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Standard Enthalpies of Formation of Solid Complexes of Lanthanide Nitrates with Alanine

Standard Enthalpies of Formation of Solid Complexes of Lanthanide Nitrates with Alanine
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摘要 The combustion energies of fourteen solid complexes of lanthanide nitrate with alanine were determined. The standard enthalpies of combustion, Δ c,coor(s) H °, and standard enthalpies of formation, Δ f,coor(s) H °, were calculated for these complexes. The relationship of Δ c,coor(s) H ° and Δ f,coor(s) H ° with the atomic numbers of the elements in the lanthanide series were examined. The results show that a certain amount of covalence is present in the chemical bond between the lanthanide cations and alanine. The combustion energies of fourteen solid complexes of lanthanide nitrate with alanine were determined. The standard enthalpies of combustion, Δ c,coor(s) H °, and standard enthalpies of formation, Δ f,coor(s) H °, were calculated for these complexes. The relationship of Δ c,coor(s) H ° and Δ f,coor(s) H ° with the atomic numbers of the elements in the lanthanide series were examined. The results show that a certain amount of covalence is present in the chemical bond between the lanthanide cations and alanine.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2002年第3期167-171,共5页 稀土学报(英文版)
基金 ProjectsupportedbytheNationalNaturalScienceFoundationofChina(2 98710 2 3 )
关键词 rare earths lanthanide complex enthalpy of formation rare earths lanthanide complex enthalpy of formation
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