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Inside Cover: Multiple‐State Emissions from Neat, Single‐Component Molecular Solids: Suppression of Kasha's Rule (Angew. Chem. Int. Ed. 25/2020)
Author(s) -
Wu YaHang,
Xiao Hongyan,
Chen Bin,
Weiss Richard G.,
Chen YuZhe,
Tung ChenHo,
Wu LiZhu
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202007035
Subject(s) - intramolecular force , intermolecular force , excited state , cover (algebra) , hydrogen bond , fluorescence , state (computer science) , solid state , component (thermodynamics) , molecular solid , chemistry , atomic physics , physics , molecule , thermodynamics , quantum mechanics , stereochemistry , mechanical engineering , engineering , algorithm , computer science
A unique molecular skeleton generates multiple‐state emissions in the solid state at room temperature. As presented by Y.‐Z. Chen, L.‐Z. Wu, and co‐workers in their Research Article on page 10173, large energy gaps between the S 2 and S 1 states, and an abundance of intramolecular/intermolecular hydrogen bonds, suppress internal conversions of the upper excited states in the solids and enable unprecedented fluorescence quantum yields (2.3–9.6 %) from the S 2 states.