Abstract
The title compound, {[Ni(C2N3)2(H2O)2]·2C5H5NO}n, is a centrosymmetric two-dimensional coordination polymer with a layer (4,4) network structure. The asymmetric unit is compossed of an NiII atom, which sits on an inversion center, a μ-1,5-bridging dicyanamide anion, a water molecule, and a free 4-hydroxypyridine molecule present in the zwitterionic pyridinium-4-olate form. The NiII atom is coordinated in a slightly distorted N4O2 octahedral geometry by four bridging dicyanamide ligands and two trans water molecules. In the crystal, the two-dimensional networks are linked via N—H⋯O and O—H⋯O hydrogen bonds, forming a three-dimensional network.
Highlights
The title compound, {[Ni(C2N3)2(H2O)2]2C5H5NO}n, is a centrosymmetric two-dimensional coordination polymer with a layer (4,4) network structure
The asymmetric unit is compossed of an NiII atom, which sits on an inversion center, a
H atoms treated by a mixture of independent and constrained refinement max = 0.30 e Å3
Summary
R factor = 0.028; wR factor = 0.073; data-to-parameter ratio = 13.1. The title compound, {[Ni(C2N3)2(H2O)2]2C5H5NO}n, is a centrosymmetric two-dimensional coordination polymer with a layer (4,4) network structure. The asymmetric unit is compossed of an NiII atom, which sits on an inversion center, a. -1,5-bridging dicyanamide anion, a water molecule, and a free 4-hydroxypyridine molecule present in the zwitterionic pyridinium-4-olate form. The NiII atom is coordinated in a slightly distorted N4O2 octahedral geometry by four bridging dicyanamide ligands and two trans water molecules. The two-dimensional networks are linked via N—. H O and O—H O hydrogen bonds, forming a threedimensional network
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