Masaki Kawano

Department of Chemistry, School of Science, Tokyo Institute of Technology
Professor
A02

Research AreasInorganic Chemistry, Coordination Chemistry
Participating Group (2020-2021)

Elucidation of Excited Structure of Luminescent Network Complex

Keywords
Coordination Polymer, Crystal Chemistry, Excited structure, Luminescence
Co-Researcher
Co- Researcher: Munetaka Iwamura (Graduate School of Science and Engineering, University of Toyama, Lecturer)
Co- Researcher: Hiroyoshi Ohtsu (Department of Chemistry, School of Science, Tokyo Institute of Technology, Assistant Professor)

Research Outline

We synthesized various porous network complexes by kinetic self-assembly of metal ions and bridging ligands by utilizing weak intermolecular interactions and investigated the relationship between unique physical properties and structures. Kinetically self-assembled network complexes are metastable soft crystals, which exhibit flexible structural changes in response to external stimuli such as mechanical force and heating. A strongly luminescent crystalline powder was obtained by heating a metastable porous network complex obtained by kinetic self-assembly of a copper complex and a tetradentate pyridine ligand. In this study, we aim to elucidate the origin of strong luminescence by determining the structure of photo-steady-state network complex by in-situ X-ray diffraction method and combining with transient absorption spectroscopy and theoretical calculation.

Enhancement of luminescence by structural change

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Contact
mkawano@chem.titech.ac.jp