼腔中，通过阳离子-阴离子和主客体相互作用形成稳定的主客体复合物。虽然这两个笼和染料没有表现出CPL，其主-客体复合物显示与所述强CPL排放克_LUM在10顺序因子^-3在溶液中。结晶后，笼型染料加合物中的 glum 值放大了一个数量级（高达 2.4 × 10 ^-2）。