Poly[bis­(μ-azido-κ²N¹:N¹)[μ-1,2-bis­(imid­azol-1-yl)ethane-κ²N³:N^3′]cadmium]

In the title three-dimensional coordination polymer, [Cd(N₃)₂(C₈H₁₀N₄)]_n, the coordination geometry around the Cd^II atom is distorted octa­hedral. The Cd^II atom is coordinated by two N atoms from two cis-positioned bridging 1,2-bis­(imidazol-1-yl)ethane (bime) ligands and four N atoms from four azide anions. Each azide ligand acts in an end-on bridging coordination mode. The azide ligands and Cd^II atoms form a one-dimensional zigzag chain constructed from four-membered [Cd(N₃)₂]_n metallacycles extending along the a axis. These inorganic chains are connected with four other chains via bridging bime ligands to form a three-dimensional coordination network.

catena-Poly[[[aqua­(4,4′-dimethyl-2,2′-bipyridine-κ²N,N′)zinc]-μ-3-chloro­benzene-1,2-dicaboxylato-κ²O²:O³] [[(4,4′-dimethyl-2,2′-bipyridine-κ²N,N′)zinc]-μ-3-chloro­benzene-1,2-dicaboxylato-κ²O²:O³]]

In the title compound, {[Zn(C₈H₃ClO₄)(C₁₂H₁₂N₂)(H₂O)]·[Zn(C₈H₃ClO₄)(C₁₂H₁₂N₂)]}_n, one Zn²⁺ ion is five-coordin­ated by two O atoms from two different 3-chloro­benzene-1,2-dicarboxyl­ate ligands, one O atom from a water mol­ecule and two N atoms from a 4,4′-dimethyl-2,2′-bipyridine ligand, while the second Zn²⁺ ion is four-coordinated by two O atoms from two different 3-chloro­benzene-1,2-dicarboxyl­ate ligands, and two N atoms from a 4,4′-bimethyl-2,2′-bipyridine ligand. The crystal structure exhibits a three-dimensional supra­molecular structure composed of alternate Zn(C₈H₃O₄Cl)(C₁₂H₁₂N₂) and Zn(C₈H₃O₄Cl)(C₁₂H₁₂N₂)(H₂O) chains, which are linked together by face-to-face π–π inter­actions [shortest centroid–centroid distances of 3.661 (4) and 3.6901 (3) Å], O—H...O and C—H...O hydrogen bonds.

Triaqua­(cyclo­hex-4-ene-1,2-dicarboxyl­ato-κO¹)(1,10-phenanthroline-κ²N,N′)cobalt(II)

In the title compound, [Co(C₈H₈O₄)(C₁₂H₈N₂)(H₂O)₃], the Co^II atom is coordinated by two N atoms from a bidentate 1,10-phenanthroline ligand, one O atom from a monodentate 4-cyclo­hexene-1,2-dicarboxyl­ate ligand and three water O atoms in a distorted octa­hedral geometry. The mononuclear mol­ecules are engaged in extensive intra- and inter­molecular O—H...O hydrogen-bonding inter­actions and π–π stacking inter­actions [centroid–centroid distance = 3.784 (3) Å], forming a three-dimensional supra­molecular network.

3,3-Dinitro­azetidinium chloride

In the title gem-dinitro­azetidinium chloride salt, C₃H₆N₃O₄⁺·Cl⁻, the cations and anions lie on a mirror plane. The azetidine ring is virtually planar, with a mean deviation from the plane of 0.0569 Å. The dihedral angle between the two nitro groups is 90.00 (5)°. In the crystal, the ions are linked by N—H...Cl interactions, forming a chain along the c-axis direction, and C—H...O inter­actions, forming a layer parallel to (010).