Circularly Polarized Luminescence from Achiral Single Crystals of Hybrid Manganese Halides

Jian Zhao, Tongjin Zhang, Xi‐Yan Dong, Meng‐En Sun, Chong Zhang, Xinlei Li, Yong Sheng Zhao, Shuang‐Quan Zang

Journal of the American Chemical Society · 2019 · 201 citations · 59 references

Concepts

Abstract

[K(dibenzo-18-crown-6)]+ (KC) cations are used for cocrystallization with manganese halides, producing isostructural single crystals of organic–inorganic hybrid complexes, [K(dibenzo-18-crown-6)]2MnX4 (abbreviated (KC)2MnX4) (X = Cl, Br), which feature one-dimensional morphology and green phosphorescence with considerable photoluminescence quantum yields accompanied by excellent optical waveguide behavior with a low loss coefficient. More interestingly, (KC)2MnX4 crystallizes in the monoclinic space group Cc belonging to the achiral point group m (Cs), where the non-centrosymmetric arrangement of racemic units, with right- and left-handed rotating optical axes, endows these achiral single crystals with circularly polarized luminescence, observed for the first time.

References

59