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Tohoku University Future Global Leadership Program
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International Undergraduate Program in Chemistry ADVANCED MOLECULAR CHEMISTRY COURSE

Teaching Staff

Inorganic Chemistry It returns to a index page.
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Research Area
Research Subjects
Overview of Research

Recently, nano-sciences or nano-technologies have been attracting much attention because they show very interesting physical properties based on the non-linearity and quantum effect. There are two methods to obtain the nano-size materials, that is, "top-down" and "bottom-up" methods. The top-down method such as laser abrasion has a limitation to make particles with the sizes less than 100 nm. On the other hand, the bottom-up method is promising to control the nano-sizes since the chemical reactions are available. However, the researchers based on the bottom-up methods are not so many and such methods have not been accomplished so far. Then, we would like to focus on the bottom-up methods. As for the bottom-up methods, there are three types of the target materials such as inorganic compounds, organic compounds, and metal complexes. The inorganic compounds easily take 3-dimensional bulk structures. The organic compounds easily take 0- and 1-dimensional bulk materials. Therefore, neither inorganic nor organic compounds are suitable for the nano-sciences. On the other hand, the metal complexes easily take nano-size clusters where they are surrounded with the organic ligands. Therefore, the nano-sciences of the advanced metal complexes are more promising. The nano-sciences of advanced metal complexes are composed of four key terms as follows: 1)Organic-inorganic hybrid electronic systems, 2)Nano-sizes or nano-spaces, 3)Bottom-up or self-assembly methods, and 4)Non-linearity or quantum effect. In the field of nano-sciences of advanced metal complexes, we will focus on the multi-functionalities such as a bi-functionality between optics and conductivity, a bi-functionality between conductivity and magnetism, and a bi-functionality between magnetism and optics. These are for example, the photo-induced switching between single-chain quantum magnets and paramagnets, the conducting single-molecule quantum magnets or single-chain quantum magnets, and the conducting optical nonlinearity. These are perfectly new scientific fields.

Selected Publications
Contact Information

“Please delete “/” after “@” in a mail address.”
Masahiro YAMASHITA
(TEL +81-22-795-6544, Email: yamasita@/agnus.chem.tohoku.ac.jp)
Shinya TAKAISHI
(TEL +81-22-795-3878, Email: s-takaishi@/mail.tains.tohoku.ac.jp)
Keiichi KATOH
(TEL +81-22-795-3878, Email: kkatoh@/m.tains.tohoku.ac.jp)
Hiroaki IGUCHI
(TEL +81-795-7643, Email: h-iguchi@/m.tohoku.ac.jp)
Koichi KAGESAWA
(TEL +81-795-7643, Email: kagesawa@/m.tohoku.ac.jp)
Ryo NAKANISHI
(TEL +81-795-7643, Email: r.nakanishi@/m.tohoku.ac.jp)
Goulven COSQUER
(TEL +81-22-795-67643, Email: cosquer.g@/m.tohoku.ac.jp)
FAX +81-22-795-6548
Website: http://coord.chem.tohoku.ac.jp/~sakutai/

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