Chemistry

Observation of an exotic state of water in the hydrophilic nanospace of porous coordination polymers

T. Ichii, T. Arikawa, et al.

This groundbreaking research conducted by Tomoaki Ichii, Takashi Arikawa, Kenichiro Omoto, Nobuhiko Hosono, Hiroshi Sato, Susumu Kitagawa, and Koichiro Tanaka uncovers an extraordinary state of water found within the nanopores of porous coordination polymers. With properties akin to solid-liquid supercritical water, this study opens up new possibilities for controlling chemical reactions and exploring solid-liquid critical points.

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Abstract

This paper reports the observation of water in an exotic state within the hydrophilic nanopores of porous coordination polymers (PCPs). Single-crystal X-ray diffraction revealed an ordered water structure reminiscent of ice, while infrared spectroscopy indicated a significant number of broken hydrogen bonds, typical of liquid water. This exotic state exhibits properties similar to predicted solid-liquid supercritical water under high pressure in hydrophobic nanospace. The findings suggest potential applications in controlling chemical reactions and provide an experimental system to study solid-liquid critical points.

Publisher

Communications Chemistry

Published On

Feb 07, 2020

Authors

Tomoaki Ichii, Takashi Arikawa, Kenichiro Omoto, Nobuhiko Hosono, Hiroshi Sato, Susumu Kitagawa, Koichiro Tanaka

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