First example of atmospheric carbon dioxide uptake by a cyanocomplex: Preparation and structural characterization of Zn2(tn)2(CO3)Ni(CN)4 · H2O (tn = 1,3-diaminopropane)

Aqueous system Zn(II)-tn-[Ni(CN)4]2− (tn = 1.3-diaminopropane) in contact with air captured carbon dioxide yielding coordination polymer Zn2(tn)2(CO3)Ni(CN)4 · H2O. The carbonato ligand coordinates three zinc atoms by an unusual mode, two by an unidentate and one by a bidentate fashion with one oxygen donor atom forming two ZnO coordination bonds.