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Selective crystallization via vibrational strong coupling

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Title: Selective crystallization via vibrational strong coupling
Authors: Hirai, Kenji Browse this author →KAKEN DB
Ishikawa, Hiroto Browse this author
Chervy, Thibault Browse this author
Hutchison, James A. Browse this author
Uji-I, Hiroshi Browse this author →KAKEN DB
Issue Date: 28-Sep-2021
Publisher: Royal Society of Chemistry
Journal Title: Chemical science
Volume: 12
Issue: 36
Start Page: 11986
End Page: 11994
Publisher DOI: 10.1039/d1sc03706d
Abstract: The coupling of (photo)chemical processes to optical cavity vacuum fields is an emerging method for modulating molecular and material properties. Recent reports have shown that strong coupling of the vibrational modes of solvents to cavity vacuum fields can influence the chemical reaction kinetics of dissolved solutes. This suggests that vibrational strong coupling might also effect other important solution-based processes, such as crystallization from solution. Here we test this hitherto unexplored notion, investigating pseudopolymorphism in the crystallization from water of ZIF metal-organic frameworks inside optical microcavities. We find that ZIF-8 crystals are selectively obtained from solution inside optical microcavities, where the OH stretching vibration of water is strongly coupled to cavity vacuum fields, whereas mixtures of ZIF-8 and ZIF-L are obtained otherwise. Moreover, ZIF crystallization is accelerated by solvent vibrational strong coupling. This work suggests that cavity vacuum fields might become a tool for materials synthesis, biasing molecular self-assembly and driving macroscopic material outcomes.
Type: article
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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