Reentrant Gel-Sol-Gel transition of a lipophilic Co(II) coordination polymer

Hisanori Nagatomi, Nobuhiro Yanai, Nobuo Kimizuka

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    A reentrant gel-sol-gel phase transition in organic media is achieved for a single-component, thermoresponsive Co(II)-based coordination polymer bridged by suitably designed lipophilic 1,2,4-triazole ligands. Its green chloroform solution at room temperature turns into a blue gel upon heating, whereas it is transformed to a yellow gel by cooling. These unique thermal phase transitions are reversible and occur all by themselves, which originate from the simultaneous pursuit of entropy-driven changes in coordination structures and enthalpydriven interactions between the coordination polymers.

    Original languageEnglish
    Pages (from-to)97-99
    Number of pages3
    JournalChemistry Letters
    Issue number1
    Publication statusPublished - 2018

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)


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