The title compound, [CU(C4H5NO4)(C12H8N2)].3.5H(2)O, consists of two t
ypes of different pentacoordinate copper complex: one monomeric, with
the aspartate group acting as a tridentate ligand, and the other polym
eric, with the aspartate group bridging two different copper centers.
The whole structure is held together by a complex hydrogen-bonding sch
eme involving the water molecules of solvation.