Application of continuous wave quantum cascade laser in combination with CIVP spectroscopy for investigation of large organic and organometallic ions

Rapidly developing mid-infrared quantum cascade laser (QCL) technology gives easy access to broadly tunable mid-IR radiation at a modest cost. Despite several applications of QCL in the industry, its usage for spectroscopic investigation synthetically relevant organic compounds has been limited. Here, we report application an external cavity, continuous wave, cryogenic ion vibrational predissociation spectroscopy analyze set large molecules, organometallic complexes, and isotopically labeled compounds. The obtained spectra test molecules are characterized by high signal-to-noise ratio low full width half-maximum-values, allowing assignment two with just few wavenumber difference. Data generated cw-QCL produced another standard Nd:YAG difference-frequency generation system compared discussed.