Abstract
This paper reports on our mass spectrometric study of sublimation of glycine and DL-alanyl-glycine (Ala-gly). The sublimation enthalpy of Ala-gly has been determined by generalization of the data obtained and the results of AM1 quantum-chemical calculations. A relationship has been found between the sublimation enthalpy (ΔH subl), heat capacity (C P), and the sum of bond lengths (Σn i l i ) in 17 α-amino acid and 9 dipeptide molecules. Correlations are suggested for evaluating ΔH subl of amino acids and peptides.
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Translated from Zhurnal Strukturnoi Khimii, Vol. 48, No. 4, pp. 698–704, July–August, 2007.
Original Russian Text Copyright © 2007 by V. G. Badelin, E. Yu. Tyunina, G. V. Girichev, N. I. Giricheva, and O. V. Pelipets
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Badelin, V.G., Tyunina, E.Y., Girichev, G.V. et al. Relationship between the molecular structure of amino acids and dipeptides and thermal sublimation effects. J Struct Chem 48, 647–653 (2007). https://doi.org/10.1007/s10947-007-0098-5
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DOI: https://doi.org/10.1007/s10947-007-0098-5