Amino-substitutedgem-diphosphonic acids: Dissociation mechanism and the structure of species in aqueous solutions

AG Matveeva, MP Pasechnik, PV Petrovskii…

Index: Matveeva; Pasechnik; Petrovskii; Matveev Russian Chemical Bulletin, 2000 , vol. 49, # 6 p. 1045 - 1058

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Citation Number: 9

Abstract

Abstract The mechanism of dissociation of amino-substituted gem-diphosphonic acids R 2 N (CH 2) n CR'(PO 3 H 2) 2 with different lengths of the alkylidene chain and different substituents at the N atom was studied by vibrational (IR, Raman) and NMR (1 H, 14 N, 31 P) spectroscopy using data of conformational analysis (molecular mechanical) data. The important role of intramolecular H-bonds and cyclic solvates for the stabilization of various ...