BaCu6As2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a 16-coordinate geometry to eight equivalent Cu(1) and eight equivalent As(1) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Ba(1), two equivalent Cu(2), two equivalent Cu(3), and two equivalent As(1) atoms. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to eight equivalent Cu(1) and two equivalent As(1) atoms. In the third Cu site, Cu(3) is bonded in a body-centered cubic geometry to eight equivalent Cu(1) atoms. As(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Cu(2), and four equivalent Cu(1) atoms.
BaCu6As2 crystallizes in the tetragonal P4/mmm space group. Ba(1) is bonded in a 16-coordinate geometry to eight equivalent Cu(1) and eight equivalent As(1) atoms. All Ba(1)-Cu(1) bond lengths are 3.65 Å. All Ba(1)-As(1) bond lengths are 3.44 Å. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted bent 120 degrees geometry to two equivalent Ba(1), two equivalent Cu(2), two equivalent Cu(3), and two equivalent As(1) atoms. Both Cu(1)-Cu(2) bond lengths are 2.50 Å. Both Cu(1)-Cu(3) bond lengths are 2.50 Å. Both Cu(1)-As(1) bond lengths are 2.41 Å. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to eight equivalent Cu(1) and two equivalent As(1) atoms. Both Cu(2)-As(1) bond lengths are 2.61 Å. In the third Cu site, Cu(3) is bonded in a body-centered cubic geometry to eight equivalent Cu(1) atoms. As(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1), one Cu(2), and four equivalent Cu(1) atoms.