AgAlO2 crystallizes in the orthorhombic Pna2_1 space group. Ag(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AgO4 tetrahedra that share corners with four equivalent Ag(1)O4 tetrahedra and corners with eight equivalent Al(1)O4 tetrahedra. Al(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AlO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra and corners with eight equivalent Ag(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Al(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Al(1) atoms.
AgAlO2 crystallizes in the orthorhombic Pna2_1 space group. Ag(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AgO4 tetrahedra that share corners with four equivalent Ag(1)O4 tetrahedra and corners with eight equivalent Al(1)O4 tetrahedra. There is one shorter (2.41 Å) and one longer (2.43 Å) Ag(1)-O(1) bond length. There is one shorter (2.38 Å) and one longer (2.54 Å) Ag(1)-O(2) bond length. Al(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AlO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra and corners with eight equivalent Ag(1)O4 tetrahedra. Both Al(1)-O(1) bond lengths are 1.78 Å. There is one shorter (1.77 Å) and one longer (1.78 Å) Al(1)-O(2) bond length. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Al(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Ag(1) and two equivalent Al(1) atoms.