マツモト　コウゾウ   MATSUMOTO Kouzou   松本 幸三    所属   専修大学  経営学部    職種   教授
言語種別	英語
発行・発表の年月	2019/03
形態種別	研究論文（学術雑誌）
査読	査読あり
標題	Dynamics of water molecules in 3-fold interpenetrated hydrogen-bonded organic framework based on tetrakis(4-pyridyl)methane
執筆形態	共著
掲載誌名	Journal of Physical Chemistry C
掲載区分	国外
出版社・発行元	ACS publication
巻・号・頁	123(11),pp.6599-6606
総ページ数	8
著者・共著者	Daisuke Inokuchi, Yasukazu Hirao, Kazuyuki Takahashi, Kouzou Matsumoto, Hatsumi Mori, Takashi Kubo
概要	The 3-fold interpenetration of the β-quartz-type hydrogen-bonded organic framework (HOF) from the dication salts of tetrakis(4-pyridyl)methane develops a host–guest system featuring flexibility and durability in accordance with the state change of guest molecules. Water molecules are incorporated into HOF and form a one-dimensional helical-shaped molecular chain in nanopores. X-ray crystallographic analysis and the dielectric dispersion in the impedance measurements revealed that guest water molecules behave dynamically and show a concerted freezing process to produce water pentamers at 100 K. Structural changes in the host framework mediate interactions between guest water molecules within and between the nanopores through the weak host–guest interactions based on hydrogen-bonding interaction. In addition, the triangular arrangement of nanopores gives rise to the topologically unsettled guest molecules in the freezing process.