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Au2CdZn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Au2CdZn ribbons oriented in the (1, 0, 0) direction. Au is bonded in a linear geometry to one Cd and one Zn atom. The Au–Cd bond length is 2.62 Å. The Au–Zn bond length is 2.54 Å. Cd is bonded in a linear geometry to two equivalent Au atoms. Zn is bonded in a linear geometry to two equivalent Au atoms.
Au2CdZn is Heusler-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Au is bonded in a body-centered cubic geometry to four equivalent Cd and four equivalent Zn atoms. All Au–Cd bond lengths are 2.98 Å. All Au–Zn bond lengths are 2.75 Å. Cd is bonded in a body-centered cubic geometry to eight equivalent Au atoms. Zn is bonded in a body-centered cubic geometry to eight equivalent Au atoms.