Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 15, Issue 26, Pages 10702-10721Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp51515j
Keywords
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Funding
- Fonds der Chemischen Industrie
- German Research Foundation [SFB 357, SFB 602, GRK 782, Su121/4-1]
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The sensitivity limitations of Fourier transform infrared (FTIR) spectroscopy for the detection of molecular clusters formed in rarefied gas expansions can be overcome by synchronizing intense gas pulses at a low duty cycle with rapid interferometer scans. This turns the broadband FTIR approach into a universal cluster spectroscopy tool applicable from the far (200 cm(-1)) to the near (8000 cm(-1)) IR. It nicely complements more selective and more restricted laser-based techniques and it provides a gas-phase variant of the matrix-isolation method, the main drawback being substance consumption. A survey over the capabilities, limitations and perspectives of this high-throughput nozzle approach to cluster FTIR spectroscopy is given.
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