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EuAg2 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Eu is bonded in a 12-coordinate geometry to twelve equivalent Ag atoms. There are a spread of Eu–Ag bond distances ranging from 3.32–3.49 Å. Ag is bonded in a 10-coordinate geometry to six equivalent Eu and four equivalent Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.81–2.98 Å.
EuAg5 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Eu is bonded in a distorted hexagonal planar geometry to eighteen Ag atoms. There are six shorter (3.31 Å) and twelve longer (3.70 Å) Eu–Ag bond lengths. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded in a 12-coordinate geometry to three equivalent Eu and nine Ag atoms. There are six shorter (2.87 Å) and three longer (3.31 Å) Ag–Ag bond lengths. In the second Ag site, Ag is bonded to four equivalent Eu and eight Ag atoms to form a mixture of corner, edge, and face-sharing AgEu4Ag8 cuboctahedra. All Ag–Ag bond lengths are 2.86 Å.
Eu3Ag2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a 6-coordinate geometry to six equivalent Ag atoms. There are two shorter (3.38 Å) and four longer (3.39 Å) Eu–Ag bond lengths. In the second Eu site, Eu is bonded in a square co-planar geometry to four equivalent Ag atoms. All Eu–Ag bond lengths are 3.39 Å. Ag is bonded in a 9-coordinate geometry to eight Eu and one Ag atom. The Ag–Ag bond length is 2.97 Å.
AgEu crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Eu is bonded in a 7-coordinate geometry to seven equivalent Ag atoms. There are a spread of Eu–Ag bond distances ranging from 3.26–3.35 Å. Ag is bonded in a 9-coordinate geometry to seven equivalent Eu and two equivalent Ag atoms. Both Ag–Ag bond lengths are 2.93 Å.
Eu3Ag is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Eu is bonded to eight equivalent Eu and four equivalent Ag atoms to form distorted EuEu8Ag4 cuboctahedra that share corners with twelve equivalent EuEu8Ag4 cuboctahedra, edges with eight equivalent AgEu12 cuboctahedra, edges with sixteen equivalent EuEu8Ag4 cuboctahedra, faces with four equivalent AgEu12 cuboctahedra, and faces with fourteen equivalent EuEu8Ag4 cuboctahedra. All Eu–Eu bond lengths are 3.61 Å. All Eu–Ag bond lengths are 3.61 Å. Ag is bonded to twelve equivalent Eu atoms to form AgEu12 cuboctahedra that share corners with twelve equivalent AgEu12 cuboctahedra, edges with twenty-four equivalent EuEu8Ag4 cuboctahedra, faces with six equivalent AgEu12 cuboctahedra, and faces with twelve equivalent EuEu8Ag4 cuboctahedra.
EuAg3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu is bonded in a distorted body-centered cubic geometry to fourteen Ag atoms. There are a spread of Eu–Ag bond distances ranging from 3.12–3.73 Å. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded to four equivalent Eu and four equivalent Ag atoms to form a mixture of distorted edge, face, and corner-sharing AgEu4Ag4 tetrahedra. All Ag–Ag bond lengths are 3.12 Å. In the second Ag site, Ag is bonded in a 12-coordinate geometry to six equivalent Eu and eight equivalent Ag atoms.
EuAg3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Eu is bonded to twelve equivalent Ag atoms to form a mixture of distorted face and corner-sharing EuAg12 cuboctahedra. There are six shorter (3.28 Å) and six longer (3.39 Å) Eu–Ag bond lengths. Ag is bonded in a 10-coordinate geometry to four equivalent Eu and six equivalent Ag atoms. There are two shorter (2.92 Å) and four longer (2.94 Å) Ag–Ag bond lengths.