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Mg2PdCd crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Mg2PdCd ribbons oriented in the (1, 0, 0) direction. Mg is bonded in a linear geometry to one Pd and one Cd atom. The Mg–Pd bond length is 2.49 Å. The Mg–Cd bond length is 3.10 Å. Pd is bonded in a linear geometry to two equivalent Mg atoms. Cd is bonded in a linear geometry to two equivalent Mg atoms.
MgPd2Cd is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mg is bonded in a body-centered cubic geometry to eight equivalent Pd atoms. All Mg–Pd bond lengths are 2.81 Å. Pd is bonded in a body-centered cubic geometry to four equivalent Mg and four equivalent Cd atoms. All Pd–Cd bond lengths are 2.81 Å. Cd is bonded in a body-centered cubic geometry to eight equivalent Pd atoms.
MgPd2Cd crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two MgPd2Cd ribbons oriented in the (1, 0, 0) direction. Mg is bonded in a linear geometry to two equivalent Pd atoms. Both Mg–Pd bond lengths are 2.46 Å. Pd is bonded in a linear geometry to one Mg and one Cd atom. The Pd–Cd bond length is 2.65 Å. Cd is bonded in a linear geometry to two equivalent Pd atoms.