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RbKNa2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two RbKNa2 ribbons oriented in the (0, 1, 0) direction. Rb is bonded in a linear geometry to two equivalent Na atoms. Both Rb–Na bond lengths are 3.92 Å. K is bonded in a linear geometry to two equivalent Na atoms. Both K–Na bond lengths are 3.88 Å. Na is bonded in a linear geometry to one Rb and one K atom.
RbK2Na crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two RbK2Na ribbons oriented in the (0, 1, 0) direction. Rb is bonded in a linear geometry to two equivalent K atoms. Both Rb–K bond lengths are 4.70 Å. K is bonded in a linear geometry to one Rb and one Na atom. The K–Na bond length is 3.77 Å. Na is bonded in a linear geometry to two equivalent K atoms.
Rb2KNa crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Rb2KNa ribbons oriented in the (0, 1, 0) direction. Rb is bonded in a linear geometry to one K and one Na atom. The Rb–K bond length is 4.66 Å. The Rb–Na bond length is 3.94 Å. K is bonded in a linear geometry to two equivalent Rb atoms. Na is bonded in a linear geometry to two equivalent Rb atoms.