Pentadecahedral

The stabilizing influence of the isoamyl chain on a Pd cavity, due to the correspondence between the shape and size of the chain and the configuration of the pentadecahedral water shell, is geometrically manifested in the presence of a large number of C…O distances of order 3.3-4.0 Å (Table III).[…]The pentadecahedral and decahedral cavities have the shapes of prolate spheroids with maximum diameters of 6.1-7.0 Å (Ref. 4) and minimum diameters of 3.7-4.3 Å (calculated by the present authors).

[…]H, and E are decahedral (4258), dodecahedral (512), tetradecahedral (51262), pentadecahedral (51263),[…]

HREM images calculated for a pentadecahedral structure as the model shown in the left portion of the figure.

Measurement of ¹¹B NMR spectra in particular have indicated seven distinct boron vertexes, although the resulting cage degradation by removal of two BH vertexes was confirmed only following X-ray crystallographic analysis, which revealed the pentadecahedral isonido-7,8,9-ReC₂B₇ architecture.

[…]the La atom of which displays a pentadecahedral (PD) geometry (Figure 17);

[…]T, tetradecahedral (51262), and P, pentadecahedral (51263) water polyhedra.