Professor Tamiki Komatsuzaki of Hokkaido University and others have collaborated with Nara Women's University and Tohoku University to theoretically predict the existence of a switch that switches substances that can result in chemical reactions.This time, we are studying a very simple reaction using hydrogen atoms, but we can expect to find a way to control the general destination of chemical reactions in the future.

 The chemical reaction of an atom or molecule is likened to the movement of energy on a contour map called potential.In other words, the chemical reaction starts at the energetically stable foot, crosses the pass, and moves to another foot.For example, in the reaction in which electrons move away from the hydrogen atom investigated this time, when energy is given to the atom to bring it to a high-energy state, the electrons move away from the nucleus.At this time, at first, ascending the slope of the potential and crossing the pass, the electrons are completely separated.As a result of theoretical analysis of this phenomenon, it was discovered that various branched routes appear when approaching the vicinity of the pass.It was also found that this path is related to the direction of the magnetism applied from the surroundings.In other words, the direction in which electrons move away from the nucleus can be freely controlled by manipulating magnetism.

 Although it has not been verified by experiments yet, we are planning to conduct experiments to verify the validity of this theory in the future.Although the subject of this analysis was an extremely simple reaction, it is theoretically universally valid, and it is expected that bifurcation can be switched even for more complicated chemical reaction pathways.In mass production such as pharmaceuticals, it is a problem that by-products are generated in addition to the target substance, but if it becomes possible to control chemical reactions in the future, it will be possible to produce only the target substance. maybe.

Source:[Hokkaido University] Elucidation of the existence of a "changeover switch" that converts the destination of a chemical reaction

Nara Women's University

To be a dignified and shining female leader

The predecessor of Nara Women's University was "Nara Women's Higher Normal School", which was opened in 1909.Currently, we have three faculties with well-balanced arrangements of the Faculty of Letters, the Faculty of Science, the Faculty of Living Environment, and the Faculty of Engineering. Event […]

Tohoku University

Create excellent research results that will be the source of innovation, and develop talented human resources who will lead the next generation

Tohoku University has a rich culture and humanity based on the tradition of "research first principle" since its opening, the idea of ​​"opening the door" and the spirit of "respect for practical science", and is a phenomenon of human beings, society and nature. In response to this, human resources with the ability to carry out intellectual exploration with a "scientific mind", demonstrating their expertise in various fields from an international perspective and leading […]

Hokkaido University

Strong cooperation with industry and regions "Practical science unique to Hokkaido University" leads the world

The origin of Hokkaido University dates back to Sapporo Agricultural College, which was established in 1876.Throughout its long history, we have cultivated the basic principles of "frontier spirit," "cultivating internationality," "education for all," and "emphasis on practical studies."Based on this philosophy, he has a high level of academic background that is internationally accepted, and has accurate judgment and a leader […].

University Journal Online Editorial Department

This is the online editorial department of the university journal.
Articles are written by editorial staff who have a high level of knowledge and interest in universities and education.
For inquiries and opinions regarding the content of articles, etc. hereThank you.