Circularly Polarized Luminescence from Achiral Single Crystals of Hybrid Manganese Halides.
J Am Chem Soc
; 141(40): 15755-15760, 2019 Oct 09.
Article
em En
| MEDLINE
| ID: mdl-31525976
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.
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MEDLINE
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En
Ano de publicação:
2019
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Article