Spin-crossover and LIESST Effect for Iron(III) Complex Based on π–π Stacking by Coordination Programming

DOI PDF 被引用文献3件 参考文献12件
  • Manabu Nakaya
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Kodai Shimayama
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Kohei Takami
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Kazuya Hirata
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Amolegbe Saliu Alao
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Masaaki Nakamura
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
  • Leonard F Lindoy
    School of Chemistry, The University of Sydney
  • Shinya Hayami
    Department of Chemistry, Graduate School of Science and Technology, Kumamoto University

抄録

<jats:title>Abstract</jats:title> <jats:p>Spin-crossover (SCO) iron(III) compounds, [Fe(qnal-OMe)2]PF6·acetone (1) and [Fe(qnal-OMe)2]BPh4·2MeOH (2) (qnal-OMe: 7-methoxy-1-[(8-quinolinylimino)methyl]-2-naphthalenol), were prepared and characterized by X-ray single-crystal structure analysis, temperature-dependent magnetic susceptibility, and Mössbauer spectroscopy measurements. The compounds exhibited SCO behavior with thermal hysteresis loop (T1/2↑ = 202 K, T1/2↓ = 194 K for 1 and T1/2↑ = 304 K, T1/2↓ = 194 K for 2). Moreover, the light-induced excited spin-state trapping (LIESST) effect was observed for the compounds when the samples were illuminated (1000 nm) at 5 K. We suggest that the introduction of a strong intermolecular interaction, such as π–π stacking, can play an important role in the observed dynamic phase transition.</jats:p>

収録刊行物

  • Chemistry Letters

    Chemistry Letters 43 (7), 1058-1060, 2014-04-18

    Oxford University Press (OUP)

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