Diaqua­bis(L-serinato)copper(II) 0.1-hydrate at 120 K

The title compound, [Cu(C₃H₆NO₃)₂(H₂O)₂]·0.1H₂O, is isostructural with the nickel analogue. The octa­hedral Cu^II ion lies on a twofold axis, with cis chelating O,N-serine groups and trans aqua ligands. Small amounts of a solvent water molecule form hydrogen bonds to link the mol­ecules along the [010] direction, while a number of strong hydrogen bonds combine to form sheets in the (110) plane.