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説明:

Unique properties of water in liquid and solid phases are largely attributed to hydrogen bonding (HB)1. Traditional analysis of HB typically involves vibrational spectroscopy, where shift of the stretching frequency of covalent O-H bond correlates with the strength of HB2. However, the underlying mechanisms of this phenomenon are still debated3-5. Here we introduce a simple approximation based on an elastic dipole in external electric field, which captures a wide range of phenomena regarding HB in water systems. To this end, we use gypsum, with crystalline water embedded in heterostructure, to calibrate the HB strength through externally applied electric field. Our approach provided a coherent description on both HB and dielectric behaviour of nanoconfined water reported in the literature. In particular, it quantitatively reproduces the properties of confined water in various systems, rationalising behaviour like the reduced static permittivity observed in nanoconfined water6,7, enhancing our understanding of the importance of confined water in biological and technological systems. Finally, our work introduces hydrogen bond heterostructures (HBHs) as a new class of materials, offering electrical and chemical tunability, and a stronger, more directional bonding than that of van der Waals heterostructures.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: hydrogen bonding, nanoconfined water
, electric field tuning

刊行年月日: 2025-04-15

出版者: Springer Science and Business Media LLC

掲載誌:

• Nature Communications (ISSN: 20411723) vol. 16 issue. 1 3447

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1038/s41467-025-58608-6

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更新時刻: 2026-05-18 10:24:25 +0900

MDRでの公開時刻: 2026-05-18 12:23:09 +0900