Calorimetric study of the reaction between lanthanoid trifluoromethanesulphonates and hexamethylphosphoramide (HMPA) in ethanolic solution

Compounds between trifluoromethanesulphonates and HMPA were prepared by rea ction of the salt and ligand dissolved in ethanol and acetone, respectively , on water bath. The compounds are characterized by CHN, IR and TG. From solution calorimetry and appropriate thermodynamic cycles, the standar d molar enthalpies of acid-basic reaction adducts have been determined. Cal orimetric measurements were performed using a Solution Calorimeter System, at 298.15 K, in ethanolic solution, (C) 1999 Elsevier Science B.V. All righ ts reserved.