We have designed and constructed a novel gas cell for infrared spectroscopic studies. Detailed features of the cell are described. Gas-phase spectra have been obtained for N-methylacetamide, camphorolactam, and acetyl-L-alanine-N-methylamide at elevated temperatures and high vacuum. The results show highly resolved spectra for <i>cis</i> and <i>trans</i> amide bonds.

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