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An attempt is made to obtain indications of the structure of the electron gas from a discussion of the crystal structures, and on the other hand, to understand better structural data from considerations of the correlations in the electron gas. The assumption of a lattice-like positional correlation of the electrons leads to energetically acceptable results, if participation of the outer kernal electrons of the  T  atom on the positional correlation is assumed. By means of a discussion of the 3-dimensional electron distribution, it is possible to explain why TB 2  compounds, with  B -elements of the fifth and sixth columns prefer the types C2, C18, and C6, while on the other hand the  TB  2  compounds with  B  elements of the third and fourth columns prefer the C1 und C16 type. The positional correlations mentioned are in agreement with the tables of the substances of each type. They lead to a better understanding of the energetic favorability of the structures. Since the possible positional correlations of the electrons are less numerous than the observed positional correlations of the atoms, the discussion given here is of interest and represents an addition to the structural considerations which are in use.

Über das Auftreten der Kristallstrukturen C 1, C 16, C 2, C 18 und C 6 bei Phasen der Art TB 2 1