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Nitrogen Analogues of Thiele’s Hydrocarbon
Author(s) -
Su Yuanting,
Wang Xingyong,
Li Yuantao,
Song You,
Sui Yunxia,
Wang Xinping
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201410256
Subject(s) - diradical , chemistry , hydrocarbon , moiety , singlet state , excited state , computational chemistry , triplet state , character (mathematics) , bridging (networking) , ground state , molecule , photochemistry , organic chemistry , atomic physics , physics , mathematics , computer network , geometry , computer science
A series of bis[ N , N ‐di‐(4‐methoxylphenyl)amino]arene dications 1 2+ – 3 2+ have been synthesized and characterized. Their electronic structures were investigated by various experiments assisted by theoretical calculations. It was found that they are singlets in the ground state and that their diradical character is dependent on the bridging moiety. 3 2+ has a smaller singlet–triplet energy gap and its excited triplet state is thermally readily accessible. The work provides a nitrogen analogue of Thiele’s hydrocarbon with considerable diradical character.