Key points are not available for this paper at this time.
On a higher plane: The combination of theoretical and experimental methods has been used to predict, produce, and detect systems with the highest coordination numbers so far known in planar clusters. With these planar MB10− wheels (M=Nb, Ta; see picture), the world record for the highest coordination number is now set at ten.
Heine et al. (Fri,) studied this question.
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