Ohtsu Hiroyoshi, Kim Joonsik, Kanamaru Tatsuya, Inoue Daishi, Hashizume Daisuke, Kawano Masaki
Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
Inorg Chem. 2021 Sep 6;60(17):13727-13735. doi: 10.1021/acs.inorgchem.1c02100. Epub 2021 Aug 18.
We created dual interactive sites in a porous coordination network using a CuI cluster and a rotation-restricted ligand, tetra(3-pyridyl)phenylmethane (3-TPPM). The dual interactive sites of iodide and Cu ions can adsorb I via four-step processes including two chemisorption processes. Initially, one I molecule was physisorbed in a pore and successively chemisorbed on iodide sites of the pore surface, and then the next I molecule was physisorbed and chemisorbed on Cu ions to form a cross-linked network. We revealed the four-step I diffusion process by single-crystal X-ray structure determination and spectroscopic kinetic analysis.
