A One-pot, One-step, High-yield Reaction Leading to Metal-Metal Dimacrocycles: The Phthalocyanine Dimer with a Direct Si-Si Linkage

Nagao Kobayashi, Fumio Furuya, Gyeong Chang Yug

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new concept widely applicable in organometallic chemistry has been introduced for the preparation of cofacial macrocyclic dimers or oligomers. The most notable feature is the use of dimetal or oligometal salts/compounds as templates. In order to exemplify the advantage of this method, a cofacial diphthalocyanine linked by an Si-Si bond has been synthesized in 30% yield in a one-step reaction using hexachlorodisilane as a template and characterized. The cofacial dimer structures are supported by various spectroscopic techniques, including electronic absorption, magnetic circular dichroism, nuclear magnetic resonance and differential pulse voltammetry. However, the unusual phenomenon of a red shift of the main band in the Soret band region was observed.

Original languageEnglish
Pages (from-to)433-438
Number of pages6
JournalJournal of Porphyrins and Phthalocyanines
Volume3
Issue number6-7
DOIs
Publication statusPublished - 1999 Jan 1

Keywords

  • Cofacial diphthalocyanine
  • Si-Si linkage
  • Template reaction

ASJC Scopus subject areas

  • Chemistry(all)

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