Ba4GaSn3 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 7-coordinate geometry to one Ga(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. In the second Ba site, Ba(2) is bonded in a 7-coordinate geometry to two equivalent Ga(1), one Sn(1), and four equivalent Sn(3) atoms. In the third Ba site, Ba(3) is bonded in a 7-coordinate geometry to four equivalent Ga(1), one Sn(2), and two equivalent Sn(3) atoms. In the fourth Ba site, Ba(4) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(2), and four equivalent Sn(1) atoms. Ga(1) is bonded in a 9-coordinate geometry to one Ba(1), two equivalent Ba(2), four equivalent Ba(3), and two equivalent Sn(3) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one Ba(2), two equivalent Ba(1), four equivalent Ba(4), and two equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ba(3), two equivalent Ba(4), four equivalent Ba(1), and two equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to one Ba(4), two equivalent Ba(3), four equivalent Ba(2), and two equivalent Ga(1) atoms.
Ba4GaSn3 crystallizes in the orthorhombic Pmm2 space group. There are four inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 7-coordinate geometry to one Ga(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. The Ba(1)-Ga(1) bond length is 3.73 Å. Both Ba(1)-Sn(1) bond lengths are 3.76 Å. All Ba(1)-Sn(2) bond lengths are 3.64 Å. In the second Ba site, Ba(2) is bonded in a 7-coordinate geometry to two equivalent Ga(1), one Sn(1), and four equivalent Sn(3) atoms. Both Ba(2)-Ga(1) bond lengths are 3.73 Å. The Ba(2)-Sn(1) bond length is 3.71 Å. All Ba(2)-Sn(3) bond lengths are 3.66 Å. In the third Ba site, Ba(3) is bonded in a 7-coordinate geometry to four equivalent Ga(1), one Sn(2), and two equivalent Sn(3) atoms. All Ba(3)-Ga(1) bond lengths are 3.65 Å. The Ba(3)-Sn(2) bond length is 3.72 Å. Both Ba(3)-Sn(3) bond lengths are 3.70 Å. In the fourth Ba site, Ba(4) is bonded in a 7-coordinate geometry to one Sn(3), two equivalent Sn(2), and four equivalent Sn(1) atoms. The Ba(4)-Sn(3) bond length is 3.76 Å. Both Ba(4)-Sn(2) bond lengths are 3.76 Å. All Ba(4)-Sn(1) bond lengths are 3.64 Å. Ga(1) is bonded in a 9-coordinate geometry to one Ba(1), two equivalent Ba(2), four equivalent Ba(3), and two equivalent Sn(3) atoms. Both Ga(1)-Sn(3) bond lengths are 2.93 Å. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one Ba(2), two equivalent Ba(1), four equivalent Ba(4), and two equivalent Sn(2) atoms. Both Sn(1)-Sn(2) bond lengths are 2.99 Å. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to one Ba(3), two equivalent Ba(4), four equivalent Ba(1), and two equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to one Ba(4), two equivalent Ba(3), four equivalent Ba(2), and two equivalent Ga(1) atoms.