Poly[[chlorido-(1,10-phenanthroline-κ2N,N′)copper(II)]-μ3-1,1,3,3-tetra-cyano-2-eth-oxy-propenido- κ3N:N′:N′′] : coordination polymer sheets linked into bilayers by hydrogen bonds

The authors acknowledge the Algerian DG–RSDT (Direction Generale de la Recherche Scientifique et du Developpement Technologique) and the Algerian ATRST (Agence Thematique de Recherche en Sciences et Technologie; PNR project) for financial support. ZS thanks Sandra Lebaroud for her help in preparing the manuscript and the Unit of Support for Technical and Scientific Research (UATRS, CNRST) for the X-ray measurements.In the title compound, [Cu(C9H5N4O)Cl(C12H8N2)] n or [Cu(tcnoet)Cl(phen)] n , where phen is 1,10-phenanthroline and tcnoet is 1,1,3,3-tetra-cyano-2-eth- oxy-propenide, the axially elongated (4 + 2) coordination polyhedron around the CuII centre contains N atoms from three different tcnoet ligands. The resulting coordination polymer takes the form of sheets which are linked in pairs by a single C - H⋯N hydrogen bond to form bilayers. The bond lengths provide evidence for significant bond fixation in the phen ligand and extensive electronic delocalization in the tcnoet ligand, where the two -C(CN)2 units are rotated, in conrotatory fashion, out of the plane of the central C3O fragment.Publisher PDFPeer reviewe

Coexistence of spin canting and metamagnetism in a one-dimensional Mn(II) compound bridged by alternating double end-to-end and double end-on azido ligands and the analog co(II) compound

Metals in Catalysis, Biomimetics & Inorganic Material

Synthesis, structure and luminescence properties of zinc and cadmium linear-chain compounds with anionic monoalkoxy-tetracyanopropenes bridged by 4,4 '-bipyridines

The synthesis, characterization and 3D structure determination of Zinc and Cadmium compounds are reported, containing the non-chelating bidentate ligand 4,4'-bipyridine and the anions 1,1,3,3-tetracyano-2-propoxy-propenide (tcnopr) or 1,1,3,3-tetracyano-2-ethoxy-propenide (tcnoet). The structures consist of linear chains (1D) built from metal ions and 4,4'-bipyridine, where the octahedral coordination around the metals is completed by two trans anions tcnoet (or tcnopr), and two trans-oriented water molecules. Weak interchain interactions are present, based on hydrogen bonds between the water ligands (both hydrogens are involved) and two CN groups of two nearby other chains. Metal-ligand distances appear as uneventful. For the same anion, the Zn and Cd compounds are isomorphous. Possible decomposition of the compounds has been investigated in the temperature range 30-800 degrees C in a static air atmosphere. Thermal analysis studies (TG, DTG, DTA) show that the axial water ligands for all three compounds are gradually lost upon heating above 60 degrees C to about 170 degrees C. Luminescence properties, recorded as powders, are reported as well, and these appear as strong for the Cd compound I, when irradiated at 390 nm, extremely weak for the Cd compound II, when irradiated at wavelengths from 300-400 nm, and moderately weak for the Zn compound III when irradiated at 385 nm. (C) 2019 The Author(s). Published by Elsevier Ltd.Metals in Catalysis, Biomimetics & Inorganic Material

The non-coordinating anion 1,1,3,3-tetracyano-2-propoxy-propenide as an anion-pi donor in cis-diaquabis(2,2 '-dipyridylamine)zinc and its cadmium analog: Luminescence properties, Hirshfeld analysis and central-atom induced polymorphism

Metals in Catalysis, Biomimetics & Inorganic Material

Tris(2,2'-bipyridine)iron(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide) dihydrate : chiral hydrogen-bonded frameworks interpenetrate in three dimensions

The authors acknowledge the Algerian Ministry of Higher Education and Scientific Research, the Algerian Directorate-General for Scientific Research and Technological Development, and Ferhat Abbas Setif 1 University for financial support.In the title compound, [Fe(C10H8N2)3](C9H5N4O)2·2H2O, the chiral cations lie across twofold rotation axes in the space group C2/c. The anions and the water molecules are linked by two independent O-H⋯N hydrogen bonds to form C22(8) chains, and these chains are linked by the cations via C-H⋯N and C-H⋯O hydrogen bonds to form two interpenetrating three-dimensional frameworks, each of which contains only one enantiomeric form of the chiral cation.Publisher PDFPeer reviewe

Coordination polymer chains built from CuII and adipate ions linked by hydrogen bonds to form a three-dimensional framework structure

In the title compound, catena-poly[bis[(2,2'-bipyridine-κ2N,N')(1,1,3,3-tetracyano-2-ethoxypropenido-κN)copper(II)]-μ4- hexanedioato-κ6O1,O1:O1 :O6,O6':O6], [Cu2(C9H5N4O)2(C6H8O4)(C10H8N2)2]n , the adipate (hexanedioate) dianion lies across a centre of inversion in the space group P. The CuII centre adopts a distorted form of axially elongated (4+2) coordination, and the CuII and adipate components form a one-dimensional coordination polymer from which the 2,2'-bipyridine and 1,1,3,3-tetracyano-2-ethoxypropenide components are pendent, and where each adipate dianion is bonded to four different CuII centres. The coordination polymer chains are linked into a three-dimensional framework structure by a combination of C-H⋯N and C-H⋯O hydrogen bonds, augmented by a π-π stacking interaction.Publisher PDFPeer reviewe

Catena-Poly[[[4-amino-3,5-bis­(pyridin-2-yl)-4H-1,2,4-triazole-κ2N1,N5](di­cyanamido-κN)copper(II)]-μ2-dicyan­amido-κ2N:N'] : coordination polymer chains linked into a bilayer by hydrogen bonds and π-π Stacking interactions

The authors acknowledge the Algerian DG–RSDT (Direction Generale de la Recherche Scientifique et du Developpement Technologique) and the Algerian ATRST (Agence Thematique de Recherche en Sciences et Technologie; PNR project) for financial support.In the title compound, [Cu(C2N3)2(C12H10N6)]n or [Cu(dca)2(abpt)]n, where abpt is 4-amino-3,5-bis(pyridin-2-yl)-H-1,2,4-triazole and dca is the dicyanamide anion, the CuII centre is five-coordinate with an approximately square-pyramidal geometry. One of the two dicyanamide ligands is a terminal ligand, but the other one acts as a μ1,5-bridging ligand between pairs of CuII centres, so generating a one-dimensional coordination polymer. A combination of N - H⋯N and C - H⋯N hydrogen bonds, augmented by π-π stacking interactions, links the coordination polymer chains into a bilayer structure. Comparisons are made with some related CuII complexes containing dca ligands and heteroaromatic co-ligands.Publisher PDFPeer reviewe