Étude thermochimique des sels de nickel et de cuivre de quelques amino-acides |
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Authors: | Maurice A Bernard Nicole Bois Michelle Daireaux |
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Institution: | Laboratoire de Chimie Minérale B, Groupe de Cristallographie et Chimie du Solide, E.R.A. 305, U.E.R. de Sciences, Université de Caen, 14032 Caen France |
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Abstract: | Standard enthalpies of formation of:nickel and copper salts of several amino acids (α-alanine, valine, norvaline, isoleucine, norleucine);mixed complexes of copper:. Cu(α-alanine) (valine), Cu(α-alanine) (isoleucine), and Cu(valine) (isoleucine) are determined by calorimetry.The variations of enthalpy linked to the transformation of amminated and hydrated salts of the valine and of the isoleucine into the corresponding anhydrous compounds were determined by two different procedures: indirect calorimetry and differential calorimetric analysis. |
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