NEWS
Prof. Dr. Pance Naumov vistited us to have discussion and delever a lecture
Prof. Dr. Pance Naumov (New York University Abu Dhabi) visited our laboratory.
Organic Crystal Symposium at Institute of Science Tokyo
We attended the 32nd Organic Crystal Symposium held at the Institute of Science Tokyo on October 26th and 27th.
Ishikawa gave an oral presentation and Ikeda presented a poster.
Six presentations in 14th CSJ Chemistry Festa 2024
We participated in the CSJ Chemistry Festa 2024 held at Tower Hall Funabori over three days from October 22 to 24, where we presented our recent research findings. Five students from our lab also presented their work in a poster session, and one additional invited lecture presentation was given.
RESEARCH
Our group develops stimuli-responsive molecular-based materials, such as crystals, liquid crystals, organogels and etc. We try to elucidate so far unknown responses of such materials and provide novel functionality of molecules.
Molecular-based materials exhibiting stimuli-responsivity
Molecular crystals or liquid crystals often show properties and functionality different from its individual molecule itself. This is caused by the neighboring molecules within the assembled materials which are connected through various intermolecular interactions. This indicates that the molecular-based materials can show properties/functionalities based on assembled states. Upon applying external stimulations to such materials, such as temperature change, photoirradiation and mechanical stimulations, the assembled states/molecular arrangements can change. As a result, these molecular-based materials exhibit various responses, i.e., property changes and mechanical movement.
Bridging the gap between macroscopic externals stimulation and microscopic molecular arrangement
We have reported that the molecular-based materials exhibiting emission color changes, electronic conductivity changes, and mechanical movements upon applying mechanical stimulation. These stimuli-responses are caused by the “macroscopic” mechanical force by means of a spatula or a pestle/mortar, which leading to changes in “macroscopic” molecular arrangements and patterns of intermolecular interactions. Our group tries to elucidate precise molecular arrangements within the crystals/liquid crystals to identify the effect of external stimulation, bridging the gap between macro- and microscopic information.
Publications
2024
T. Seki, T. Okada,
Chem. Eur. J., 2024, 30, 53, e202402622
DOI: 10.1002/chem.202402622.
T. Seki, S. Kobayashi, R. Ishikawa, K. Yano, T. Matsuo, S. Hayashi,
Chem. Sci., 2024, 15, 12258–12263
DOI: 10.1039/d4sc02918f.
T. Seki, K. Hattori,
RSC Adv., 2024, 14, 11, 7258–7262
DOI: 10.1039/d3ra08519h.
2023
T. Seki, D. Korenaga,
Chem. Eur. J., 2023, 29, 62, e202302333
DOI: 10.1002/chem.202302333.
