In this issue of Chem, Paesani and co-workers present a computational analysis of sum-frequency generation (SFG) spectra of water to disentangle the interfacial χ⁽²⁾ and bulk χ⁽³⁾ contributions. SFG line shapes are in good agreement with experimental results. The analysis reveals the molecular response of interfacial water, which is usually masked by the bulk water spectra at the water-charged surfactant interface.

中文翻译：

---

通过表面特定振动技术探测双电层

在本期《化学》杂志中，Paesani及其同事对水的和频生成（SFG）谱进行了计算分析，以解开界面χ ^（2）和体积χ ^（3）的贡献。SFG线形与实验结果非常吻合。该分析揭示了界面水的分子反应，该反应通常被带水表面活性剂界面处的总体水光谱所掩盖。