Materials Data on LiCa3 by Materials Project
Ca3Li is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li is bonded in a distorted square co-planar geometry to twelve Ca atoms. There are four shorter (3.68 Å) and eight longer (3.81 Å) Li–Ca bond lengths. There are two inequivalent Ca sites. In the first Ca site, Ca is bonded to four equivalent Li and eight Ca atoms to form a mixture of distorted edge, face, and corner-sharing CaLi4Ca8 cuboctahedra. There are four shorter (3.68 Å) and four longer (3.81 Å) Ca–Ca bond lengths. In the second Ca site, Ca is bonded to four equivalent Li and eight equivalent Ca atoms to form a mixture of edge, face, and corner-sharing CaLi4Ca8 cuboctahedra.