Studies on Standard Formation Enthalpies of Rare Earth Compounds by Using Structural Parameters
来源期刊：JOURNAL OF RARE EARTHS2000年第3期
论文作者：YANG Feng FENG Lin
Key words：rare earths; structural parameter; standard formation enthalpies;
Abstract: The atomic structural parameter Pi＝(Zi*/ni*) (1+ni*/ni) (1+mi/Z) and the molecular structural parameter P＝Σni=1Pi are defined. The standard formation enthalpies (ΔfHφm) of 74 species of rare earth compounds were studied with P, and the correlation coefficient is R＞0.94. The structural factors and the properties of rare earth compounds are influenced by the Zi*, ni*, ni, mi, Z. This study has special referential value to predict the properties of rare earth compounds.
YANG Feng1，FENG Lin2
(1.Wuhan Institute of Science and Technology, Wuhan 430073, China;
2.School of Chemistry & Chemical Engineering, Southwest Normal University, Chongqing 400715, China)
Abstract:The atomic structural parameter Pi＝(Zi*/ni*) (1+ni*/ni) (1+mi/Z) and the molecular structural parameter P＝Σni=1Pi are defined. The standard formation enthalpies (ΔfHφm) of 74 species of rare earth compounds were studied with P, and the correlation coefficient is R＞0.94. The structural factors and the properties of rare earth compounds are influenced by the Zi*, ni*, ni, mi, Z. This study has special referential value to predict the properties of rare earth compounds.
Key words:rare earths; structural parameter; standard formation enthalpies;
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