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Pt(dithiolene)-Based Colorimetric Chemosensors for Multiple Metal-Ion Sensing

Author

Listed:
  • Heawon Son

    (Department of Chemistry, Seoul Women’s University, Seoul 01797, Korea
    These authors contributed equally to this paper.)

  • Seohyeon Jang

    (Department of Intelligent Energy and Industry, School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea
    Department of Advanced Materials Engineering, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea
    These authors contributed equally to this paper.)

  • Gayoung Lim

    (Department of Chemistry, Seoul Women’s University, Seoul 01797, Korea)

  • Taeyong Kim

    (Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA
    Present address: Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.)

  • Inho Nam

    (Department of Intelligent Energy and Industry, School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea
    Department of Advanced Materials Engineering, Institute of Energy Converting Soft Materials, Chung-Ang University, Seoul 06974, Korea)

  • Dong-Youn Noh

    (Department of Chemistry, Seoul Women’s University, Seoul 01797, Korea)

Abstract

Colorimetric chemosensors are widely employed for in-field analysis to detect transition metal ions in real-time with the naked eye. Colorimetric chemosensors have attracted considerable attention because they can conveniently provide quantitative and qualitative information at a low cost. However, the development of colorimetric chemosensors for multiple-ion sensing where metal cations coexist has been limited. For this reason, we developed a new type of transition metal ion sensing material by selectively replacing functional groups on (diphosphine)Pt(dmit) molecules. The terminal groups of the diphosphine ligand were successfully substituted by the cyclohexyl groups, increasing the electron density of the thione moiety. Due to the electron donation ability of the cyclohexyl terminal groups, the proposed chemosensing material was able to selectively detect the mixture of Hg 2+ , Cu 2+ , and Ag + in the presence of many types of interfering cations. To gain insight into the binding mechanisms between the metal ions and the developed (dchpe)Pt(dmit) molecule, density functional theory calculations were also performed.

Suggested Citation

  • Heawon Son & Seohyeon Jang & Gayoung Lim & Taeyong Kim & Inho Nam & Dong-Youn Noh, 2021. "Pt(dithiolene)-Based Colorimetric Chemosensors for Multiple Metal-Ion Sensing," Sustainability, MDPI, vol. 13(15), pages 1-15, July.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:15:p:8160-:d:598723
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