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Front Cover: Blue‐to‐Green Delayed Fluorescence of 2‐Aminoisophthalic Acid Diesters Dispersed in Polymer Film (Eur. J. Org. Chem. 32/2017)
Author(s) -
Shimizu Masaki,
Nakatani Masaki
Publication year - 2017
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201701087
Subject(s) - fluorescence , chemistry , substituent , excited state , photochemistry , front cover , polymer , benzene , cover (algebra) , homo/lumo , group (periodic table) , ring (chemistry) , aggregation induced emission , molecule , stereochemistry , organic chemistry , optics , atomic physics , physics , mechanical engineering , engineering
The Front Cover shows the molecular structure of 2‐aminoisophthalate, which exhibits prompt and delayed fluorescence in a polymer film under vacuum. The emission color can be altered in the blue‐to‐green region by modification of an amino group, an alkoxycarbonyl carbonaceous substituent, or both. The layout of an amino group and two alkoxycarbonyl groups in a 2,1,3‐fashion onto a benzene ring results in spatial separation of the HOMO and LUMO, which leads to the emergence of delayed fluorescence. Two railroad stations named S 1 and S 0 station, as well as two railroad tracks for a bullet train and a steam locomotive, which surround the molecular structure, metaphorically express the prompt (fast) and delayed (slow) radiative transitions from the excited state (S 1 ) to the ground state (S 0 ). More information can be found in the Full Paper by M. Shimizu and M. Nakatani .