Pošalji zapis e-poštom: Crystal structures of two Cu(II) compounds: catena-poly[[chlorido­copper(II)]-μ-N-[eth­oxy(pyridin-2-yl)methyl­idene]-N′-[oxido(pyridin-3-yl)methyl­idene]hydrazine-κ(4) N,N′,O:N′′] and di-μ-chlorido-1:4κ(2) Cl:Cl-2:3κ(2) Cl:Cl-di­chlorido-2κCl,4κCl-bis[μ(3)-eth­oxy(pyridin-2-yl)methano­lato-1:2:3κ(3) O:N,O:O;1:3:4κ(3) O:O:N,O]bis­[μ(2)-eth­oxy(pyridin-2-yl)methano­lato-1:2κ(3) N,O:O;3:4κ(3) N,O:O]tetracopper(II)