caa a22 4500 463193571 CHVBK 20180406164916.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s10973-006-7679-y doi (NATIONALLICENCE)springer-10.1007/s10973-006-7679-y Thermochemicalinvestigation of acid-base interactions in peptide solutions [Elektronische Daten] [G. Gorboletova, L. Kochergina] Heat effects of interaction of D,L-α-alanyl-D,L-α-alanine, glycil-γ-aminobutyric acid, glycil-L-asparagine and D,L-α-alanyl-D,L-asparagine with KOH, LiOH and HNO3 solutions were measured by the direct calorimetry method at 288.15, 298.15, 308.15, 318.15 K and at several values of the ionic strength created by adding KNO3 and LiNO3. The standard dissociation enthalpies of the investigated ligands were obtained by the extrapolation to zero ionic strength. The standard thermodynamic characteristics (ΔG 0 , ΔH 0 , ΔS 0 , ΔC p 0) of the processes of acid-base interaction in dipeptide solutions were calculated. Several peculiarities of acid-base interaction reactions in the solutions of biologically important ligands were found. The correlations between the thermodynamic characteristics of the protolytic equilibria in the dipeptide and aminoacids solutions and the structure of these compounds were determined. Springer-Verlag, 2006 aminoacid nationallicence calorimetry nationallicence dipeptide nationallicence dissociation nationallicence temperature nationallicence thermodynamic characteristics nationallicence Gorboletova G. Ivanovo State University of Chemistry and Technology, Engels Avenue 7, 153000, Ivanovo, Russia aut Kochergina L. Ivanovo State University of Chemistry and Technology, Engels Avenue 7, 153000, Ivanovo, Russia aut Journal of Thermal Analysis and Calorimetry Springer Netherlands 87/2(2007-01-01), 561-565 1388-6150 87:2<561 2007 87 10973 https://doi.org/10.1007/s10973-006-7679-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7679-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gorboletova G. Ivanovo State University of Chemistry and Technology, Engels Avenue 7, 153000, Ivanovo, Russia aut NATIONALLICENCE 700 1- Kochergina L. Ivanovo State University of Chemistry and Technology, Engels Avenue 7, 153000, Ivanovo, Russia aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer Netherlands 87/2(2007-01-01), 561-565 1388-6150 87:2<561 2007 87 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer