CeAgAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), two equivalent As(2), and four equivalent As(3) atoms. In the second Ce site, Ce(2) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), two equivalent As(2), and four equivalent As(3) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner and face-sharing AgCe4Ag4As4 cuboctahedra. In the second Ag site, Ag(2) is bonded to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner and face-sharing AgCe4Ag4As4 cuboctahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), and two equivalent Ag(2) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), and two equivalent Ag(2) atoms. In the third As site, As(3) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent As(3) atoms.
CeAgAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the orthorhombic Pbcm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), two equivalent As(2), and four equivalent As(3) atoms. Both Ce(1)-Ag(1) bond lengths are 3.45 Å. Both Ce(1)-Ag(2) bond lengths are 3.46 Å. There is one shorter (3.01 Å) and one longer (3.02 Å) Ce(1)-As(1) bond length. Both Ce(1)-As(2) bond lengths are 3.04 Å. There are two shorter (3.02 Å) and two longer (3.03 Å) Ce(1)-As(3) bond lengths. In the second Ce site, Ce(2) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), two equivalent As(2), and four equivalent As(3) atoms. Both Ce(2)-Ag(1) bond lengths are 3.51 Å. Both Ce(2)-Ag(2) bond lengths are 3.50 Å. Both Ce(2)-As(1) bond lengths are 3.06 Å. There is one shorter (3.03 Å) and one longer (3.05 Å) Ce(2)-As(2) bond length. There are two shorter (3.05 Å) and two longer (3.08 Å) Ce(2)-As(3) bond lengths. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner and face-sharing AgCe4Ag4As4 cuboctahedra. Both Ag(1)-Ag(1) bond lengths are 2.91 Å. There is one shorter (2.87 Å) and one longer (2.89 Å) Ag(1)-Ag(2) bond length. Both Ag(1)-As(1) bond lengths are 2.80 Å. Both Ag(1)-As(2) bond lengths are 2.78 Å. In the second Ag site, Ag(2) is bonded to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), two equivalent Ag(2), two equivalent As(1), and two equivalent As(2) atoms to form a mixture of distorted corner and face-sharing AgCe4Ag4As4 cuboctahedra. Both Ag(2)-Ag(2) bond lengths are 2.91 Å. Both Ag(2)-As(1) bond lengths are 2.78 Å. Both Ag(2)-As(2) bond lengths are 2.79 Å. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), and two equivalent Ag(2) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), two equivalent Ag(1), and two equivalent Ag(2) atoms. In the third As site, As(3) is bonded in a 8-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), and four equivalent As(3) atoms. There are a spread of As(3)-As(3) bond distances ranging from 2.69-3.08 Å.