Lipid-packaged linear iron(II) triazole complexes in solution: Controlled spin conversion via solvophobic self-assembly

Hiroyuki Matsukizono, Keita Kuroiwa, Nobuo Kimizuka

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52 Citations (Scopus)


Linear Fe(II) 1,2,4-triazole complexes with lipid counteranions are newly developed. These complexes show sharp and reversible spin conversion in toluene, with temperatures significantly higher (by 20-100 K) than the spin crossover temperatures observed in the crystalline states. This is accounted for in terms of increased metal-ligand interactions in organic media, which is caused by solvophobic compaction of charged coordination chains. In atomic force microscopy, developed nanowires are observed for low spin (LS) complexes. On the other hand, fragmented nanostructures are seen for high spin (HS) complexes, indicating that the spin conversion in solution is governed by a self-assembly process. The lipid packaging of charged coordination chains thus provides powerful means to improve and regulate their functions via solvophobic self-assembly.

Original languageEnglish
Pages (from-to)5622-5623
Number of pages2
JournalJournal of the American Chemical Society
Issue number17
Publication statusPublished - Apr 30 2008


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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