UCoSi is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Pnma space group. U(1) is bonded to six equivalent Co(1) and six equivalent Si(1) atoms to form a mixture of face and edge-sharing UCo6Si6 cuboctahedra. Co(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Co(1) atoms.
UCoSi is hexagonal omega structure-derived structured and crystallizes in the orthorhombic Pnma space group. U(1) is bonded to six equivalent Co(1) and six equivalent Si(1) atoms to form a mixture of face and edge-sharing UCo6Si6 cuboctahedra. There are a spread of U(1)-Co(1) bond distances ranging from 2.85-3.04 Å. There are a spread of U(1)-Si(1) bond distances ranging from 2.91-2.93 Å. Co(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Si(1) atoms. There is one shorter (2.33 Å) and two longer (2.34 Å) Co(1)-Si(1) bond lengths. Si(1) is bonded in a 9-coordinate geometry to six equivalent U(1) and three equivalent Co(1) atoms.