ABSTRACT
The powerful combination of in situ spectroscopic and electrochemical techniques are referred to as spectroelectrochemical methods. Such experiments have long been important tools in the investigation of organic, inorganic and biological systems. Spectroelectrochemical results are particularly helpful in the characterisation of short-lived intermediates and when redox products are unstable. To date, the most used solution spectroscopic technique combined with the electrochemical experiment is uv/vis detection, due to the simplicity of the experimental set-up. However numerous spectroscopic techniques have been used successfully, for example, IR [1-13], luminescence [14], epr, nmr [15], CD [16-18], Raman [19,20], X-ray absorption spectroscopy [21], XANES [22]. An IUPAC review of in situ spectroelectrochemical techniques was published in 1998 [23,24]. This report will concentrate on uv/vis/nir and epr in situ spectroelectrochemistry with detailed studies taken from the authors' laboratories.
