Synthèse et étude comparée des propriétés complexantes de dérivés de l'acide Methylène Diphosphonique

Abstract : Two original acid derivatives of methylene diphosphonic acid (MDP) with two inequivalent phosphorus atoms have been synthesised: [(thiophosphonato)-methyl]phosphonic acid, (MDPS), and [(isopropyiamido phosphonato)-methyl] phosphonic acid, (MDPN). A poten- tiometric study allowed to define the stoechiometry of the complex formed between MDP and magnesium (II) in alcaline medium and a 31P NMR study proved the dissymetric structure of this MDPMg2+ complex. The displacement of the coordination equilibrium between Black Eriochrome T and magnesium (II) permitted to compare the coordination strength of MDP, MDPS and MDPN with the cation Mg2+.
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https://hal.univ-lorraine.fr/hal-01942031
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Submitted on : Sunday, December 2, 2018 - 8:52:54 PM
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M. Etienne, P. Rubini, J. Bessiere, Alain Walcarius, C. Grison, et al.. Synthèse et étude comparée des propriétés complexantes de dérivés de l'acide Methylène Diphosphonique. Phosphorus, Sulfur, and Silicon and the Related Elements, Taylor & Francis, 2000, 161 (1), pp.75-96. ⟨10.1080/10426500008042097⟩. ⟨hal-01942031⟩

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