- The complex discussed, {[AgEr(C(5)H(3)N(2)O(2))(2)(C(2)O(4))]·H(2)O}(n), contains an Er(III) atom, an Ag(I) atom, and various ligands including two pyrazine-2-carboxyl-ate (pyc) ligands and oxalate ligands, along with a water molecule.
- The Er(III) atom has a unique coordination involving O and N atoms from the ligands, leading to a distorted geometric arrangement, while Ag(I) is coordinated by multiple ligands as well.
- The crystal structure forms a three-dimensional network and