Reseach Overview 

Our research centers on the molecular design, synthesis, and functional exploration of π-conjugated molecular systems, with a particular emphasis on fullerenes and nanocarbon-derived architectures. Such π-conjugated frameworks exhibit distinctive properties arising from unique geometry, enabling emergent electronic and photophysical behaviors beyond those of conventional organic molecules.

  A major focus is the presice structural manipulation of fullerene cages, achieved through the development of cascade reaction systems and tether-directed regioselective transformations. These approached provide access to fascinating nanocarbon scaffolds.  It has  been demonstrated that the introduction of precisely engineered orifices into fullerene cages enables the encapsulation of small organic molecules such as hydrogen, water, and methane.  In addition, endohedral fullerenes incorporating isolated metal atoms and metal clusters have also been successfully synthesized.  Leveraging the unique three-dimensional π-conjugated cage framework of fullerenes provides a powerful molecular platform for probing the intrinsic behavior of individual atoms, ions, and molecules confined within well-defined nanoscopic environments.

  In parallel, we investigate the noncovalent interactions on fullerene surfaces, which govern the macroscopic properties and functions. To quantitatively explore these subtle interactions, we employ a molecular torsion balance system and systematically evaluate the effects of polarity, dipole moment, polarizability, and charge on intermolecular forces. 

   By integrating synthetic chemistry, spectroscopy, computational chemistry, and materials evaluation, we aim to reveal the governing principles underlying structure—property relationships in π-conjugated nanocarbon systems. The resulting knowledge provides a foundation for next-generation applications, including organic photovoltaics, molecular recognition, inhibitors, and supramolecular assemblies. Ultimately, our goal is to establish a new paradigm for molecularly programmable nanocarbon materials, in which structure, reactivity, and function are designed in harmony at the atomic scale.