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- Title
Phenylene-Bridged Expanded Porphyrazines.
- Authors
Iizuka, Fumiya; Kage, Yuto; Kobayashi, Nagao; Furuta, Hiroyuki; Shimizu, Soji
- Abstract
Novel expanded porphyrazines comprising o- and p-phenylene units were synthesized from self-condensation reactions of acyclic [2+1]-type precursors prepared from 1,3-diiminoisoindoline and the corresponding phenylenediamines. Möbius and Hückel topological structures of [4+2]-type and [3+2]-type expanded porphyrazines, respectively, were elucidated by X-ray crystallography. Despite the Möbius and Hückel [4 n]π-electron systems, these expanded porphyrazines are virtually nonaromatic as a result of their flexible structures in solution, which may diminish intrinsic aromaticity and antiaromaticity.
- Subjects
PHENYLENE compounds; PORPHYRAZINES; CHEMICAL synthesis; CONDENSATION; X-ray crystallography
- Publication
ChemPlusChem, 2017, Vol 82, Issue 7, p1021
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.201600482