YbPtAs is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing YbAs6Pt6 cuboctahedra. In the second Yb site, Yb(2) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing YbAs6Pt6 cuboctahedra. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(2), and three equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(2), and three equivalent Pt(1) atoms.
YbPtAs is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing YbAs6Pt6 cuboctahedra. All Yb(1)-Pt(1) bond lengths are 3.15 Å. All Yb(1)-As(1) bond lengths are 3.18 Å. In the second Yb site, Yb(2) is bonded to six equivalent Pt(1) and six equivalent As(1) atoms to form a mixture of face and edge-sharing YbAs6Pt6 cuboctahedra. All Yb(2)-Pt(1) bond lengths are 3.17 Å. All Yb(2)-As(1) bond lengths are 3.14 Å. Pt(1) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(2), and three equivalent As(1) atoms. All Pt(1)-As(1) bond lengths are 2.43 Å. As(1) is bonded in a 9-coordinate geometry to three equivalent Yb(1), three equivalent Yb(2), and three equivalent Pt(1) atoms.