CsGa7 crystallizes in the trigonal R-3m space group. Cs(1) is bonded in a 15-coordinate geometry to three equivalent Ga(2), three equivalent Ga(3), and nine equivalent Ga(1) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(2) is bonded in a 7-coordinate geometry to three equivalent Cs(1), one Ga(2), and three equivalent Ga(1) atoms. In the second Ga site, Ga(3) is bonded in a 8-coordinate geometry to one Cs(1), three equivalent Ga(1), and four equivalent Ga(3) atoms. In the third Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Cs(1), one Ga(2), two equivalent Ga(1), and three equivalent Ga(3) atoms.
CsGa7 crystallizes in the trigonal R-3m space group. Cs(1) is bonded in a 15-coordinate geometry to three equivalent Ga(2), three equivalent Ga(3), and nine equivalent Ga(1) atoms. All Cs(1)-Ga(2) bond lengths are 3.87 Å. All Cs(1)-Ga(3) bond lengths are 3.83 Å. There are three shorter (3.78 Å) and six longer (3.82 Å) Cs(1)-Ga(1) bond lengths. There are three inequivalent Ga sites. In the first Ga site, Ga(2) is bonded in a 7-coordinate geometry to three equivalent Cs(1), one Ga(2), and three equivalent Ga(1) atoms. The Ga(2)-Ga(2) bond length is 2.61 Å. All Ga(2)-Ga(1) bond lengths are 2.60 Å. In the second Ga site, Ga(3) is bonded in a 8-coordinate geometry to one Cs(1), three equivalent Ga(1), and four equivalent Ga(3) atoms. There are two shorter (2.63 Å) and one longer (2.81 Å) Ga(3)-Ga(1) bond length. There are two shorter (2.54 Å) and two longer (2.65 Å) Ga(3)-Ga(3) bond lengths. In the third Ga site, Ga(1) is bonded in a 9-coordinate geometry to three equivalent Cs(1), one Ga(2), two equivalent Ga(1), and three equivalent Ga(3) atoms. Both Ga(1)-Ga(1) bond lengths are 2.78 Å.