The Ce₂Li_0.39Ni_1.61Si₂ structure as a new derivative of the AlB₂ family

A quaternary inter­metallic dicerium lithium/nickel disilicide, Ce₂Li_0.39Ni_1.61Si₂, is compared with parent binary AlB₂ and RE-T-Si (RE = rare earth and T = transition metal) ternary phase compounds. The calculated electronic structure indicates metallic bonding is dominant within Ce₂Li_0.39Ni_1.61Si₂.