6533b856fe1ef96bd12b1cf4

RESEARCH PRODUCT

Interaction of methyltin(IV) compounds with carboxylate ligands. Part 2: Formation thermodynamic parameters, predictive relationships and sequestering ability.

Alberto PettignanoSilvio SammartanoAntonio GianguzzaOttavia GiuffrèConcetta De Stefano

subject

Aqueous solutionLigandempirical relationshipInorganic chemistrymethyltin(IV) complexeGeneral ChemistryCalorimetryMedicinal chemistryInorganic Chemistrychemistry.chemical_compoundspeciation in aqueous solutionMalonatechemistrythermodynamic parameterSettore CHIM/01 - Chimica AnaliticaCarboxylatethermodynamic parametersempirical relationshipsmethyltin(IV) complexes; thermodynamic parameters; calorimetry; empirical relationships; speciation in aqueous solutionmethyltin(IV) complexescalorimetry

description

Thermodynamic data of mono-, di- and tri-methyltin(IV)-carboxylate complexes (acetate, malonate, succinate, oxydiacetate, diethylenetrioxydiacetate, malate, citrate, 1,2,3-tricarballylate, 1,2,3,4-butanetetracarboxylate, 1,2,3,4,5,6-benzenehexacarboxylate) in aqueous solution are reported at t = 25 °C and I = 0 mol l−1. Thermodynamic parameters obtained were analysed to formulate empirical predictive relationships as a function of different parameters, such as the number of carboxylate groups of the ligand and the charge of the alkyltin(IV) cation. Sequestration diagrams of citrate and 1,2,3-tricarballylate towards alkyltin(IV) cations at different pH values are also reported and discussed. Copyright © 2007 John Wiley & Sons, Ltd.

10.1002/aoc.1346http://hdl.handle.net/11570/1712560