Citation: Amalija Golobi\catena-Poly[disodium [[tris(formato-\kO)copper(II)]-\m~2~-formato-\k^2^O:O']], with partial substitution of formate by acetate, Na~2n~[Cu(O~2~CH)~4{-~x}(O~2~CCH~3~)~x~]~n~ (x = 0.28). Acta Crystallographica Section E, 59, pp. m165-m167.