Abstract
The phase Pd 8Sb 3 has the space group R3c and the hexagonal lattice constants a = 7.6152(7) and c = 43.032(7) A ̊ , with a cell content of 12 formula units in the hexagonal cell. The structure is a filling and stacking variant of the Pd 5Sb 2 structure. By feeding T atoms into the cell of Pd 5Sb 2 the valence electron correlation is conserved together with the energetic advantage of factorial commensurability between the valence electron and core electron correlations. The phases Pd 20Zn 7Te 20, Pd 73Ga 6Te 21, Pd 73Ge 7Te 20, Pd 73Sn 10Te 17, Pd 72P 6Te 22, Pd 73As 6Te 21 and Pd 73Bi 17Te 10 have structures which are compatible with such an assumption regarding the spatial correlation of the valence electrons. The binding in the other analyzed crystalline phases of the Pd-Sb mixture discussed.
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