Preparation and spectral and electrochemical properties of the nickel(II), palladium(II) and platinum(II) complexes of 2,3,9,10,16,17,23,24-octapropyltetrapyrazinoporphyrazine

Kazuhiro Takahashi, Yasuyoshi Aoki, Tomoyuki Sugitani, Futoshi Moriyama, Yasuhiro Tomita, Makoto Handa, Kuninobu Kasuga, Kunihisa Sogabe

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The Ni(II), Pd(II) and Pt(II) complexes with 2,3,9,10,16,17,23,24-octapropyltetrapyrazinoporphyrazinate were prepared. Their absorption spectra and cyclic voltammograms (CV) in CH2Cl2 were measured. The two absorption bands corresponding to the Q and B bands of metallophthalocyanines are observed in the 500-660 and 270-400 nm ranges, respectively. The two redox couples indicating reversible one-electron transfer processes appear in the reduction side of the CV. Irreversible oxidation with decomposition of the complex molecule was confirmed by a controlled-potential electrolysis experiment. The spectral and electrochemical properties of these complexes reflect the energy gap between the highest occupied and lowest unoccupied molecular orbitals of the ligand.

Original languageEnglish
Pages (from-to)247-249
Number of pages3
JournalInorganica Chimica Acta
Issue number2
Publication statusPublished - Nov 15 1992
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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