Synthesis of multicomponent systems composed of one phthalocyanine and four terpyridine ligands

M. Kimura, T. Hamakawa, K. Hanabusa, H. Shirai, N. Kobayashi

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


Two phthalocyanine-based multiple ligands were synthesized and characterized. Photochemical and electrochemical properties were measured for zinc(II) phthalocyanines covalently linked with four ruthenium(II) bisterpyridyl complexes. The absorption and electrochemical results are indicative of electronic interaction between two photoactive and redox-active components. Fluorescence spectroscopy of the five nuclear complexes provides evidence of an efficient photoinduced intramolecular energy transfer between the ruthenium-based metal-to-ligand charge-transfer (MLCT) chromophores and the zinc(II), phthalocyanine core. The absorption and fluorescence spectra of the phthalocyanine-based multiple ligands change dramatically as a result of the coordination of metal ions with peripheral terpyridine ligands. This change of fluorescence intensity upon addition of metal ions can apply to an output signal for metal ion sensing. The direct attachment of metal ion receptors with a zinc phthalocyanine core enhanced efficiency of the energy- and electron-transfer reaction from the core to the metal complexes.

Original languageEnglish
Pages (from-to)4775-4779
Number of pages5
JournalInorganic chemistry
Issue number18
Publication statusPublished - 2001 Aug 27

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


Dive into the research topics of 'Synthesis of multicomponent systems composed of one phthalocyanine and four terpyridine ligands'. Together they form a unique fingerprint.

Cite this