Abstract
Tetrakis(2-cyanoethyl)tin forms 1:1 complexes when it is allowed to react with either tin(IV) chloride or bromide in methylene chloride at room temperature, but not with tin(IV) fluoride, tin(IV) iodide, tin(IV) sulfate, and tin(IV) oxide. At elevated temperatures, these complexes udergo redistribution reactions by themselves, with added tetrakis(2-cyanoethyl)tin, or with added in (IV) halide (Cl or Br). All possible redistribution products were obtained in poor to moderate yields, depending on experimental conditions. Regardless of the stoichiometry of the reactants, tris(2-cyanoethyl)tin bromide is the major product when tin(IV) bromide is used. The infrared nitrile absorptions for the complexes and tetrakis(2-cyanoethyl)tin are reported and discussed.
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