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Long‐Persistent Circularly Polarized Phosphorescence from Chiral Organic Ionic Crystals
Author(s) -
Chen Wenjie,
Tian Zimin,
Li Yuangang,
Jiang Yuqian,
Liu Minghua,
Duan Pengfei
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201804342
Subject(s) - phosphorescence , ionic crystal , polarization (electrochemistry) , ionic bonding , crystallography , materials science , crystal structure , circular polarization , crystal (programming language) , photochemistry , chemistry , optics , ion , physics , organic chemistry , fluorescence , programming language , computer science , microstrip
Long‐persistent circularly polarized phosphorescence (LPCPP) is achieved for the first time in chiral organic ionic crystals at room temperature. The co‐crystal composed of terephtalic acid (TPA) and chiral α‐phenylethyamines (PEAs) gave rise to LPCPP with lifetimes up to 862 ms and large dissymmetric factor ( g lum ). The hybridization of TPA with chiral PEAs allows circular polarization of the generated long‐persistent phosphorescence. The observed mirror‐image twisted molecular structures in the rigid lattices were responsible for the chiroptical activation of the generated long‐persistent phosphorescence.