The lowest excited triplet states of lanthanide bisphthalocyanine complexes studied by time resolved electron paramagnetic resonance

Seigo Yamauchi, Hideo Konami, Kimio Akiyama, Masahiro Hatano, Masamoto Iwaizumi

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Interplanar interactions were analysed for metal bridged phthalocyanine dimers, [NBu4][M(III)Pc2](M = Y, Yb and Lu), by using zero field splitting (ZFS) parameters in the Tj states. The observed ZFS D and a triplet lifetime decreased remarkably due to dimerization. From a comparison of D between the monomer and the dimer the interplanar interactions are divided into two types: Exciton and charge resonance. It is found that nearly 50% of the charge resonance contribution (b2) is involved in the T1 state of LuPc2. The correlations between b2, the triplet lifetime and the ionic radius of the central metal are discussed in terms of the charge resonance interaction.

Original languageEnglish
Pages (from-to)335-344
Number of pages10
JournalMolecular Physics
Volume83
Issue number2
DOIs
Publication statusPublished - 1994 Oct 10
Externally publishedYes

ASJC Scopus subject areas

  • Biophysics
  • Molecular Biology
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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