Tohoku University
Graduate School of Science
Department of Chemistry
Synthetic and Structural Organic Chemistry
Professor Takeaki Iwamoto
Associate Professor Shintaro Ishida

Research Themes

Development of organo-main-group element compounds with novel structures, excellent physical properties, and high reactivity.

Research Overview

Our laboratory aims to contribute to the advancement of materials science by creating new classes of substances centered on main-group elements, applying these materials to functional applications, and establishing coherent frameworks that systematically explain the structures and reactivity of main-group element compounds.

Organo-main-group compounds, which contain bonds between carbon and main-group elements such as silicon, germanium, phosphorus, and boron, allow for diverse combinations of elements and bonding modes. As a result, they exhibit unique structures, reactivity, and physicochemical properties not found in conventional organic compounds. These characteristics have attracted significant attention, positioning them as a “treasure trove of properties and functions” with the potential to drive major breakthroughs in next-generation materials science.

We focus on synthesizing novel compounds that leverage the unique characteristics of organo-main-group elements and on elucidating and enhancing their superior properties and reactivity. In particular, our research is centered on: (i) the synthesis and characterization of new σ- and π-electron systems based on heavier group 14 elements such as silicon and germanium; (ii) the development of functional π-electron compounds utilizing the distinctive properties of silicon; and (iii) the study of heavier group 15 element-centered radicals ranging from phosphorus to bismuth. We place special emphasis on understanding their properties and reactivity, as well as exploring their potential applications, particularly as ligands.

Why We Chose EYELA

Our research begins with the synthesis of compounds. During synthesis, we use constant temperature circulators (chillers) and constant temperature baths with stirrers to control reaction temperatures, rotary evaporators to remove solvents from reaction mixtures, and vacuum drying ovens for sample drying. Optimization of reaction conditions inevitably involves a process of trial and error. In addition, the experiments are primarily carried out by undergraduate and graduate students who are still in the process of developing their skills. To ensure that research can be conducted smoothly and without unnecessary stress, it is essential to use equipment that is robust and highly reliable.

We rely on EYELA products because they meet these requirements. In particular, our constant temperature baths with stirrers have been in use for over 25 years, as they enable long-term temperature control and stirring with a single unit. Furthermore, we have eliminated the use of tap water for cooling and replaced it with circulating cooling systems for reflux applications, thereby avoiding the risk of water leakage.

User Feedback

The usability of the equipment meets all our expectations. We particularly appreciate the prompt support and repair services that only a domestic manufacturer can provide. Although we have been using these units for a very long time, they continue to deliver satisfactory performance through the regular replacement of consumable parts. We feel a great sense of security in the way EYELA handles after-sales service and provides information through close, attentive communication.