The Araki Group
Functional Organic Materials Chemistry

Department of Chemistry & Biotechnology
School of Engineering, The University of Tokyo

Koji Araki

Recent Publications

  • ACS Appl. Mater. Interfaces 2011, 3, 654-657. [PDF]
  • J. Mater. Chem. 2012, 22, 20065-20070. [PDF]
  • Langmuir 2011, 27, 8653–8658. [PDF]
  • J. Am. Chem. Soc. 2012, 134, 15684-15687. [PDF]


Efficient molecular systems and finely-tuned supramolecular architectures are the secret of surprisingly high functionality of living systems. Based on this concept, we are studying bottom-up fabrication of novel functional supramolecular materials by rational molecular design of organic compounds.

Structural and functional design of supra-molecular assemblies :

In order to explore a novel design concept for fabrication of hydrogen bond-directed supramolecular assemblies, highly stable 2-D hydrogen bond-directed supra-molecular capsules (figure) and films of nucleoside derivatives, novel hydrogen bond-based gelators for varieties of solvents, and other molecular assemblies are studied.

Design of organic photo-functional materials :

Development of novel luminescent organic materials, search for a new design principle to realize molecular packing-directed emission tuning (upper figure), and development of thermochromic and piezochromic (lower figure) luminescent materials are the current subjects of study.


Design of functional metal complexes :

High-performance metal complex-type molecular devices composed of a photoenergy transfer system and a photo-emitting unit are designed and synthesized.