报告摘要

The design of organometallic catalysts based on new concepts has the potential to revolutionize synthetic chemistry. This presentation discusses our recent works on the development of metal catalysts beyond simple molecules, utilizing the macroscopic reaction spaces created by organic polymers, supramolecules, and organic-inorganic hybrid materials. Specifically, we newly synthesized the polystyrene-cross-linking phosphines for selective formation of metal/ligand 1:1 complexes,¹ insulated π--conjugated bipyridines featuring an extended π-conjugated system and remote steric effects,² and organic-inorganic hybrid supramolecular catalysts for small-molecule transformation.^3,4 These strategies enabled efficient molecular transformations that were difficult to achieve with existing catalysts.

Reference:

1.

(a) Iwai, T.; Harada, T.; Hara, K.; Sawamura, M. Angew. Chem., Int. Ed. 2013, 52, 12322.

(b) Iwai, T.; Harada, T.; Shimada, H.; Asano, K.; Sawamura, M. ACS Catal. 2017, 7, 1681.

(c) Nishizawa, A.; Takahira, T.; Yasui, K.; Fujimoto, H.; Iwai, T.; Sawamura, M.; Chatani, N.; M. Tobisu, J. Am. Chem. Soc. 2019, 141, 7261.

2. Iwai, T.; Abe, S.; Takizawa, S.; Masai, H.; Terao, J. Chem. Sci. 2024, 15, 8873.

3. Jiang, Q.; Iwai, T.; Jo, M.; Hosomi, T.; Yanagida, T.; Uchida, K.; Hashimoto, K.; Nakazono, T.; Yamada, Y.; Kobayashi, A.; Takizawa, S.; Masai, H.; Terao, J. Small 2024, 20, 2403717.

4. Yamaguchi, S.; Iwai, T.; Miyagishi, H.; Masai, H.; Hosomi, T.; Yanagida, T.; Uchida, K.; Terao, J. Nanoscale 2025, 17, 13207.

报告人简介

Tomohiro Iwai received his Bachelor (2006) and Master (2008) of Science degrees from Hokkaido University, Japan. He received his Ph.D. degree from Kyoto University in 2011 under the supervision of Professor Yasushi Tsuji. At the same year, he was appointed as an Assistant Professor at Hokkaido University (2011–2020). Since 2020, he has been affiliated as a Lecturer at the University of Tokyo in the Department of Basic Science, Graduate School of Arts and Sciences. He received the Encouragement Award from Hokkaido Branch of the Chemical Society of Japan (2018), ACP Lectureship Award (China, 2019), Young Scholar Lecture of the Chemical Society of Japan (2020), and Chemist Award BCA 2021 (MSD Life Science Foundation). His research interest is on the development of highly efficient metal catalysis based on ligand design.

Research field: Organometallic Chemistry; Supramolecular Chemistry; Organic-Inorganic Hybrid Materials