The distribution of outermost shell electrons, known as valence electrons, of organic molecules was observed for the first time. As the interactions between atoms are governed by the valence electrons, the findings shine light on the fundamental nature of chemical bonds, with implications for pharmacy and chemical engineering.
The distribution of outermost shell electrons, known as valence electrons, of organic molecules was experimentally observed for the first time by a team led by Nagoya University in Japan. As the interactions between atoms are governed by the valence electrons, their findings shine light on the fundamental nature of chemical bonds, with implications for pharmacy and chemical engineering.
"We named this method the CDFS method. Using this method, we observed the electron state of the glycine molecule, a type of amino acid," corresponding author Hiroshi Sawa said."Although the method was relatively simple to perform, the result was impressive. The observed electron cloud did not exhibit the smooth, enveloping shape that many predicted, but rather a fragmented, discrete state.
The fragmented electron cloud distribution observed in the experiment demonstrates the quantum mechanical wave nature of electrons, as predicted by physics. To confirm whether the observed electron cloud accurately captures the true state, they conducted advanced quantum chemical calculations in collaboration with Hokkaido University that confirmed that the experimental and theoretical results matched perfectly.
"This study has made it possible to directly visualize the essence of chemical bonds, potentially contributing to the design of functional materials and the understanding of reaction mechanisms. This is because it aids in discussing the electronic states of molecules, which are difficult to infer from just the chemical structural formula," Sawa said."It may, for example, explain why some medicines work and others don't.
Organic Chemistry Inorganic Chemistry Physics Chemistry Materials Science Graphene Quantum Physics
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