Reversible redox switching between local and global aromaticity for core-modified expanded carbaisophlorinoids
作者:Madan D. Ambhore、Santosh P. Panchal、Arpan Mondal、Sanjit Konar、Venkataramanarao G. Anand
DOI:10.1039/d1ob02230j
日期:——
Two dithienothiophene based 28π antiaromatic macrocycles with benzene and azulene units and their effects on local and global (anti)aromaticity have been described. Experimental and computational studies confirmed the presence of weak paratropic and strong diatropic ring current effects in neutral and dicationic states, respectively.
π-Conjugated macrocycles from thiophenes and benzenes
作者:J. Sreedhar Reddy、Venkataramanarao G. Anand
DOI:10.1039/b715553k
日期:——
Ï-Conjugated macrocycles consisting of thiophenes and benzenes exhibit benzenoid features for 4nÏ macrocycles, whereas (4n + 2)Ï macrocycles are annulenoid due to rapid interconversion between quinoid and Kekule canonical forms in the benzene units.