Recent Advances in Subporphyrins and Triphyrin Analogues: Contracted Porphyrins Comprising Three Pyrrole Rings

Research output: Contribution to journalReview article

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Abstract

Subporphyrinato boron (subporphyrin) was elusive until the syntheses of tribenzosubporphine in 2006 and meso-aryl-substituted subporphyrin in 2007. These novel contracted analogues possess a 14 electron conjugated system embedded in a bowl-shaped structure. They exhibit absorption and fluorescence in the UV/vis region and nonlinear optical properties due to their octupolar structures. The unique coordination geometry around the central boron atom in the structure of subporphyrin enabled investigation of rare boron species, such as borenium cations, boron hydrides, and boron peroxides. Along with the burgeoning development of the chemistry of subporphyrins, analogous triphyrin systems have also emerged. Their rich coordination chemistry as a result of their free-base structures, which are different from the boron-coordinating structure of subporphyrins, has been intensively investigated. On the basis of the unique structures and reactivities of subporphyrins and their related triphyrin analogues, supramolecular architectures and covalently linked multicomponent systems have also been actively pursued. This Review provides an overview of the development of subporphyrin and triphyrin chemistry in the past decade and future prospects in this field, which may inspire molecular design toward applications based on their unique properties.

Original languageEnglish
Pages (from-to)2730-2784
Number of pages55
JournalChemical Reviews
Volume117
Issue number4
DOIs
Publication statusPublished - Feb 22 2017

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Pyrroles
Boron
Porphyrins
Boranes
Peroxides
Embedded systems
Cations
Optical properties
Fluorescence
Atoms
Geometry
Electrons

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

Recent Advances in Subporphyrins and Triphyrin Analogues : Contracted Porphyrins Comprising Three Pyrrole Rings. / Shimizu, Soji.

In: Chemical Reviews, Vol. 117, No. 4, 22.02.2017, p. 2730-2784.

Research output: Contribution to journalReview article

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