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  • International Union of Crystallography (IUCr)  (2)
  • Wiley-Blackwell  (2)
  • 1985-1989  (4)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Structure of dimethyl(picrato)(trifluoromethyl)tellurium (1988)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 44 (1988), S. 579-581 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270187011284
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  • 2
    Electronic Resource
    Electronic Resource
    Structure of difluorotris(pentafluorophenyl)arsenic(V) (1986)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 42 (1986), S. 1875-1876 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270186090212
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  • 3
    Electronic Resource
    Electronic Resource
    Conformational studies on the bacterial cell wall peptide analog phenylacetyl-D-alanyl-D-alanine: Comparison between conformations of cell wall peptide analog and those of penicillin G (1985)
    New York : Wiley-Blackwell
    Biopolymers 24 (1985), S. 2087-2112 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The conformation of phenylacetyl-D-alanyl-D-alanine in the crystalline state was characterized by Fourier-transform ir and Raman spectroscopy and was unambiguously solved by x-ray single-crystal determination. In the crystalline state, the molecule adopts a partially folded conformation quite similar to that of another cell wall peptide, acetyl-D-alanyl-D-alanine [Benedetti et al. (1981) J. Biol. Chem. 256, 9229-9234], although the crystal structure is stabilized by a quite different intermolecular hydrogen-bond pattern. No significant deviation from the usual trans-planar peptide group geometry was detected. The conformations accessible in the noncrystalline state were investigated by ir measurements in solution and conformational energy calculations. The theoretical study revealed that the peptide is a highly flexible molecule, since 55 minima were detected, within 3 kcal/mol, including the conformation found in the single crystal. The ir data for phenylacetyl-D-alanyl-D-alanine in different solvents were in accordance with virtually extended conformations, with some indication for weak, intramolecularly hydrogen-bonded C5-rings. These conformational data obtained for the cell wall peptide analog are compared with those known for penicillin G in the crystalline state.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360241107
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  • 4
    Electronic Resource
    Electronic Resource
    Oxidationsreaktionen der Additionsprodukte von CF3l, Te(CF3)2 und Sb(CF3)3 an Cyclohexen (1988)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 560 (1988), S. 141-146 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxidation Reactions of the Addition Products of CF3I, Te(CF3)2, and Sb(CF3)3 to CyclohexeneCF3I, Te(CF3)2, and Sb(CF3)3 add to cyclohexen in good to very good yields to form CF3C6H10I, CF3C6H10TeCF3, and CF3C6H10Sb(CF3)2, respectively, which can be oxidized to the corresponding organo iodine, tellurium, and antimony dihalides. The preparations, properties, and 19F NMR spectra of the new compounds are described.
    Notes: CF3I, Te(CF3)2 und Sb(CF3)3 addieren in guten bis sehr guten Ausbeuten an Cyclohexen unter Bildung von CF3C6H10I, CF3C6H10TeCF3 bzw. CF3C6H10Sb(CF3)2, die zu den entsprechenden Organo-iod-, -tellur- bzw. -antimondihalogeniden oxidiert werden können. Die Darstellungen, Eigenschaften und 19F-NMR-Spektren der neuen Verbindungen werden beschrieben.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19885600116
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