The New Polytype Structures Pd 8 T 3 ( T = As, Sb)

The polytypic structure of Pd 8 T 3 ( T = As, Sb) compounds was revealed using the graph method. The topology of the layers and the regular sequence of their alternation are analyzed. The ordering of antimony and arsenic atoms by the positions at the nodes of layer-networks and the positional disorder in the sequence of alternating layers, which lead to the formation of different structural polytypes, are considered.