Syntheses, crystal structures and Hirshfeld surface analysis of a coordination polymer of Cu(II) chlorido and a tris-octahedral complex of Ni(II) containing isonicotinoylhydrazone blockers (original) (raw)
Related papers
Coordination Polymers of Copper(I) Halides
Inorganic Chemistry, 2000
A total of 21 complexes of CuX (X) Cl, Br, I) with bridging ligand (B) 4,4′-dipyridyl (Bpy), pyrazine (Pyz), quinoxaline (Quin), phenazine (Phz), 1,4-diazabicyclo[2.2.2]octane (DABCO), and hexamethylenetetramine (HMTA)) have been synthesized. The products show two stoichiometries: [CuXB] (type 1) and [(CuX) 2 B] (type 2). Both types can be obtained for B) Bpy, depending on the conditions of preparation. In these cases, the type 2 stoichiometry is the kinetic product. Type 2 complexes only are found for B) Pyz (X) I), Quin, Phz, DABCO, and HMTA. Type 1 complexes form for Pyz (X) Cl, Br). Thermogravimetic analyses of the complexes reveal the general decomposition trend: 1 f 2 f [(CuX) 2 B 1/2 ] f CuX. The X-ray crystal structure of [CuBr(Pyz)] (type 1) features copper atoms bridged by Br and Pyz, forming 2D sheets of fused rectangular Cu 4 Br 2 (Pyz) 2 units. The X-ray structure of [(CuI) 2 (Quin)] (type 2) shows 2D layers composed of [Cu 2 I 2 ] ∞ "stair step" chains which are cross-linked by Quin ligands. A total of 16 complexes of CuXL (L) P(OPh) 3) with bridging ligand (B) those above and 1,4-dimethylpiperazine (DMP)) have also been prepared. All of these products, except those of HMTA, are of type 3 formulation, [(CuXL) 2 B]. The HMTA products have the formula [CuX(HMTA)], type 4. Thermal decomposition of the type 3 and 4 complexes occurs with initial loss of B, L, or both. The X-ray structures of [(CuBrL) 2 (Bpy)] and [(CuBrL) 2 (Pyz)] (type 3) reveal 1D chains formed from rhomboidal (LCu) 2 Br 2 units linked by the B ligand. The type 4 structure of [CuBrL(HMTA)] is shown by X-ray to be a simple halidebridged dimer.
Journal of Chemical Crystallography, 2008
A copper(I) complex, poly(chloridobis(imidazolidine-2-thione)thiocyanato dicopper(I)), [Cu 2 (Imt) 2 (SCN)Cl] n (1) (Imt = Imidazolidine-2-thione) has been prepared by the reaction of CuCl 2 with imidazolidine-2thione and potassium thiocyanate in the ratio of 1:1:2. Compound 1 crystallizes in the monoclinic space group P2 1 /a in the form of a coordination polymer, consisting of 2D layers. The solid-state structure is composed of dinuclear units having each copper(I) ion tetrahedrally coordinated. These units aggregate through bridging Imt and thiocyanate leading to a supramolecular 2D-network.
Solvent-dependent 2D-coordination polymers of Cu(I) containing a bridging triazolopyrimidine ligand
Inorganica Chimica Acta, 2011
Two 2D-polymers of Cu(I), [Cu 2 (l-tp)(CH 3 CN)(l-I)(l 3 -I)] n (1) and [Cu 2 (l-tp)(l 3 -I) 2 ] n (2), both obtained from the reaction between copper iodide and 1,2,4-triazolo[1,5-a]pyrimidine (tp) in the presence of KI are described. While in compound 1, tp acts as bridging ligand via N1 and N3 between chair-like [Cu 4 I 4 ] units, in compound 2, tp moieties are placed at both sides of a [Cu n I n ] kinked layer, displaying also a bridging mode but, in this case, through its atoms N3 and N4. These structural differences between both compounds seem to be due to the solvent of crystallization, being acetonitrile for 1 and water for 2. These polymers are the first examples of Cu(I) compounds based on the nucleobase-analog ligand tp.
