NaPd3Si2 crystallizes in the orthorhombic Imm2 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), two equivalent Si(1), and four equivalent Si(2) atoms. In the second Na site, Na(2) is bonded in a 10-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), two equivalent Si(1), and two equivalent Si(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), two equivalent Si(1), and two equivalent Si(2) atoms. In the second Pd site, Pd(2) is bonded in a 7-coordinate geometry to one Na(1), two equivalent Na(2), two equivalent Si(1), and two 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 one Na(1), one Na(2), two equivalent Pd(2), four equivalent Pd(1), and one Si(2) atom. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Na(2), two equivalent Na(1), two equivalent Pd(2), four equivalent Pd(1), and one Si(1) atom.
NaPd3Si2 crystallizes in the orthorhombic Imm2 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 10-coordinate geometry to two equivalent Pd(2), four equivalent Pd(1), two equivalent Si(1), and four equivalent Si(2) atoms. Both Na(1)-Pd(2) bond lengths are 3.27 Å. All Na(1)-Pd(1) bond lengths are 3.07 Å. Both Na(1)-Si(1) bond lengths are 3.10 Å. There are two shorter (3.16 Å) and two longer (3.32 Å) Na(1)-Si(2) bond lengths. In the second Na site, Na(2) is bonded in a 10-coordinate geometry to four equivalent Pd(1), four equivalent Pd(2), two equivalent Si(1), and two equivalent Si(2) atoms. All Na(2)-Pd(1) bond lengths are 3.10 Å. There are two shorter (3.16 Å) and two longer (3.32 Å) Na(2)-Pd(2) bond lengths. Both Na(2)-Si(1) bond lengths are 3.15 Å. Both Na(2)-Si(2) bond lengths are 3.39 Å. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), two equivalent Si(1), and two equivalent Si(2) atoms. There is one shorter (2.40 Å) and one longer (2.41 Å) Pd(1)-Si(1) bond length. There is one shorter (2.43 Å) and one longer (2.55 Å) Pd(1)-Si(2) bond length. In the second Pd site, Pd(2) is bonded in a 7-coordinate geometry to one Na(1), two equivalent Na(2), two equivalent Si(1), and two equivalent Si(2) atoms. Both Pd(2)-Si(1) bond lengths are 2.44 Å. Both Pd(2)-Si(2) bond lengths are 2.54 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to one Na(1), one Na(2), two equivalent Pd(2), four equivalent Pd(1), and one Si(2) atom. The Si(1)-Si(2) bond length is 2.57 Å. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Na(2), two equivalent Na(1), two equivalent Pd(2), four equivalent Pd(1), and one Si(1) atom.