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Doubly N‐Confused [36]Octaphyrin(1.1.1.1.1.1.1.1): Isomerization, Bis‐Metal Coordination, and Topological Chirality
Author(s) -
Mitsuno Koki,
Yoshino Takafumi,
Gupta Iti,
Mori Shigeki,
Karasawa Satoru,
Ishida Masatoshi,
Furuta Hiroyuki
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201708253
Subject(s) - isomerization , chirality (physics) , conformational isomerism , enantiomer , crystallography , metal , circular dichroism , chemistry , vibrational circular dichroism , crystal structure , conjugated system , stereochemistry , materials science , molecule , catalysis , physics , polymer , chiral symmetry , organic chemistry , quantum mechanics , nambu–jona lasinio model , quark , biochemistry
A novel [36]octaphyrin analogue embedding two N‐confused pyrrole units demonstrated unique prototropy‐coupled isomerization between the Figure‐of‐eight and dumbbell conformers. Upon bis‐metal coordination, fixation of fully π‐conjugated Figure‐of‐eight structures was achieved as referred from the X‐ray crystal structure. Chirogenesis of the helical enantiomers was proved by intense circular dichroism (CD) response in the near infrared (NIR) region.