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

Research output: Contribution to journalArticle

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Abstract

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 CH 2 Cl 2 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
Volume201
Issue number2
DOIs
Publication statusPublished - Nov 15 1992
Externally publishedYes

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Palladium
Platinum
Nickel
Electrochemical properties
palladium
Absorption spectra
platinum
nickel
absorption spectra
preparation
Molecular orbitals
electrolysis
Electrolysis
molecular orbitals
electron transfer
Energy gap
Ligands
methylidyne
Decomposition
decomposition

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

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

In: Inorganica Chimica Acta, Vol. 201, No. 2, 15.11.1992, p. 247-249.

Research output: Contribution to journalArticle

Takahashi, Kazuhiro ; Aoki, Yasuyoshi ; Sugitani, Tomoyuki ; Moriyama, Futoshi ; Tomita, Yasuhiro ; Handa, Makoto ; Kasuga, Kuninobu ; Sogabe, Kunihisa. / 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. In: Inorganica Chimica Acta. 1992 ; Vol. 201, No. 2. pp. 247-249.
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T1 - 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

AU - Takahashi, Kazuhiro

AU - Aoki, Yasuyoshi

AU - Sugitani, Tomoyuki

AU - Moriyama, Futoshi

AU - Tomita, Yasuhiro

AU - Handa, Makoto

AU - Kasuga, Kuninobu

AU - Sogabe, Kunihisa

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AB - 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 CH 2 Cl 2 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.

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