Go toArchive
Browse byFacets
Bookbag ( 0 )
'Copper II' in keywords
Results  5 Items
Sorted by   
Section
Publication Year
1998 (1)
1997 (1)
1995 (1)
1994 (1)
1983 (1)
1Author    KonstantinV. Domasevitch3, VeraV. Ponomarevaa, AndreyA. Mokhir3, EduardB. Rusanov3, Joachim Sielerb, Eberhard HoyerbRequires cookie*
 Title    The Phenomenon of Intramolecular Attractive S— O Interactions: Synthesis and Structure of (l,10-Phenanthroline)copper(II) Complexes with Isonitroso-(4-methylthiazol-2-yl)acetamide and Isonitroso-(4-methylthiazol-2-yl)-(benzothiazoI-2-yl)methanide  
 Abstract    Isonitroso-(4-methylthiazol-2-yl)acetamide H (L '), isonitroso-(4-methylthiazol-2-yl)(benzo-thiazol-2-yl)methanide H(L2) and their copper(II) complexes of composition [C u(Phen){L'}(C 104)] (1) and [Cu(Phen){L2}Cl]*C2H5 0 H (2) have been prepared. Crys­ tal and molecular structures of the complexes have been determined from X-ray diffractioon data (1: monoclinic, space group P2]/c, with a = 11.611(2), b = 10.259(2), c = 17.869(4) Ä, ß = 104.67(3)°, V = 2059.1(7) Ä3, Z = 4; R\ = 0.046 for the 2522 unique reflections with I > 2a(I). 2: triclinic, space group PI, with a = 8.351(1), b = 10.876(1), c = 14.891(2) Ä, a = 96.170(8)°, ß = 94.201(9)°, 7 = 106.721(9)°, V = 1280.1(2) A3, Z = 2; R\ = 0.034 for the 4038 unique reflections with I > 2a(I)). In the structure of 1 the coordination polyhedron of Cu2+ is a distorted square pyramid with an oxygen atom of the CIO4 counter anion in the apex (C u -0 2.505(3) A); in complex 2 the copper atom adopts fivefold coordination of a slightly distorted trigonal-bipyramidal geometry with a chlorine atom in the equatorial plane (Cu-Cl 2.3504(9) A). Ethanol of crystallization gives rise to a hydrogen bond at the chlorine atom. In both structures the oximic anions are coordinated to the metal center in a bidentate chelate manner via the nitrogen atom of the nitroso group and the carbonyl oxygen atom (1) or via the benzothiazole nitrogen atom (2) (Cu-O, Cu-N in the range 1.963(2) -2.031 (2) Ä). The thiazole group of the ligands takes no part in the coordination. The nitroso oxygen atoms possess short intramolecular contacts with thiazole sulphur atoms, with d(S— O) at 2.605(3) (1) and 2.676(3) A (2), which may be attributed to a strong intraligand interaction. 
  Reference    Z. Naturforsch. 52b, 323—330 (1997); received September 16 1996 
  Published    1997 
  Keywords    Copper(II), Oximes, Thiazoles, Benzothiazoles, X-Ray 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0323.pdf 
 Identifier    ZNB-1997-52b-0323 
 Volume    52 
2Author    P. Souza, M. A. Mendiola3, A. Arquerob, V. Ferná, E. G Utiérrez-Pueblac, C. Ruiz-ValerocRequires cookie*
 Title    Copper(II) Complexes of Hydrazone Derivatives  
 Abstract    Three benzil based, macrocyclic oxygen-, nitrogen-, and sulfur-containing ligands, (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7,14-dithione-2,4,9,11 -tetraene) ethanol (L 1), 10,1 l-diethoxy-3,4,10,11-tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7.14-dithione-2,4-diene (L2), (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7.14-dione-2,4,9,l 1-tetraene) ethanol (L3); a cyclic ligand, 6-ethoxy-l,6-diphenyl-4-oxo-3,4,5,6-tetrahydro-2,3,5-triazine (L5) and two open chain ligands, benzilsemicarbazone (L6) and benzilbisthiosemicarbazone (L4) are reported. These ligands react with copper(II) chlor­ ide, nitrate and acetate. The complexes obtained have been characterized on the basis o f N M R , IR, electronic and mass spectral studies, conductance and analytical data. The sto-ichiometry and the spectroscopic data o f the complexes indicate that the copper ions are coor­ dinated by neutral ligands or by ligand anions formed by loss o f protons from the ligand. The molecular and crystal structure o f 6-ethoxy-l,6-diphenyl-4-oxo-3,4,5,6-tetrahydro-2,3,5-triazine (L 5) was determined by X-ray diffraction; the space group is triclinic, P 1 with a = 7.865(1), b = 14.101(6), c = 15.733(9) A, a = 69.10(3)°, ß = 75.62(2)°, y = 86.69(2)°, V = 1578(1) A 3, Z = 4. 
