Ba2AgGa7 crystallizes in the tetragonal P-4m2 space group. Ba(1) is bonded in a 16-coordinate geometry to two equivalent Ag(1), two equivalent Ga(3), two equivalent Ga(4), two equivalent Ga(5), four equivalent Ga(1), and four equivalent Ga(2) atoms. Ag(1) is bonded to four equivalent Ba(1), four equivalent Ga(1), and four equivalent Ga(4) atoms to form distorted AgBa4Ga8 cuboctahedra that share corners with four equivalent Ag(1)Ba4Ga8 cuboctahedra, faces with four equivalent Ag(1)Ba4Ga8 cuboctahedra, and faces with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), two equivalent Ag(1), one Ga(2), and two equivalent Ga(4) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Ga(1), two equivalent Ga(3), and two equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to four equivalent Ba(1) and four equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded to four equivalent Ba(1), four equivalent Ag(1), and four equivalent Ga(1) atoms to form GaBa4Ga4Ag4 cuboctahedra that share corners with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra, faces with four equivalent Ag(1)Ba4Ga8 cuboctahedra, and faces with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra. In the fifth Ga site, Ga(5) is bonded in a 8-coordinate geometry to four equivalent Ba(1) and four equivalent Ga(2) atoms.
Ba2AgGa7 crystallizes in the tetragonal P-4m2 space group. Ba(1) is bonded in a 16-coordinate geometry to two equivalent Ag(1), two equivalent Ga(3), two equivalent Ga(4), two equivalent Ga(5), four equivalent Ga(1), and four equivalent Ga(2) atoms. Both Ba(1)-Ag(1) bond lengths are 3.58 Å. Both Ba(1)-Ga(3) bond lengths are 3.52 Å. Both Ba(1)-Ga(4) bond lengths are 3.58 Å. Both Ba(1)-Ga(5) bond lengths are 3.52 Å. All Ba(1)-Ga(1) bond lengths are 3.50 Å. All Ba(1)-Ga(2) bond lengths are 3.47 Å. Ag(1) is bonded to four equivalent Ba(1), four equivalent Ga(1), and four equivalent Ga(4) atoms to form distorted AgBa4Ga8 cuboctahedra that share corners with four equivalent Ag(1)Ba4Ga8 cuboctahedra, faces with four equivalent Ag(1)Ba4Ga8 cuboctahedra, and faces with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra. All Ag(1)-Ga(1) bond lengths are 2.68 Å. All Ag(1)-Ga(4) bond lengths are 3.23 Å. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), two equivalent Ag(1), one Ga(2), and two equivalent Ga(4) atoms. The Ga(1)-Ga(2) bond length is 2.64 Å. Both Ga(1)-Ga(4) bond lengths are 2.68 Å. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Ga(1), two equivalent Ga(3), and two equivalent Ga(5) atoms. Both Ga(2)-Ga(3) bond lengths are 2.68 Å. Both Ga(2)-Ga(5) bond lengths are 2.68 Å. In the third Ga site, Ga(3) is bonded in a 8-coordinate geometry to four equivalent Ba(1) and four equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded to four equivalent Ba(1), four equivalent Ag(1), and four equivalent Ga(1) atoms to form GaBa4Ga4Ag4 cuboctahedra that share corners with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra, faces with four equivalent Ag(1)Ba4Ga8 cuboctahedra, and faces with four equivalent Ga(4)Ba4Ga4Ag4 cuboctahedra. In the fifth Ga site, Ga(5) is bonded in a 8-coordinate geometry to four equivalent Ba(1) and four equivalent Ga(2) atoms.