Abstract
Dianilinotripyrrin was condensed with phenylboronic acid at high temperature to give its phenylboron(III) complex in which the conjugation system changed to serve as a divalent ligand. As a result, two aniline moieties form an intramolecular hydrogen bond between the NH and iminic N sites, fixing the conformation to stand as a closed macrocycle. The structure of this macrocycle contains both cone-shaped boron center and helical terminal moieties. The twisted helical moieties can be perturbed by the substituents at the aniline moiety, while the optical properties are not drastically altered thereby. [Formula: see text]-Phenylene-bridged face-to-face dimer was also synthesized by the same approach, which exhibited negligible electronic communication between the chromophores.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
