Text this: Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide