UAs(O2F)2(CN)2 crystallizes in the orthorhombic Fddd space group. The structure consists of sixteen 1,2-diazatricyclo[1.1.0.02,4]butane molecules inside a UAs(O2F)2 framework. In the UAs(O2F)2 framework, U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form UO4F2 octahedra that share corners with four equivalent As(1)O4 tetrahedra. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with four equivalent U(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 7-49°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one U(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one U(1) and one As(1) atom. F(1) is bonded in a single-bond geometry to one U(1) atom.
UAs(O2F)2(CN)2 crystallizes in the orthorhombic Fddd space group. The structure consists of sixteen 1,2-diazatricyclo[1.1.0.02,4]butane molecules inside a UAs(O2F)2 framework. In the UAs(O2F)2 framework, U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent F(1) atoms to form UO4F2 octahedra that share corners with four equivalent As(1)O4 tetrahedra. Both U(1)-O(1) bond lengths are 2.16 Å. Both U(1)-O(2) bond lengths are 2.23 Å. Both U(1)-F(1) bond lengths are 2.04 Å. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with four equivalent U(1)O4F2 octahedra. The corner-sharing octahedral tilt angles range from 7-49°. Both As(1)-O(1) bond lengths are 1.72 Å. Both As(1)-O(2) bond lengths are 1.72 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one U(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one U(1) and one As(1) atom. F(1) is bonded in a single-bond geometry to one U(1) atom.