Max-Planck-Institut für Polymerforschung, Abteilung für Molekulare Spektroskopie, Ackermannweg 10, 55128 Mainz (Germany).
Angew Chem Int Ed Engl. 2015 May 4;54(19):5560-76. doi: 10.1002/anie.201411188. Epub 2015 Apr 15.
Water interfaces provide the platform for many important biological, chemical, and physical processes. The water-air interface is the most common and simple aqueous interface and serves as a model system for water at a hydrophobic surface. Unveiling the microscopic (<1 nm) structure and dynamics of interfacial water at the water-vapor interface is essential for understanding the processes occurring on the water surface. At the water interface the network of very strong intermolecular interactions, hydrogen-bonds, is interrupted and the density of water is reduced. A central question regarding water at interfaces is the extent to which the structure and dynamics of water molecules are influenced by the interruption of the hydrogen-bonded network and thus differ from those of bulk water. Herein, we discuss recent advances in the study of interfacial water at the water-air interface using laser-based surface-specific vibrational spectroscopy.
水界面为许多重要的生物、化学和物理过程提供了平台。水-空气界面是最常见和最简单的水相界面，是疏水表面上水的模型体系。揭示水汽界面上水的微观(<1nm)结构和动力学对于理解发生在水面上的过程至关重要。在水界面上，非常强的分子间相互作用氢键网络被打断，水的密度降低。关于界面上水的一个核心问题是，水分子的结构和动力学在多大程度上受到氢键网络中断的影响，从而与体相水有所不同。本文讨论了利用基于激光的表面特定振动光谱研究水-空气界面上水的最新进展。
