BaPdSi3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Si(1), and eight equivalent Si(2) atoms. Pd(1) is bonded in a 5-coordinate geometry to four equivalent Ba(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Pd(1), and four equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Pd(1), and two equivalent Si(1) atoms.
BaPdSi3 crystallizes in the tetragonal I4mm space group. Ba(1) is bonded in a 16-coordinate geometry to four equivalent Pd(1), four equivalent Si(1), and eight equivalent Si(2) atoms. All Ba(1)-Pd(1) bond lengths are 3.47 Å. All Ba(1)-Si(1) bond lengths are 3.35 Å. There are four shorter (3.36 Å) and four longer (3.41 Å) Ba(1)-Si(2) bond lengths. Pd(1) is bonded in a 5-coordinate geometry to four equivalent Ba(1), one Si(1), and four equivalent Si(2) atoms. The Pd(1)-Si(1) bond length is 2.68 Å. All Pd(1)-Si(2) bond lengths are 2.47 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Pd(1), and four equivalent Si(2) atoms. All Si(1)-Si(2) bond lengths are 2.59 Å. In the second Si site, Si(2) is bonded in a 8-coordinate geometry to four equivalent Ba(1), two equivalent Pd(1), and two equivalent Si(1) atoms.