Inorganic Chemistry Communications, 2015
A new coordination polymer based on copper(II) and pyrazole (pzH) ligand, [CuCl2(ClpzH)2]n, has been obtained by a very easy synthesis and green reaction conditions using water as solvent. The compound was characterized by single crystal X-ray diffraction elemental analyses, infrared and UV-Vis spectroscopies. For the first time the C(2)-chlorination of the pyrazolyl ring keeping the protonation of the N(2)-H is reported. The polymeric crystal structure consists of a one dimensional infinite neutral chain in which the copper(II) atoms are six-coordinated in a slightly distorted octahedral geometry with two nitrogen and four chlorine atoms. In this structure, intermolecular interactions have been identified and studied. Extended structure analyses revealed a novel two-dimensional network supported by intermolecular N\H\Cl and C\H\Cl hydrogen bonds, in addition to the π-π stacking interactions.
Acta Crystallographica Section C Structural Chemistry, 2013
In the title compound, [Cu(C 9 H 5 N 4 O)Cl(C 12 H 8 N 2 )] n or [Cu(tcnoet)Cl(phen)] n , where phen is 1,10-phenanthroline and tcnoet is 1,1,3,3-tetracyano-2-ethoxypropenide, the axially elongated (4 + 2) coordination polyhedron around the Cu II 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-HÁ Á ÁN 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 C 3 O fragment. Data collection: APEX2 (Bruker, 2009); cell refinement: APEX2 and SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure:
Polyhedron, 2006
New coordination polymers based on copper(II) benzoate and pyridinecarboxylate compounds bridged by 3-pyridylmethanol, [CuX 2 (l-3PM) 2 ] n (where X = 2-methyltionicotinate (2-MeSnic) or 2-chlorobenzooate (2-Clbz) and [Cu 3 (2-Clnic) 6 (l-3PM) 4 (3PM) 2 ] n (2-Clnic = 2-chloronicotinate) have been prepared and spectroscopically studied. Both the [CuX 2 (3PM) 2 ] n compounds seem to possess octahedral copper(II) stereochemistry with differing tetragonal distortions. X-ray analysis of [Cu(2-MeSnic) 2 (l-3PM) 2 ] n and [Cu(2-Clbz) 2 (l-3PM) 2 ] n was carried out and it featured tetragonal-bipyramidal geometry around the copper(II) atom. The compound [Cu(2-MeSnic) 2 (l-3PM) 2 ] n is one-dimensional coordination polymer. The compound [Cu(2-Clbz) 2 (l-3PM) 2 ] n is a two-dimensional coordination polymer. The compound [Cu 3 (2-Clnic) 6 (l-3PM) 4 (3PM) 2 ] n is 1-D ''accordion chains'' coordination polymer with different coordination environment around copper(II) atoms. The copper(II) atoms have tetragonal bipyramidal and tetragonal pyramidal environment.
Polyhedron, 2021
HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. First mixed-valence Cu II /Cu I coordination polymer based on 2,5-bis(pyridine-2-yl)-1,3,4-thiadiazole and thiocyanate: Synthesis, structural characterization and antimicrobial in vitro activity assessment
This is about synthesizing new complex combinations of Cu(II), Ni(II), Co(II), Zn(II) with aroylhydrazone ligand isonicotinoylhydrazone-2aldehydefluorene (INHAF) made by condensation of isonicotinoylhydrazine with 2-aldehydefluorene. The complexes have been characterized by analytical data, IR, UV-Vis, NMR spectra, magnetic susceptibility values, thermal analysis and for the Cu(II) complex the ESR spectrum has been registered. For all complexes the biological activity against the Staphylococcus aureus, Escherichia coli, Klebssiella pneumoniae bacteria has been investigated. The experimental data sustain stoichiometry of 1:2 (metal/ligand) for the Cu(II), Ni(II), Zn(II) complexes and of 1:1 for the complex with Co(II). The electronic spectra and the magnetic moments suggest octahedral stereochemistry at the complexes with Cu(II), Ni(II) and the tetrahedral geometry for the Co(II) complex. The INHAF ligand is coordinated bidentate by the O=C amide oxygen and the azomethine nitrogen in the complexes of Cu(II), Ni(II), Co(II) and monodentate by the azomethine nitrogen in the complex of Zn(II).