Crystal Structure of Tetrakis Imidazole Copper(II) Diadipate Complex (original) (raw)
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Crystal structure of tetrakis (imidazole) copper(II) bromide (CuBr 2 C 12 N 8 H 12 )
Indian Journal of Pure & Applied Physics, 2003
The crystal and molecular structure of tetrakis imidazo le copper (II) bromide (C uBr 2 C 12 NxH 12) has heen in vesti gated from three-dimensional intensity data. The two imidazole rings bonded to the central Cu atom throu gh the respective N atom. which constitutes one-half of the asymmetric unit of the centrosymmetric stru cture under consideration. The distance between Cu-Br-ion is found to be 3.376{1)A which excludes th e possibility of formation of any covalent bond between them.
Molecules
Five new copper(II) acrylate complexes (acr is the acrylate anion: C3H3O2) with imidazole derivatives (2-methylimidazole/2-MeIm, 5-methylimidazole/5-MeIm, 2-ethylimidazole/2-EtIm) of type: cis-[Cu(2-RIm)2(acr)2]·xH2O ((1): R = –CH3, x = 2; (4): R = –CH2–CH3, x = 0), trans-[Cu(2-RIm)2(acr)2] ((2): R = –CH3; (5): R = –CH2–CH3) and trans-[Cu(5-RIm)2(acr)2] ((3): R = –CH3) have been prepared and characterized by elemental analysis, Fourier Transform Infrared spectrometry (FTIR), Electron Paramagnetic Resonance (EPR), electronic reflectance spectroscopy, scanning electron microscopy, and mass spectrometry. The single crystal X-ray diffraction study of complexes (2) and (5) reveals that the copper(II) ion is located on an inversion center and show elongated octahedral geometry completed by two coplanar bidentate acrylates and two unidentate imidazole derivatives displayed in trans positions. For complex (4) the single crystal X-ray diffraction shows that the copper(II) ion is in a distort...
Structure of catena-bis[4-(2-aminoethyl)imidazole-N3,N8]-μ-chloro-copper(II) chloride dihydrate
Acta Crystallographica Section C-crystal Structure Communications - ACTA CRYSTALLOGR C-CRYST STR, 1987
The distortion of the square pyramid is also important, but less severe than that of the trigonal bipyramid. The four basal atoms N(1), N(2), Br(1) and Br(2) deviate strongly from coplanarity by 0.240, -0.247, -0-183 and 0.190 A, respectively, while the Cu atom deviates from this plane by 0.252 A in the direction of the apical Br atom. The dihedral angle between the unweighted mean planes N(1)-Cu-N(2) and Br(1)-Cu-Br(2) is 24.9 °, thus indicating a distortion towards tetrahedrality, which is quite common in '4 + 1' complexes. The distances and angles of the di-2-pyridylmethane ligand are comparable with those found by us for chloro(di-2-pyridylmethane)-(di-2-pyridylmethanol)copper(II) perchlorate (Garland, Le Marouille, Spodine & Manzur, 1986).
Crystal structure of bis-[1,3,4,5-tetra-methyl-1H-imidazole-2(3H)-thione-κS]chlorido-copper(I)
Acta crystallographica. Section E, Structure reports online, 2014
The mol-ecular structure of the title compound, [CuCl(C7H12N2S)2], shows a slightly distorted trigonal-planar coordination geometry of the Cu atom. The Cu-Cl bond measures 2.2287 (9) Å, and the two Cu-S bonds are significantly different from each other, with values of 2.2270 (10) and 2.2662 (10) Å. Also, the S-Cu-Cl angles differ, with values of 113.80 (4) and 124.42 (4)°, while the S-Cu-S angle is 121.51 (4)°. The two imidazole rings are almost parallel, making a dihedral angle of 2.1 (2)°. In the crystal, the shortest C-H⋯Cl interactions stabilize a three-dimensional network with molecules linked into centrosymmetric dimers that are stacked along the b-axis direction.
trans -Bis(nitrato-κ O )tetrakis(1-vinyl-1 H -imidazole-κ N 3 )copper(II)
Acta Crystallographica Section E Structure Reports Online, 2012
In the title compound, [Cu(NO3)2(C5H6N2)4], the CuIIion is located on an inversion centre. It features a Jahn–Teller-distorted octahedral coordination geometry, defined by four N atoms of four 1-vinylimidazole ligands in the equatorial plane and two nitrate O atoms in the axial positions. The nitrate anion is disordered over two sets of sites in a 0.801 (6):0.199 (6) ratio. In the crystal, the complex molecules are linked by weak intermolecular C—H...O and C—H...π interactions.
Crystal structure of tetrakis (imidazole) copper(ll) bromide (CuBr 2 C 12 Ns Hu)
2003
The crystal and molecular structure of tetrakis imidazole copper (II ) bromide (CuBr2C 12NxH12) has heen in vesti gated from three-dimensional intensity data. The two imidazole rings bonded to the central Cu atom throu gh the respective N atom. which constitutes one-half of the asymmetric unit of the centrosymmetric structure under consideration . The distance between Cu-Brion is found to be 3.376{1)A which excludes the possibility of formation of any covalent bond between them.
Inorganica Chimica Acta, 1991
The complexes cti-bis(acetato)bis(2-methylimidazole)copper(II) (l), and cis-bis(acetato)bis(1,2_dimethylimidazole)copper(II) (2) have been prepared by the reaction of the appropriate imidazole derivative with copper(I1) tetraacetate. The complexes have been characterized by analytical, magnetic, spectroscopic and crystallographic methods. Complex 1 crystallizes in the orthorhombic space group P2212121 and has unit cell dimensions of a =7.5380(10), b=7.7100(10), c=26.310(5) A. Complex 2 crystallizes in the monoclinic space groupP2/c and has unit cell dimensions ofa = 15.574(2), b = 7.9520(10), c = 14.752(2) A.
Crystal structure of trans -diaquabis(1 H -pyrazole-3-carboxylato-κ 2 N , O )copper(II) dihydrate
Acta Crystallographica Section E Crystallographic Communications, 2015
In the title compound, [Cu(C4H3N2O2)2(H2O)2]·2H2O, the CuIIion is located on an inversion centre and exhibits an axially elongated octahedral coordination geometry. The equatorial plane is formed by twoN,O-bidentate 1H-pyrazole-3-carboxylate ligands in atransconfiguration. The axial positions are occupied by two water molecules. The mononuclear complex molecules are arranged in layers parallel to theabplane. Each complex molecule is linked to four adjacent species through intermolecular O—H...O and N—H...O hydrogen bonds that are established between the coordinating water molecules and carboxylate O atoms or protonated N atoms of the organic ligands. These layers are further connected into a three-dimensional network by additional hydrogen bonds involving solvent water molecules and non-coordinating carboxylate O atoms.
(Imidazole-κ N 3 ){ N -[1-(2-oxidophenyl)ethylidene]- L -valinato-κ 3 O , N , O ′}copper(II)
Acta Crystallographica Section E Structure Reports Online, 2008
In each of the two independent molecules in the asymmetric unit of the title compound, [Cu(C 13 H 15 NO 3)(C 3 H 4 N 2)], the Cu II atom is four-coordinated by two O atoms and the N atom of the tridentate Schiff base ligand and one N atom from the imidazole ligand in a distorted square-planar geometry. In the crystal structure, molecules are linked by intermolecular N-HÁ Á ÁO hydrogen bonds.