Ti2GaC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ti is bonded in a 3-coordinate geometry to three equivalent Ga and three equivalent C atoms. All Ti–Ga bond lengths are 2.84 Å. All Ti–C bond lengths are 2.11 Å. Ga is bonded in a 12-coordinate geometry to six equivalent Ti atoms. C is bonded to six equivalent Ti atoms to form edge-sharing CTi6 octahedra.