| 研究実績の概要 |
Recently, organic-inorganic hybrids materials have been researchers’ interest due to their tunable structure and switching physical properties. Solid-state hybrid materials are very promising in the field for fundamental and applied sciences.
I prepared halogen-bridged 1D Pd/Pt chain complexes (MX-chain) as multifunctional materials. Pd and Pt-based MX-chain complexes usually show M(II)/M(IV) mixed-valance (MV) state due to the small on-site coulomb repulsion. I developed new method for realize uncommon Pd(III) AV state, [Pd(dabdOH)2Br]Br2 (dabdOH =(2S,3S)-2,3-diaminobutane-1,4-diol), so-called "multiple-hydogen-bond” approach (J. Am. Chem. Soc. 2017, 39, 6562). Electronic state Pt ions are in MV state using same strategy. However, this method is very promising for shortening metal-metal distance, resulting good conducting materials (Inorg. Chem, 2019, 58, 114). Moreover, this method is also applicable for large size counters anion. Pd(III) ions was isolated with sulfate ions via this method (CryEngComm, 2020, Submitted).
Currently, I extended my work into two or three-dimensional (2D or 3D) hybrid materials (MOFs). I was able to growth and control copper nano particle (CuNPs) size into MOFs. For example, NU-901 and NU-907, with distinct pore diameters that serve as templates for the controlled growth of CuNPs of different sizes (~1.5 nm and ~0.9 nm, respectively). These MOF-supported CuNPs were shown to be competent catalysts for selective acetylene semihydrogenation with a TOF of 13.5 and 7.7 h-1, respectively (Chem. Mat. 2020, 10.1021/acs.chemmater.0c00059).
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