YWN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. In the second Y site, Y(2) is bonded to two equivalent N(1) and four equivalent N(3) atoms to form YN6 octahedra that share corners with six equivalent W(1)N4 tetrahedra and edges with two equivalent Y(2)N6 octahedra. W(1) is bonded to one N(1), one N(3), and two equivalent N(2) atoms to form WN4 tetrahedra that share corners with three equivalent Y(2)N6 octahedra and corners with two equivalent W(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-67°. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted T-shaped geometry to one Y(1), one Y(2), and one W(1) atom. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Y(1) and two equivalent W(1) atoms. In the third N site, N(3) is bonded to one Y(1), two equivalent Y(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing NY3W tetrahedra.
YWN3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Both Y(1)-N(1) bond lengths are 2.46 Å. Both Y(1)-N(2) bond lengths are 2.52 Å. Both Y(1)-N(3) bond lengths are 2.34 Å. In the second Y site, Y(2) is bonded to two equivalent N(1) and four equivalent N(3) atoms to form YN6 octahedra that share corners with six equivalent W(1)N4 tetrahedra and edges with two equivalent Y(2)N6 octahedra. Both Y(2)-N(1) bond lengths are 2.28 Å. There are two shorter (2.38 Å) and two longer (2.44 Å) Y(2)-N(3) bond lengths. W(1) is bonded to one N(1), one N(3), and two equivalent N(2) atoms to form WN4 tetrahedra that share corners with three equivalent Y(2)N6 octahedra and corners with two equivalent W(1)N4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-67°. The W(1)-N(1) bond length is 1.79 Å. The W(1)-N(3) bond length is 1.86 Å. There is one shorter (1.89 Å) and one longer (1.93 Å) W(1)-N(2) bond length. There are three inequivalent N sites. In the first N site, N(1) is bonded in a distorted T-shaped geometry to one Y(1), one Y(2), and one W(1) atom. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one Y(1) and two equivalent W(1) atoms. In the third N site, N(3) is bonded to one Y(1), two equivalent Y(2), and one W(1) atom to form a mixture of distorted edge and corner-sharing NY3W tetrahedra.