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Inside Back Cover: Ultralong Room‐Temperature Phosphorescence from Boric Acid (Angew. Chem. Int. Ed. 17/2021)
Author(s) -
Zheng Haoyue,
Cao Peisheng,
Wang Yanying,
Lu Xiaomei,
Wu Peng
Publication year - 2021
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.202103677
Subject(s) - phosphorescence , boric acid , lone pair , phosphor , hydrogen bond , chemistry , cover (algebra) , photochemistry , crystallography , materials science , molecule , fluorescence , organic chemistry , physics , optics , mechanical engineering , engineering , optoelectronics
The impressive and unexpected long‐lived room‐temperature phosphorescence of boric acid (H 3 BO 3 ) is unveiled by Peng Wu and co‐workers in their Research Article on page 9500. Unlike traditional metallic inorganic or aromatic organic phosphors, the phosphorescence originates from the weak conjugation of lone pair electrons from O atoms. The vacant p z orbital of B and the regular arrangement in the crystalline state with layer‐like packing through abundant hydrogen bonding are found to contribute to the long‐lived emission.