Thermochemistry of bis(tropolonato)copper(II).

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概要

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• The standard enthalpy of formation of crystalline bis(tropolonato)copper(II) has been determined at 298.15 K by solution calorimetry: Δ<I>H</I><SUB>f</SUB>°[Cu(trop)<SUB>2</SUB>] (c)=−102.47±0.42 kcal mol<SUP>−1</SUP>. Enthalpy changes at 298.15 K for the following hypothetical gaseous reactions have been subsequently derived:<BR>2& Cu(g)+2 trop^.(g)=[Cu(trop)_2](c) & & ΔH=-150.4±14.1 kcal mol^-1<BR>& Cu^2+(g)+2 trop^-(g)=[Cu(trop)_2](c) & & ΔH=-731.4±11.4 kcal mol^-1<BR>The corresponding homolytic (<I>E</I>) and heterolytic(<I>E</I>′) copper(II)-oxygen bond energy parameters were calculated as<BR>E_Cu–o=38±4 kcal mol^-1 and E'_Cu–o=183±3 kcal mol^-1<BR>respectively.

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著者

• Ribeiro da

  Chemistry Department, Faculty of Sciences, University of Oporto

関連論文

• Thermochemistry of bis(tropolonato)copper(II).

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