Photocurrent-generating properties of bulk and few-layered Cd(ii) coordination polymers based on a rigid dicarboxylate ligand.

Based on a rigid ligand, 2,5-bis[3'-carboxyl-phenyl] pyridine (H2L), two coordination polymers (CPs) formulated as Cd3L3(DMF)4 (1) and CdL(DMF)·DMF (2) were solvothermally synthesized and characterized by single-crystal X-ray diffraction. CP 1 is a uninodal 6-connected 3D network with a {4(4)·6(10)·8}-mab topology, in which the Cd3 unit with a CdCd separation of 3.61 Å is observed.

Metal-organic frameworks built from achiral 3-(5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)benzoic acid: syntheses and structures of metal(II) complexes.

Using a novel flexible achiral ligand, 3-(5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)benzoic acid (HL), four metal(II)-complexes formulated as ZnL2·2H2O (1), CdL2(H2O)2·8H2O (2) and ML2(H2O)·H2O (M = Co 3 and Ni 4) have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Complexes 1, 3 and 4 all feature a uninodal 2D layer with a 4(4)-sql topology, and two such (4,4) nets interpenetrate in a parallel manner. Complex 2 exhibits a similar 4(4)-sql topology, but no interpenetration is observed in complex 2.

Metal(II) complexes based on 1,4-bis(3-pyridylaminomethyl)benzene: structures, photoluminescence and photocatalytic properties.

Using a novel ditopic N-donor ligand, 1,4-bis(3-pyridylaminomethyl)benzene (L), four metal(II)-complexes formulated as CdL(SO4)(H2O)2 (1), CdL(1,3-bdc) (1,3-H2bdc = 1,3-benzene dicarboxylic acid) (2), PbL(1,3-bdc) (3) and ZnL(1/2)(2,5-tdc) (2,5-H2tdc = 2,5-thiophene dicarboxylic acid) (4) have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Complexes 1 and 3 feature uninodal 4-connected non-interpenetrated sql/Shubnikov tetragonal plane nets with {4(4).6(2)} topology.

Metal-organic frameworks based on 1,3,5-triazine-2,4,6-triyltrithio-triacetate: structures, topologies, photoluminescence and photocatalytic properties.

Using a hemi-rigid multitopic ligand, 1,3,5-triazine-2,4,6-triyltrithio-triacetic acid (H(3)L), three metal(II)-complexes formulated as Pb2L(ox)(1/2)(H2O) (H2ox = oxalic acid) (1), Pb3L2(H2O)2 (2) and Ni6L4(PEP)6(H2O)12·7H2O (PEP = 4-(2-(pyridin-4-yl)ethyl)pyridine) (3) have been hydro(solvo)thermally synthesized and structurally characterized by single-crystal X-ray diffraction. Complex 1 features a novel 4-nodal (3, 4, 5, 6)-connected 3D framework with an unusual (4(2).6(3).

Hexaaqua-cobalt(II) 2,2'-[naphthalene-1,8-diylbis(-oxy)]diacetate dihydrate.

In the title compound, [Co(H(2)O)(6)](C(14)H(10)O(6))·2H(2)O, the 2,2'-[naphthalene-1,8-diylbis(-oxy)]diacetate dianion L is not coordinated to the Co(II) ion. The asymmetric unit contains half of the L dianion, half of a [Co(H(2)O)(6)](2+) cation (both molecules being completed by inversion symmetry), and one water mol-ecule. The crystal packing features O-H⋯O hydrogen bonding between the carboxyl-ate groups, the aqua ligands and the hydrate water mol-ecules.

Octamolybdate-based metal-organic framework with unsaturated coordinated metal center as electrocatalyst for generating hydrogen from water.

Two octamolybdate-based MOFs with unsaturated coordinated metal centers formulated as Cu(3)(Mo(8)O(26))(H(2)O)(2)(OH)(2)(L1)(4) (L1 = 4H-4-amino-1,2,4-triazole) (1) and Ag(4)(Mo(8)O(26))(L2)(2.5)(H(2)O) (L2 = 3,5-dimethyl-4-amino-4H-1,2,4-triazole) (2) were synthesized and structurally characterized by single-crystal X-ray diffractions. Complex 1 exhibits a 1D chain-like structure.

Novel metal(II) coordination polymers based on N,N'-bis-(4-pyridyl)phthalamide as supercapacitor electrode materials in an aqueous electrolyte.

Based on the redox-active L (N,N'-bis-(4-pyridyl)phthalamide) ligand, two porous MOFs formulated as Zn(6)(BPC)(6)(L)(3)·9DMF (H(2)BPC = 4,4'-biphenyldicarboxylic acid) (1) and Cd(2)(TDC)(2)(L)(2)·4H(2)O (H(2)TDC = 2,5-thiophenedicarboxylic acid) (2) were synthesized and structurally characterized by single-crystal X-ray diffractions. Complex 1 features a uninodal 5-connected 3-fold interpenetrated 3D framework with {4(6).6(4)}-bnn hexagonal BN topology.