Figure 3: Crystal structures of 5M.
From: Molecular and electronic structure of terminal and alkali metal-capped uranium(V) nitride complexes

Molecular structures with displacement ellipsoids at 40%, and minor disorder, hydrogen atoms, counter ions and lattice solvent omitted, with selective labelling of: (a) 5Li, (b) 5K, (c) 5Rb and (d) 5Cs. The structure of 5Na has been reported previously25.