Fused Corrole Dimers Interconvert between Nonaromatic and Aromatic States through Two‐Electron Redox Reactions1. Issue 10 (8th January 2015)

• Record Type: Journal Article
• Authors: Ooi, Shota; Tanaka, Takayuki; Park, Kyu Hyung; Lee, Sangsu; Kim, Dongho; Osuka, Atsuhiro
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 10(2015)
• Page Start: 3107
• Page End: 3111
• Publication Date: 2015-01-08
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201411242
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A singly linked corrole dimer was synthesized by condensation of a dipyrromethane‐1‐carbinol with 1, 1, 2, 2‐tetrapyrroethane. Oxidation of the dimer gave doubly linked corrole dimers <bold>9</bold> and <bold>10</bold> as the first examples of fused corrole dimers involving a meso–meso linkage. Dimers <bold>9</bold> and <bold>10</bold> exhibit characteristic ¹H NMR spectra, absorption spectra, excited‐state dynamics, and two‐photon absorption (TPA) values, which indicate the nonaromatic nature of <bold>9</bold> and the aromatic nature of <bold>10</bold>. Interestingly, <bold>9</bold> is fairly stable despite its unusual 2H‐corrole structure, which has been ascribed to the presence of two direct connections between the individual corrole units.</p> </abstract>