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  • 2000-2004  (5)
  • 1970-1974  (9)
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  • 1
    Electronic Resource
    Electronic Resource
    Syntheses, structures, and laser Raman and infrared spectra of Co(NH3)6CuCl5, [Co(NH3)5OH2] CuCl5, Co(NH3)6CdCl5, Co(NH3)6ZnCl5, and Co(NH3)6ZnCl4(NO3) (1970)
    s.l. : American Chemical Society
    Inorganic chemistry 9 (1970), S. 459-464 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50085a006
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structural studies of (.pi.-C5H5)2MX2 complexes and their derivatives. Structure of (1,1'-trimethylene-.pi.-dicyclopentadienyl)hafnium dichloride (1974)
    s.l. : American Chemical Society
    Inorganic chemistry 13 (1974), S. 2880-2885 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50142a022
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Structures of three cis-β1 and three cis-β2 isomers of [Co(trien)(aminoacidato)]2+ complexes (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 45-53 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structures and absolute configurations of three cis-β1 and three cis-β2 isomers of [Co(trien)(L-aminoacidato)]2+, namely β1-Λ(SSS)(λλδ)/(λδδ)-[Co(trien)(L-isoleucinato)](ClO4)2, L-isoleucinato(triethylenetetramine)cobalt(III) diperchlorate (1), β1-Λ(SRS)(λδλ)-[Co(trien)(L-valinato)](ClO4)2, L-valinato(triethylenetetramine)cobalt(III) diperchlorate (2), β1-Δ(RSS)(δλδ)-[Co(trien)(L-pyroglutamato)]ClO4, L-pyroglutamato(triethylenetetramine)cobalt(III) perchlorate (3), β2-Δ(RRS)(δδλ)-[Co(trien)(L-isoleucinato)]I2·H2O, L-isoleucinato(triethylenetetramine)cobalt(III) diiodide monohydrate (4), β2-Δ(RRS)(δδλ)-[Co(trien)(L-isoleucinato)](ClO4)2·2H2O, L-isoleucinato(triethylenetetramine)cobalt(III) diperchlorate dihydrate (5), and β2-Λ(SSS)(δλλ)[Co(trien)(L-leucinato)](ClO4)2·2H2O, L-leucinato(triethylenetetramine)cobalt(III) diperchlorate dihydrate (6), have been determined. Both β1 and β2 isomers form inter-cation hydrogen-bonding interactions through double or triple hydrogen bonds which link the cations into helices. However, the motifs of the interactions are different in β1 and β2 isomers, resulting in different packing structures. A localized hydrophobic area is observed in the packing structure of (1), a unique feature amongst these six structures. This work describes the first synthesis of the β1 isomer by direct reaction between amino acids and cis-α-[Co(trien)Cl2]Cl in mildly basic solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108768100013896
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  • 4
    Electronic Resource
    Electronic Resource
    Triazidocobalt(III) complexes with tridentate amine ligands (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 1326-1329 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compounds, [N-(2-aminoethyl)-1,3-propanediamine-κ3N]triazidocobalt(III), [Co(N3)3(C5H15N3)], [N-(2-aminoethyl)-N-methyl-1,3-propanediamine-κ3N]triazidocobalt(III), [Co(N3)3(C6H17N3)], [N-(2-aminopropyl)-1,3-propanediamine-κ3N]triazidocobalt(III), [Co(N3)3(C6H17N3)], and [N-(2-aminopropyl)-N-methyl-1,3-propanediamine-κ3N]triazidocobalt(III), [Co(N3)3(C7H19N3)], each consist of a CoIII atom, three azide ligands in a meridional configuration and a tridentate amine ligand, namely aepn [N-(2-aminoethyl)-1,3-propanediamine] or dpt [N-(3-aminopropyl)-1,3-propanediamine], or their N-methylated analogs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011793
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  • 5
    Electronic Resource
    Electronic Resource
    Conformational isomers of neutral trans-dinitrocobalt(III) complexes (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 33-35 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The reaction of Co(acac)3 with N-(2-aminoethyl)-1,3-propanediamine in the presence of NaNO2 results in the preparation of an unexpected dinitrocobalt(III) compound, (11-amino-4-methyl-5,8-diazaundeca-2,4-dien-2-olato-κ4N5,8,11,O)-dinitrocobalt(III), [Co(C10H20N3O)(NO2)2], containing the tetradentate anion of 11-amino-4-methyl-5,8-diazaundeca-2,4-dien-2-ol. Two isomers of the compound were obtained by recrystallization of the crude product. In one isomer, the two trans nitro groups are staggered, and in the other they are eclipsed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100014463
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  • 6
    Electronic Resource
    Electronic Resource
