Figure 2: The ground-state structures of anionic clusters FeL4 (L = BO2, CN, NO2, NO3, OH, CH3, NH2, BH4 and Li2H3) along with their spin multiplicities and symmetries.
From: Iron-based magnetic superhalogens with pseudohalogens as ligands: An unbiased structure search

The red, springgreen, royalblue, blue, olive, pink and maroon spheres represent the O, B, Fe, N, C, H and Li atoms, respectively.