A common supersolid skin covering both water and ice
Sun, Chang Q.
Date of Issue2014
School of Electrical and Electronic Engineering
Consistency in experimental observations, numerical calculations, and theoretical predictions have revealed that the skins of water and ice share the same attribute of supersolidity characterized by an identical H–O vibration frequency of 3450 cm−1. Molecular undercoordination and inter-electron-pair repulsion shortens the H–O bond and lengthens the O:H nonbond, leading to a dual process of nonbonding electron polarization. This relaxation–polarization process enhances the dipole moment, elasticity, viscosity, and thermal stability of these skins with a 25% density loss, which is responsible for the hydrophobicity and toughness of the water skin and results in the slippery behavior of ice.
Physical chemistry chemical physics
© 2014 The Authors. This is the author created version of a work that has been peer reviewed and accepted for publication in Physical Chemistry Chemical Physics, published by Royal Society of Chemistry on behalf of The Authors. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [Article DOI: http://dx.doi.org/10.1039/c4cp02516d].