Polymeric bis­(hydrogen pyrazine-2,3-di­carboxyl­ato)copper(II) N,N′-di­methyl­form­amide disolvate

In the title compound, {[Cu(C₆H₃N₂O₄)₂]·2C₃H₇NO}_n, each copper(II) center is surrounded by two N atoms, two bridging carboxyl­ate O atoms from two pyrazine-2,3-di­carboxyl­ate anions, and two bridging carboxyl­ate O atoms of two pyrazine-2,3-di­carboxyl­ate anions from neighboring units, forming an elongated CuN₂O₄ octahedron. The [Cu(C₆H₃N₂O₄)₂] blocks, with the copper(II) cation located on a center of inversion, are connected together by four μ-carboxyl­ate bridges, creating a one-dimensional intersecting double chain.