Spectra of Adsorbed Species in Nonaqueous Media

The spectra of adsorbed species are much easier to obtain in nonaqueous media, as organic solvents generally absorb infrared radiation far less than water. It is possible, with judicious selection of the solvent, to work with solution thicknesses greater than 50 iim. Most of the work in aprotic solvents has been done by Pons et a/., using SNIFTIRS (Table Vllb). 

FIGURE 43. SNIFTIRS spectra of 0.1 M tetrabutylammonium tetrafluoroborate in anhydrous acetonitrile for different potential pulses (Pt electrode, potential limits of the pulse in volts as indicated), according to Pons et 

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