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NaY2Pb crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two NaY2Pb ribbons oriented in the (1, 0, 0) direction. Na is bonded in a linear geometry to two equivalent Y atoms. Both Na–Y bond lengths are 3.63 Å. Y is bonded in a linear geometry to one Na and one Pb atom. The Y–Pb bond length is 2.83 Å. Pb is bonded in a linear geometry to two equivalent Y atoms.
NaYPb2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two NaYPb2 ribbons oriented in the (1, 0, 0) direction. Na is bonded in a linear geometry to two equivalent Pb atoms. Both Na–Pb bond lengths are 3.08 Å. Y is bonded in a linear geometry to two equivalent Pb atoms. Both Y–Pb bond lengths are 3.02 Å. Pb is bonded in a linear geometry to one Na and one Y atom.