The Chelating Behaviour of 3??(4??X??Phenyl)??2??sulfanylpropenoic Acids with the PbII Ion–Relevance of the Lone Electron Pair in the Supramolecular Structures of the …

…, M Castaño, MD Couce, A Sánchez…

Index: Casas, Jose S.; Castano, M. Victoria; Couce, Maria D.; Sanchez, Agustin; Sordo, Jose; Torres, M. Dolores; Vazquez Lopez, Ezequiel M. European Journal of Inorganic Chemistry, 2013 , # 29 p. 5110 - 5120

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Abstract

Abstract The interaction of 3-(4-X-phenyl)-2-sulfanylpropenoic acids [H 2 (X-pspa); X=–F,– Cl,–Br,–I,–OCH 3,–OCF 3,–OH] with lead (II) acetate in an alcoholic medium was explored in the search for new chelating agents for the Pb 2+ ion. The direct reactions afforded [Pb (X- pspa)] complexes in yields of 67 (X=–Br) to 95%(X=–OCH 3). When the Pb II/H 2 (X-pspa) reaction was performed in the presence of diisopropylamine (Q), the derivatives [HQ] 2 [Pb ...