A Fourier transform infrared (FTIR) spectrometer is a device to measure infrared spectra of matter by using an interferometer as dispersing element (Michelson interferometer). Typically, a broad band infrared source emitting a wide range of wavenumbers is used (e.g., Globar) to irradiate a sample. Fourier transformation of the corresponding interferogram yields the infrared spectrum in the wavenumber domain. FTIR spectroscopy is a powerful tool to measure, e.g., high-resolution spectra of molecules in the gas phase. In this lab experiment, a table top FTIR spectrometer will be used to measure the vibrational spectra of hydrochloric acid, HCl, and its deuterated variant, DCl.
The tutorial may be downloaded here in PDF format or alternatively be obtained personally from the assistant.
- Download tutorial
- Download tutorial (german)
Dr. Sven Thorwirth – Room 306b – Tel. 0221-470-1936
Email: sthorwirth (at) ph1 (dot) uni-koeln (dot) de
- J. Michael Hollas, High Resolution Spectroscopy, 2nd edition, Wiley, 1998.
- Atkins' Physical Chemistry, 8th edition, Oxford University Press, 2006. (also later editions available)