BaPtSn3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 17-coordinate geometry to five equivalent Pt(1), four equivalent Sn(2), and eight equivalent Sn(1) atoms. Pt(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1), one Sn(2), and four equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to four equivalent Ba(1), two equivalent Pt(1), and two equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Pt(1), and four equivalent Sn(1) atoms.
BaPtSn3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 17-coordinate geometry to five equivalent Pt(1), four equivalent Sn(2), and eight equivalent Sn(1) atoms. There are four shorter (3.89 Å) and one longer (3.90 Å) Ba(1)-Pt(1) bond length. All Ba(1)-Sn(2) bond lengths are 3.61 Å. There are four shorter (3.72 Å) and four longer (3.75 Å) Ba(1)-Sn(1) bond lengths. Pt(1) is bonded in a 5-coordinate geometry to five equivalent Ba(1), one Sn(2), and four equivalent Sn(1) atoms. The Pt(1)-Sn(2) bond length is 2.66 Å. All Pt(1)-Sn(1) bond lengths are 2.70 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 2-coordinate geometry to four equivalent Ba(1), two equivalent Pt(1), and two equivalent Sn(2) atoms. Both Sn(1)-Sn(2) bond lengths are 3.08 Å. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Pt(1), and four equivalent Sn(1) atoms.