Professor Yoichi Kobayashi and his colleagues’ research results have been published in Angewandte Chemie International Edition

A research team that includes Professor Yoichi Kobayashi (RARA Fellow), Assistant Professor Yuki Nagai of the College of Life Sciences of Ritsumeikan University, and Genki Kawai, who was, at the time of the study, a master’s student of the Graduate School of Life Sciences of Ritsumeikan University, has, in collaboration with Professor Jiro Abe of the College of Science and Engineering of Aoyama Gakuin University, discovered the occurrence of a photochromic reaction in rhodamine spirolactam derivatives, which can be easily synthesized from commercially available reagents. The main research finding indicates that coloring efficiency increases with the intensity of light during this reaction. Hence, the research is expected to contribute to the development of both photo-functional materials that effectively utilize low-energy light and high spatial resolution in light-related technologies such as photolithography.

The research results have been published in Angewandte Chemie International Edition and was selected to appear on the publication’s front cover.

Paper title: Nonlinear Photochromic Reaction Based on Sensitizer-Free Triplet-Triplet Annihilation in a Perylene-Substituted Rhodamine Spirolactam
Authors: Genki Kawai, Dr. Yuki Nagai, Kanna Tsuji, Dr. Yoshinori Okayasu, Prof. Jiro Abe, Dr. Yoichi Kobayashi
Publication journal: Angewandte Chemie International Edition
Publication date: April 10, 2024, 19:00 (JST)
URL: https://doi.org/10.1002/anie.202404140