Correlation analysis in physicochemistry of systems containing neutral lanthanoid atoms. Intermetallic compounds

Correlation analysis of quantum mechanic properties of neutral atoms of lanthanoids of intermetallic compounds is performed. Dependences of parameters of the cubic lattice on the lanthanoid ordering number, the charge of spin and orbital numbers of Ln deg main states in their natural series are presented. The main states of neutral Ln atoms, values of correlation coefficients lattice parameters of LnLn compounds with cubic structure of the CsCl and LnTl3 type with cubic structure of the AuCu3 type are tabulated. It is shown that quantum mechanic characteristics of neutral lanthanoid atoms explain rather well the dependence of parameters of intermetallic compounds, namely, excluding position of functions of Eu and Yb elements without use of concepts on their divalent state