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1.  Poly[[μ-chlorido-μ-[2-(2,4-di­fluoro­phen­yl)-1,3-bis­(1,2,4-triazol-1-yl)propan-2-ol-κ2 N 4:N 4′]-zinc] chloride dihydrate] 
The title compound, {[ZnCl(C13H12F2N6O)2]Cl·2H2O}n, is a two-dimensional coordination polymer. The ZnII atom is six-coordinated by four N atoms from four 2-(2,4-di­fluoro­phen­yl)-1,3-bis­(1,2,4-triazol-1-yl)propan-2-ol (HFlu) ligands and by two Cl atoms in a distorted octa­hedral geometry. Two Cl atoms bridge two ZnII atoms, forming a centrosymmetric dinuclear unit. The HFlu ligands connect the dinuclear units into a 44 net parallel to (001) when the dinuclear unit is considered as a node. O—H⋯O and O—H⋯Cl hydrogen bonds link the cationic layer, free chloride anions and lattice water mol­ecules. Intra­layer π–π inter­actions between the triazole rings are observed [centroid–centroid distance = 3.716 (6) Å].
doi:10.1107/S1600536813026524
PMCID: PMC3884242  PMID: 24454018
2.  catena-Poly[(di­aqua­cadmium)-μ-iminodi­acetato-κ4 O,N,O′:O′′] 
In the title compound, [Cd(C4H5NO4)(H2O)2]n, the CdII atom exhibits a distorted octa­hedral coordination geometry, defined by one N atom and three O atoms from two iminodi­acetate (IDA) ligands and two water molecules. The tridentate IDA ligand additionally bridges via one of its carboxylate O atoms to another CdII atom, thus forming a zigzag chain along [001]. A three-dimensional network is completed by inter­molecular O—H⋯O and N—H⋯O hydrogen bonds.
doi:10.1107/S1600536813017121
PMCID: PMC3772440  PMID: 24046583
3.  μ-Oxalato-κ4 O 1,O 2:O 1′,O 2′-bis­[aqua­(2,2′-bipyridine-κN)(nitrato-κ2 O,O′)lead(II)] 
The title compound, [Pb2(C2O4)(NO3)2(C10H8N2)2(H2O)2], was synthesized hydro­thermally. The binuclear complex mol­ecule is centrosymmetric, the inversion centre being located at the mid-point of the oxalate C—C bond. The PbII ion is hepta­coordinated by the O atom of one water mol­ecule, two oxalate O atoms, two nitrate O atoms and two 2,2′-bipyridine N atoms, forming an irregular coordination environemnt. Inter­molecular O—H⋯O hydrogen bonds between water mol­ecules and oxalate and nitrate ions result in the formation of layers parallel to (010). π–π inter­actions between pyridine rings in adjacent layers, with centroid–centroid distances of 3.584 (2) Å, stabilize the structural set-up.
doi:10.1107/S1600536812040196
PMCID: PMC3470178  PMID: 23125622
4.  Dichlorido(ethanol-κO)[2-(1,3-thia­zol-4-yl-κN)-1H-benzimidazole-κN 3]copper(II) 
In the title complex, [CuCl2(C10H7N3S)(C2H5OH)], the CuII ion is five-coordinated in a distorted square-pyramidal geometry by two N atoms from a 2-(1,3-thia­zol-4-yl)-1H-benzimidazole ligand, one O atom from an ethanol mol­ecule and two Cl atoms. In the crystal, O—H⋯Cl and N—H⋯Cl hydrogen bonds link the complex mol­ecules into a layer parallel to (100). π–π inter­actions between the thia­zole rings are observed [centroid–centroid distance = 3.749 (3) Å].
doi:10.1107/S1600536812013037
PMCID: PMC3343892  PMID: 22589860
5.  Poly[[μ2-aqua-μ3-(4-carb­oxy-2-propyl-1H-imidazole-5-carboxyl­ato-κ4 N 3,O 4:O 4:O 5)-sodium] hemihydrate] 
In the title compound, {[Na(C8H9N2O4)(H2O)]·0.5H2O}n, the Na+ ion is coordinated by two bridging water mol­ecules, one N atom and three O atoms from three 4-carb­oxy-2-propyl-1H-imidazole-5-carboxyl­ate (H2pimdc) ligands. Adjacent Na+ ions are linked alternately by two water O atoms and two carb­oxy O atoms into a chain along [001]. These chains are connected through the coordination of the carboxyl­ate O atoms to the Na+ ions, forming a three-dimensional structure. An intra­molecular O—H⋯O hydrogen bond and inter­molecular N—H⋯O and O—H⋯O hydrogen bonds are present in the crystal structure.
doi:10.1107/S1600536811007732
PMCID: PMC3099890  PMID: 21753940

Results 1-5 (5)