BaCu2Zn2As3 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), six equivalent Zn(1), three equivalent As(2), and four equivalent As(1) atoms. Cu(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), two equivalent As(1), and two equivalent As(2) atoms. Zn(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one As(2), and three equivalent As(1) atoms. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 7-coordinate geometry to two equivalent Ba(1), two equivalent Cu(1), and three equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), four equivalent Cu(1), and two equivalent Zn(1) atoms.
BaCu2Zn2As3 crystallizes in the orthorhombic Cmcm space group. Ba(1) is bonded in a 19-coordinate geometry to six equivalent Cu(1), six equivalent Zn(1), three equivalent As(2), and four equivalent As(1) atoms. There are two shorter (3.72 Å) and four longer (3.80 Å) Ba(1)-Cu(1) bond lengths. There are four shorter (3.67 Å) and two longer (3.76 Å) Ba(1)-Zn(1) bond lengths. There is one shorter (3.48 Å) and two longer (3.58 Å) Ba(1)-As(2) bond lengths. All Ba(1)-As(1) bond lengths are 3.35 Å. Cu(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), two equivalent As(1), and two equivalent As(2) atoms. There is one shorter (2.45 Å) and one longer (2.54 Å) Cu(1)-As(1) bond length. Both Cu(1)-As(2) bond lengths are 2.54 Å. Zn(1) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one As(2), and three equivalent As(1) atoms. The Zn(1)-As(2) bond length is 2.54 Å. There are two shorter (2.51 Å) and one longer (2.65 Å) Zn(1)-As(1) bond length. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 7-coordinate geometry to two equivalent Ba(1), two equivalent Cu(1), and three equivalent Zn(1) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to three equivalent Ba(1), four equivalent Cu(1), and two equivalent Zn(1) atoms.