catena-Poly[ammonium (cadmium-tri-μ-thio­cyanato-κ4 S:N;κ2 N:S)–1,4,10,13,16-hexa­oxa­cyclo­octa­decane (1/1)]

In the title compound, {(NH4)[Cd(NCS)3]·C12H24O6}n, the Cd2+ ion, the ammonium cation, one of the SCN− ligands and the macrocycle are located on mirror planes. The thiocyanate anions act as bridging ligands between the CdII ions, leading to a polymeric chain arrangement extending along [001] around a twofold screw axis. The ammonium ions are contained within the bowl of the macrocycle via extensive N—H⋯O hydrogen bonding

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catena-Poly[[bis(thiocyanato-κN)cobalt(II)]-di-μ-thiourea-κ4S:S]

In the title polymeric complex, [Co(NCS)2{SC(NH2)2}2]n, the asymmetric unit comprises a CoII ion, which is situated on an inversion centre, an N-bound thiocyanate anion and a μ2-bridging thiourea molecule. The CoII atom is coordinated in a distorted octahedral fashion within an N2S4 donor set. The bridging thiourea ligands link CoII ions into a polymeric chain extending along [100]. The molecular conformation is stabilized by intramolecular N—H...N hydrogen bonds, which generate S(6) ring motifs. The crystal packing is stabilized by N—H...S interactions, which connect the chains into a three-dimensional architecture