Bis(μ-salicylaldehyde semicarbazonato)bis­[formatocopper(II)]

The salicylaldehyde semicarbazonate anion O,N,O-chelates to the Cu atom in the title compound, bis­[μ-2-(semicarb­azono­meth­yl)phenolato]-1κ³O³,N¹,O:2κO;1κO:2κ³O³,N¹,O-bis­[(form­ato-κO)copper(II)] [Cu₂(C₈H₈N₃O₂)₂(CHO₂)₂], the N and O atoms occupying three sites of the square-planar environment around it. The fourth site is occupied by the negatively charged O atom of the formate anion. Two mol­ecules are bridged through the phen­oxy O atom across a center of symmetry to give a dinuclear compound, so that the Cu atom exists in a square-pyramidal geometry [Cu←O_phen­oxy = 2.546 (1) Å in the apical position]. Hydrogen bonds link the dinuclear mol­ecules into a three-dimensional network architecture.