Organic-Inorganic Hybrid Structure Research Laboratory

Y. Koide

Yoshihiro Koide

Office: 23-819 Ext.: 3888


1993, Ph.D., Department of Chemistry, Univ. of North Carolina at Chapel Hill

Y. Matsubara

Yasuo Matsubara
(Assistant Professor)

Laboratory: 23-825 Ext.: 3900


2009, Ph.D., Department of Chemistry, Tokyo Institute of Technology

Research Field

Inorganic Photochemistry, Chemistry of Aluminum Complexes, Electrochemistry, Renewable Energy.

Research Overview

Research into the synthesis and properties of photofunctional main group and transition metal complexes. Development of molecular catalysts that activate CO2 and convert it to useful products. Mechanochemical synthesis of Al-containing hybrid materials.

Research Subjects

  • 1.Thermal and photochemical reactivity of hydride complexes.
  • 2.Synthesis of novel aluminum-cage complexes.
  • 3.Construction of artificial photosynthetic systems for organic semiconductor-transition metal hybrid materials.
  • 4.Fundamental research into molecular catalysts for CO2 activation and conversion.

Research Highlights:

Recently, research has focused on artificial photosynthetic systems because of the urgent need to build a fossil-fuel-free society. Photosynthesis harnesses solar energy to separate electrons from water, and then uses them in the two-electron reduction of the coenzyme NADP+, which serves as the electron source for the carbon fixation cycle. Thus, artificial photosynthesis at ambient temperatures and pressures is the holy grail of environmentally benign renewable energy. Important chemical steps involved in photosynthesis are 1) extraction of electrons from water using solar energy; and 2) the photoinduced single-electron transfer reaction that becomes the two-electron reduction reaction via the formation of hydride complexes. In our lab, we are constructing integrated chemical systems that can use photoenergy, for example, transition metal complexes that store photoenergy in their chemical bonds. Details of our work can be found in the following references.

  • 1) “Electrocatalytic CO2 reduction with a homogeneous catalyst in ionic liquid: high catalytic activity at low overpotential,” Journal of Physical Chemistry Letters, vol. 5, pp. 2033–2038 (2014).
  • 2) “Reactivity of a fac-ReCl(α-diimine)(CO)3 complex with an NAD+ model ligand toward CO2 reduction,” Chemical Communications, vol. 50, pp. 728–730 (2014).
  • 3) “Thermodynamic and kinetic hydricity of ruthenium(II) hydride complexes,” Journal of the American Chemical Society, 134, pp., 15743–15757 (2012).
Affiliated Academic Organizations

Y. Koide:
The Chemical Society of Japan, The American Chemical Society, Japanese Society of Coordination Chemistry, and The Japanese Photochemistry Association.

Y. Matsubara:
The Chemical Society of Japan, The American Chemical Society, Japanese Society of Coordination Chemistry, The Photo- functional Complexes Research Association Japan, and Forum on Low-Dimensional Photo-functional Materials.

Current members
◯ Professors: 1 ◯ Assistant Professors: 1
◯ Undergraduates: 12