Thermochemistry of Bis(tropolonato)copper(II)
1977; Oxford University Press; Volume: 50; Issue: 3 Linguagem: Inglês
10.1246/bcsj.50.734
ISSN1348-0634
AutoresManuel A.V. Ribeiro da Silva, R. J. Irving,
Tópico(s)Thermal and Kinetic Analysis
ResumoThe standard enthalpy of formation of crystalline bis(tropolonato)copper(II) has been determined at 298.15 K by solution calorimetry: ΔHf°[Cu(trop)2] (c)=−102.47±0.42 kcal mol−1. Enthalpy changes at 298.15 K for the following hypothetical gaseous reactions have been subsequently derived:2& Cu(g)+2 trop^.(g)=[Cu(trop)_2](c) & & ΔH=-150.4±14.1 kcal mol^-1& Cu^2+(g)+2 trop^-(g)=[Cu(trop)_2](c) & & ΔH=-731.4±11.4 kcal mol^-1The corresponding homolytic (E) and heterolytic(E′) copper(II)-oxygen bond energy parameters were calculated asE_Cu–o=38±4 kcal mol^-1 and E’_Cu–o=183±3 kcal mol^-1respectively.
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