Pd2As crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Pd(2), two equivalent Pd(4), three equivalent Pd(3), one As(2), and three equivalent As(1) atoms. In the second Pd site, Pd(2) is bonded in a 11-coordinate geometry to one Pd(1), two equivalent Pd(3), four equivalent Pd(4), two equivalent As(1), and two equivalent As(2) atoms. In the third Pd site, Pd(3) is bonded in a 10-coordinate geometry to two equivalent Pd(2), three equivalent Pd(1), two equivalent As(2), and three equivalent As(1) atoms. In the fourth Pd site, Pd(4) is bonded in a 4-coordinate geometry to two equivalent Pd(1), four equivalent Pd(2), and four equivalent As(2) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to two equivalent Pd(2), three equivalent Pd(1), and three equivalent Pd(3) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to one Pd(1), two equivalent Pd(2), two equivalent Pd(3), and four equivalent Pd(4) atoms.
Pd2As crystallizes in the orthorhombic Cmc2_1 space group. There are four inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Pd(2), two equivalent Pd(4), three equivalent Pd(3), one As(2), and three equivalent As(1) atoms. The Pd(1)-Pd(2) bond length is 2.86 Å. Both Pd(1)-Pd(4) bond lengths are 2.87 Å. There is one shorter (2.81 Å) and two longer (2.87 Å) Pd(1)-Pd(3) bond lengths. The Pd(1)-As(2) bond length is 2.65 Å. There are two shorter (2.48 Å) and one longer (2.56 Å) Pd(1)-As(1) bond length. In the second Pd site, Pd(2) is bonded in a 11-coordinate geometry to one Pd(1), two equivalent Pd(3), four equivalent Pd(4), two equivalent As(1), and two equivalent As(2) atoms. Both Pd(2)-Pd(3) bond lengths are 2.90 Å. There are two shorter (2.89 Å) and two longer (2.91 Å) Pd(2)-Pd(4) bond lengths. Both Pd(2)-As(1) bond lengths are 2.68 Å. There is one shorter (2.48 Å) and one longer (2.54 Å) Pd(2)-As(2) bond length. In the third Pd site, Pd(3) is bonded in a 10-coordinate geometry to two equivalent Pd(2), three equivalent Pd(1), two equivalent As(2), and three equivalent As(1) atoms. Both Pd(3)-As(2) bond lengths are 2.56 Å. There is one shorter (2.57 Å) and two longer (2.92 Å) Pd(3)-As(1) bond lengths. In the fourth Pd site, Pd(4) is bonded in a 4-coordinate geometry to two equivalent Pd(1), four equivalent Pd(2), and four equivalent As(2) atoms. There are two shorter (2.55 Å) and two longer (2.77 Å) Pd(4)-As(2) bond lengths. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to two equivalent Pd(2), three equivalent Pd(1), and three equivalent Pd(3) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to one Pd(1), two equivalent Pd(2), two equivalent Pd(3), and four equivalent Pd(4) atoms.