Novel homo- and heterobinuclear ball-type phthalocyanines: Synthesis and electrochemical, electrical, EPR and MCD spectral properties

Zafer Odaba, Fatih Dumluda, Ali Riza Özkaya, Seigo Yamauchi, Nagao Kobayashi, Özer Bekarolu

研究成果: Article査読

25 被引用数 (Scopus)

抄録

The mononuclear Fe(ii) phthalocyanine 2 and ball-type homobinuclear Fe(ii)-Fe(ii) and Cu(ii)-Cu(ii) phthalocyanines, 3 and 4 respectively, were synthesized from the corresponding 4,4′-[1,1′-methylenebis- (naphthalene-2,1-diyl)]bis(oxy)diphthalonitrile 1, and then ball-type heterobinuclear Fe(ii)-Cu(ii) phthalocyanine 5 was synthesized from 2. The novel compounds 4 and 5 have been characterized by elemental analysis, UV/vis, IR and MALDI-TOF mass spectroscopies. Electron paramagnetic resonance and magnetic circular dichroism measurements of 3, 4 and 5 were also examined. The voltammetric measurements of the complexes showed the formation of various electrochemically stable ligand- and metal-based mixed-valence species, due to the intramolecular interactions between the two MPc units, especially in ball-type binuclear iron(ii) phthalocyanine. Impedance spectroscopy and d.c. conductivity measurements of 4 and 5 were performed as a function of temperature (295-523 K) and frequency (40-105 Hz). While room temperature impedance spectra consist of a curved line, a transformation into a full semicircle with increasing temperature was observed for both compounds.

本文言語English
ページ(範囲)8143-8152
ページ数10
ジャーナルDalton Transactions
39
35
DOI
出版ステータスPublished - 2010 9 21
外部発表はい

ASJC Scopus subject areas

  • 無機化学

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