  Reference    Z. Naturforsch. 49b, 263—2 (1994); received June 2/October 4 1993 
  Published    1994 
  Keywords    Benzil, Hydrazones, Copper(II), M acroligands, Crystal Structure 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0263.pdf 
 Identifier    ZNB-1994-49b-0263 
 Volume    49 
3Author    E. K. Yudin, K. V. Domasevitch, E. B. RusanovRequires cookie*
 Title    Crystal and Molecular Structure of Isonitrosomalonodiamido- (2,2-dipyridyl)copper(II), Chloride Monohydrate [Cu(Dipy){ONC(CONH2)2}Cl] H20  
 Abstract    The crystal and molecular structure of the complex [Cu(Dipy){NDA}Cl] • H 20 , where (NDA) = {ONC(CONH2)2}~ anion (space group P I, triclinic, with a = 7.834(1), b = 9.923(1), c = 9.952(1)A, a = 93.60(1), ß = 93.65(1), y = 92.72(1)°, Z = 2) has been determined from X-ray diffraction data. The structure was refined to R -0.029 for 2243 reflections with I>3ct(I). The coordination polyhedron of Cu2+ can be described as a distorted square pyra­ mid with a chlorine atom in the apex, and with the central atom situated 0.258(3) A above the base of the pyramid towards the chlorine atom. The complicated system of hydrogen bonding involving the water of crystallization connects copper complex units in to the chains in the c direction. 
  Reference    Z. Naturforsch. 50b, 864—866 (1995); received O ctober 17 1994 
  Published    1995 
  Keywords    Copper(II), Oximes, 2, 2-Dipyridyl, X-Ray Spectra 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0864.pdf 
 Identifier    ZNB-1995-50b-0864 
 Volume    50 
4Author    G. Facchina, M. H. Torrea, E. Kremer3, O. E. Pirob, E. J. BarancRequires cookie*
 Title    Crystal Structure and Spectroscopic Behaviour of a Binuclear Copper(II) Complex of Mefenamic Acid and Dimethylsulfoxide  
 Abstract    The crystal structure of the binuclear Cu(II) complex [Cu(mef)2DMSO]2 (mef = deprotonated N-2,3-dimethylphenyl-anthranilic acid; DMSO = dimethylsulfoxide) has been determined by single-crystal X-ray diffractometry. It crystallizes in the triclinic space group P i with Z = 1. IR and electronic spectra of the compound are also discussed briefly. 
  Reference    Z. Naturforsch. 53b, 871—874 (1998); received April 6 1998 
  Published    1998 
  Keywords    Copper(II), Mefenamic Acid, Crystal Structure, Spectral Data 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0871.pdf 
 Identifier    ZNB-1998-53b-0871 
 Volume    53 
5Author    S. P. Perlepes, ThF. Zafiropoulos, A. G. Galinos, J. M. TsangarisRequires cookie*
 Title    Deprotonated Complexes of Bis(o-aminobenzenesulfonyl)ethylenediamine with Mn(II), Co(II), Ni(II) and Cu(II)  
 Abstract    The new complexes K2[ML2] (M = Mn, Cu), K2[ML2(H20)2] (M = Co, Ni), K2[Cu2L2(OH)2] and K2[Cu2L2(0H)2(H20)4], where LH2 = Bis(o-aminobenzenesulfonyl)ethylenediamine, have been prepared. Properties, X-ray powder patterns, molar conductance measurements, magnetic moments and spectral (IR, diffuse reflectance, visible in solution) data are discussed in terms of possible structural types and the nature of the bonding. Distorted octahedral geometries are proposed for the Mn(II), Co(II), Ni(II) and dimeric Cu(II) chelates in the solid state, while K2[CuL2] appears to have a distorted tetrahedral structure. The Mn(II) complex exhibits evidence of a polymeric configuration. The L 2 ~ anion acts as a bidentate N2 or tetradentate N4 ligand. 
  Reference    Z. Naturforsch. 38b, 350—356 (1983); received October 14 1982 
  Published    1983 
  Keywords    Bis(o-aminobenzenesulfonyl)ethylenediamine, Orthanilamide Complexes, Secondary Acid Sulfonylamide Groups, Copper(II), Subnormal Magnetic Moments 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0350.pdf 
 Identifier    ZNB-1983-38b-0350 
 Volume    38