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Front Cover: Stereochemistry, Stereodynamics, and Redox and Complexation Behaviors of 2,2′‐Diaryl‐1,1′‐Biazulenes (ChemPlusChem 11/2019)
Author(s) -
Tsuchiya Takahiro,
Katsuoka Yuka,
Yoza Kenji,
Sato Hiroyasu,
Mazaki Yasuhiro
Publication year - 2019
Publication title -
chempluschem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201900559
Subject(s) - azulene , redox , intramolecular force , chemistry , cover (algebra) , front cover , stereochemistry , symmetry (geometry) , photochemistry , mathematics , geometry , organic chemistry , mechanical engineering , engineering
The front cover shows the twisted structure of 2,2′‐di(pyridin‐4‐yl)‐1,1′‐biazulenes, which form a 3:3 cyclic complex with PdCl 2 . The uncomplexed azulenes racemize in solution (unlocked conformation), whereas the three biazulene units in the complex were found to cyclize in the ( R )‐ and ( S )‐forms in a ratio of either 2:1 or 1:2, with an overall C 2 symmetry (locked conformation). The intramolecular electronic communication among the azulene units was also demonstrated by redox measurements. Details are given in the Full Paper by T. Tsuchiya, Y. Mazaki, and co‐workers on page 1659 in Issue 11, 2019 (DOI: 10.1002/cplu.201900262).