Conformational Change in Molecular Assembly of Nickel(II) Tetra(n-propyl)porphycene Triggered by Potential Manipulation

Soichiro Yoshimoto, Teppei Kawamoto, Toru Okawara, Yoshio Hisaeda, Masaaki Abe

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Metal-coordinated porphyrin and related compounds are important for developing molecular architectures that mimic enzymes. Porphycene, a structural isomer of porphyrin, has shown unique properties in semiartificial myoglobin. To explore its potential as a molecular building block, we studied the molecular assembly of nickel(II) tetra(n-propyl)porphycene (NiTPrPc), a metalloporphycene with introduced tetra n-propyl moieties, on the Au(111) electrode surface using in situ scanning tunneling microscopy. Because of the low molecular symmetry of NiTPrPc, the molecular assembly undergoes unique phase transitions due to conformational change of the n-propyl moieties. The phase transitions can be precisely controlled by the electrode potential, demonstrating that the latter can play an important role in the porphycene molecular assembly on Au surface. This new discovery indicates possible uses of this porphycene framework in molecular engineering.

    Original languageEnglish
    Pages (from-to)13635-13639
    Number of pages5
    JournalLangmuir
    Volume32
    Issue number51
    DOIs
    Publication statusPublished - Dec 27 2016

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Spectroscopy
    • Electrochemistry

    Fingerprint

    Dive into the research topics of 'Conformational Change in Molecular Assembly of Nickel(II) Tetra(n-propyl)porphycene Triggered by Potential Manipulation'. Together they form a unique fingerprint.

    Cite this