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LaAg is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. La is bonded in a body-centered cubic geometry to eight equivalent Ag atoms. All La–Ag bond lengths are 3.33 Å. Ag is bonded in a body-centered cubic geometry to eight equivalent La atoms.
AgLa(PO3)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.45–2.59 Å. Ag1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ag–O bond distances ranging from 2.51–2.84 Å. There are four inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.61 Å. In the second P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There is two shorter (1.51 Å) and two longer (1.61 Å) P–O bond length. In the third P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.62 Å. In the fourth P5+ site, P5+ is bonded to four O2- atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.50–1.62 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two P5+ atoms. In the tenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one La3+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to one La3+, one Ag1+, and one P5+ atom. In the twelfth O2- site, O2- is bonded in a bent 120 degrees geometry to two P5+ atoms.