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A new spray sampling method (DSD) exploited in the measurement of infrared absorption of amino acids and dipeptides has resulted in a third category of spectra. They display qualitative similarities to the resolved bands obtained in the vapor and low-temperature inert-gas isolated matrix, and on the other hand have some common vibrational frequencies with the solution and alkali halide pressed pellet...
The infrared absorption spectra of glycine and the dipeptide glycylglycine have been measured using a novel spray-sampling technique which leads to better resolved spectra than the traditional crystal and solution methods. Spectra were recorded for a number of different alkali halide matrices. Theoretical predictions of the spectra have been undertaken using the self-consistent reaction field Onsager...
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