Capped-Archimedean-antiprism

The intensely yellow compounds 10 and 11 crystallize in the tetragonal space group PA/nnc. The oval Ei0Lii6 cluster skeleton (E = P, As) is topologically best described as a twofold capped Archimedean antiprism formed by the 10 E atoms, of which each of the 16 triangular faces are occupied by a lithium center (Fig. 12) (21). 

Rh,P(CO)2,] - p Capped Archimedean antiprism, the fragment RhgP has square antiprism structure 36... 

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