Miniaturized cell for spectroelectrochemical studies at the liquid-liquid interface

This dataset contains all electrochemical and spectroelectrochemical measurements associated with the development and validation of a miniaturised electrochemical cell for ion‑ and electron‑transfer studies at the interface between two immiscible electrolyte solutions (ITIES). The dataset supports the results described in the accompanying manuscript and includes raw data files, processed data, and high‑resolution figures. All measurements were performed using a macroscopic water/1,2-dichloroethane (DCE) interface in a cell constructed from a standard spectrophotometric cuvette and a modified glass Pasteur pipette. The dataset encompasses ion-transfer voltammetry, electron-transfer studies using model redox couples, and spectroelectrochemical characterisation.