Synthesis, Optical Properties, and Electrochemical Behavior of 5,10,15,20-Tetraaryl-5,15-diazaporphyrin-Amine Hybrids

Yuna Satoh, Yutaro Fujita, Naoya Muramatsu, Ko Furukawa, Tadaaki Ikoma, Mao Minoura, Haruyuki Nakano, Yoshihiro Matano

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This work reports a series of covalently linked hybrids comprising 5,10,15,20-tetraaryl-5,15-diazaporphyrinoids (M-TADAP; M = Ni, Zn, Cu) and amines. M-TADAP-amine hybrids were prepared via the metal-templated cyclization of the corresponding metal(II)-dipyrrin complexes and redox reactions on the DAP unit. In the UV/vis/near-IR absorption spectra of the hybrids containing an 18π-electron DAP ring, broad charge-transfer bands were observed, reflecting the electron-donating property of the para-aminophenyl groups and the electron-accepting property of the 18π TADAP dication. The electrochemical behavior of the M-TADAP-amine hybrids was strongly dependent on the structure of the peripheral amine units. Further electrochemical oxidation of the hybrids bearing N-Ph groups conceivably generated amine-centered radicals, which sequentially underwent irreversible coupling to form benzidine-linked M-TADAP polymer films. The Ni-TADAP-benzidine polymer exhibited the electric conductivity of 2×10−3 S m−1.

Original languageEnglish
Pages (from-to)1476-1486
Number of pages11
Issue number10
Publication statusPublished - Oct 2021

All Science Journal Classification (ASJC) codes

  • General Chemistry


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