    10-Ethyl-3-(4-methoxyphenyl)-1,2,4-triazolo[4′,3′:2,3]-1,2,4-triazino[5,6-b]indole (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e472-e473 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Oxidative cyclization of 5-ethyl-3-(4-methoxybenzylidene)hydrazino-1,2,4-triazino[5,6-b]indole gave the linearly annelated title compound, C19H16N6O. The skeleton is approximately planar, except for the ethyl group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010827010001194X
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  • 7
    Electronic Resource
    Electronic Resource
    Structure of a novel fluxional molecule: 1,2,3-trithia-[3]-ferrocenophane (1972)
    Springer
    Journal of chemical crystallography 2 (1972), S. 107-114 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The crystal and molecular structure of 1,2,3-trithia-[3]-ferrocenophane has been determined from three-dimensional X-ray data collected by counter techniques. The molecule consists of two nearly parallel, eclipsed cyclopentadienyl rings linked by an S3 bridge. The material crystallizes in the monoclinic space groupP21/c with unit cell parametersa = 9·628(3),b = 9·347(4),c= 11·408(4) Å, β = 96·70(3) °. The structure was solved by standard techniques and the least-squares refinement converged to a conventionalR factor of 9·6 %.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464791
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  • 8
    Electronic Resource
    Electronic Resource
    Crystal structures and magnetic properties ofA 2MnCl6 salts (A = NH4 +, K+ and Rb+) (1972)
    Springer
    Journal of chemical crystallography 2 (1972), S. 143-149 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The temperature dependence of the magnetic susceptibility ofA 2MnCl6 salts (A = NH4 +, K+, Rb+) has been measured, and their crystal structures determined using powder X-ray diffraction methods. The structures of these simple cubic salts are governed by thex coordinate of the halide ion. The magnetic and the structural data suggest the presence of antiferromagnetic interactions between adjacent MnCl 6 2− octahedra across bridges of the type as were found in related iridium salts: the susceptibility and the structural data have been used to estimate separately the values of ratios of the exchange integrals between pairs of salts; the agreement is better than 6 %.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464795
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  • 9
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of bis(cyclopentadienyl)tungsten tetrasulphide (1972)
    Springer
    Journal of chemical crystallography 2 (1972), S. 135-142 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The crystal and molecular structure of bis(cyclopentadienyl)tungsten tetrasulphide, (C5H5)2WS4, has been determined from three-dimensional X-ray data collected by counter techniques. The coordination about the tungsten atom, consisting of the two terminal sulfur atoms of the tetrasulphide chain and the ring centroids of the two cyclopentadienyl rings, may be described as a distorted tetrahedron. The inner S-S bond distance is found to be somewhat shorter than the outer two S-S bond distances in the tetrasulphide chain. The substance crystallizes in the monoclinic space groupP21/n witha = 11·242(3),b = 12·154(5),c = 8·790(2) Å and β = 92·93(3) °. The structure was refined by least-squares techniques using 1581 independent reflections for whichFsk0/2 〉 2σ(Fsk0/2), and the refinement converged at a conventionalR factor (onF) of 4·5 %.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01464794
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  • 10
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of bis(tetramethylammonium) di(π-(1)-2-thiollyl)iron(II) (1972)
    Springer
    Journal of chemical crystallography 2 (1972), S. 261-270 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The crystal and molecular structure of bis(tetramethylammonium)di(π-(1)-2-thiollyl)iron(II), C8H44B20FeN2S2, has been determined from three-dimensional X-ray data collected by counter techniques. The material crystallizes in the orthorhombic system: space groupIbam, z=4, a=15·585(5), b=12·324(4), and c=14·806(6) Å. The B10H10S2− moiety is an icosahedron with the sulphur atom and four boron atoms forming that part of the cage which is within bonding distance of the iron. The sulphur atom and one boron atom are disordered. The structure was solved by standard techniques and the least squares refinement, using 969 independent reflexions for whichF 0 2 ⩾ 3σ(F 0 2), converged to a conventionalR factor (onF) of 4·2%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01246643
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