Topological Diversity in Electrochemically Active Core-Modified Expanded Porphyrinoids
作者:Hosahalli S. Udaya、Vishnu Mishra、Tullimilli Y. Gopalakrishna、Venkataramanarao G. Anand
DOI:10.1021/acs.orglett.3c02328
日期:2023.9.15
conformation to a twisted conformation upon a systematic increase in the number of thiophene units. Octaphyrin, with 40π electrons, displayed temperature-dependent interconversion between planar and nonplanar conformations in the solution state, in contrast to the rigid planar conformation in the solid state. 60π-dodecaphyrin and 70π-tetradecaphyrin have the maximum number of π-electrons for 12- and 14-heterocycle
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.