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  • 1995-1999  (1)
  • 1965-1969  (1)
  • Chemistry  (2)
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  • 1995-1999  (1)
  • 1965-1969  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    On alternant molecules with identical energy spectra: Isospectral molecules (1997)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 62 (1997), S. 167-169 
    Details
    ISSN: 0020-7608
    Keywords: Chemistry ; Theoretical, Physical and Computational Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: It is shown that if a pair of alternant molecules are isospectral (they have identical energy spectra) in the topological - Hückel - approximation they are also isospectral, taking into account the electron correlation. The proof is given in the AMO approximation using a Hubbard Hamiltonian. © 1997 John Wiley & Sons, Inc.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
  • 2
    Electronic Resource
    Electronic Resource
    Farbe und Fluoreszenz ringförmiger Siliciumverbindungen. VII. Polymere Siliciumsulfide mit Schichtstruktur (1969)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 365 (1969), S. 321-324 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Calcium disilicide, CaSi2, reacts with sulphur chlorides without degradation of the silicon layers to from silicon subsulphides. In the case of S2Cl2, (SiS)n is formed in which the Si valencies set free are saturated by —S—S-bridges.
    Notes: Calciumdisilicid reagiert mit Schwefelchloriden unter Erhaltung der Siliciumschicht zu Siliciumsubsulfiden. Bei der Reaktion mit S2Cl2 entsteht (SiS)n, in dem die freiwerdenden Si-Valenzen durch —S—S-Brücken abgesättigt sind.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19693650513
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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