Figure 1

Depiction of crystal structure of YxAlyB14, first reported by Korsukova et al.42, which is orthorhombic structure belonging to Imma space group. The boron atoms B1, B3, B4 and B5 form B12 icosahedra structures, which are interconnected via external B-B bonds or via B2 atom. Y and Al atoms partially occupy interstitial positions in the rigid three-dimensional B network.