Materials Data on K2NaAlP2 by Materials Project
K2NaAlP2 crystallizes in the orthorhombic Ibam space group. The structure is three-dimensional. K1+ is bonded in a 4-coordinate geometry to four equivalent P3- atoms. There are a spread of K–P bond distances ranging from 3.27–3.43 Å. Na1+ is bonded in a 4-coordinate geometry to four equivalent P3- atoms. All Na–P bond lengths are 2.89 Å. Al3+ is bonded to four equivalent P3- atoms to form edge-sharing AlP4 tetrahedra. All Al–P bond lengths are 2.45 Å. P3- is bonded in a 8-coordinate geometry to four equivalent K1+, two equivalent Na1+, and two equivalent Al3+ atoms.
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