Materials Data on CuAgS by Materials Project
AgCuS crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ag1+ is bonded in a bent 150 degrees geometry to two equivalent S2- atoms. There are one shorter (2.50 Å) and one longer (2.51 Å) Ag–S bond lengths. Cu1+ is bonded in a trigonal planar geometry to three equivalent S2- atoms. There are two shorter (2.25 Å) and one longer (2.33 Å) Cu–S bond lengths. S2- is bonded in a 5-coordinate geometry to two equivalent Ag1+ and three equivalent Cu1+ atoms.