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  • Articles  (4)
  • General Chemistry  (2)
  • Electronic structure of X3YO type compounds  (1)
  • Inorganic Chemistry  (1)
  • 1975-1979  (2)
  • 1940-1944  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Ab initio studies on several species of the formula X3YO and X3YOH (1978)
    Springer
    Theoretical chemistry accounts 47 (1978), S. 39-50 
    Details
    ISSN: 1432-2234
    Keywords: Electronic structure of X3YO type compounds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Ab initio molecular orbital calculations using both minimal and extended basis sets have been applied to two isoelectronic sets of molecules. One set corresponds to the 18 electron species H3NO, H3CO− and H3COH while the second set contains the 42 electron fluorinated molecules F3NO, F3CO− and F3COH. The geometries of these molecules have been optimized, using both the minimal STO-3G and the extended 4-31G basis sets. These comparative calculations reveal that the 4-31G basis produced structural parameters in much better agreement with experiment. The effect of includingd-orbitals in the basis set was also investigated. For the fluorinated oxides it has been found that the optimized 4-31G structures were only slightly altered by the addition ofd-orbitals. For H3NO, on the other hand, the inclusion ofd-orbitals considerably shortens the N-O bond distance. Both H3NO and CF3OH, which are unknown experimentally, are theoretically predicted to be capable of existence. The electronic structures of these molecules have also been examined using electronic partitioning according to the Mulliken scheme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00554695
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  • 2
    Electronic Resource
    Electronic Resource
    Verhalten des Vitamins B1 beim Kochen und Konservieren von Gemüsen (1940)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 53 (1940), S. 123-125 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19400531104
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  • 3
    Electronic Resource
    Electronic Resource
    Beitrag zur Analyse von Fettsäureamid-Verbindungen Ein Verfahren zur Bestimmung des Fettsäure- und Basenanteiles (Amid-Zahl) (1943)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 56 (1943), S. 202-204 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19430562903
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  • 4
    Electronic Resource
    Electronic Resource
    Cyclopentadienylidene, XV. Cyclohepta[c]pyrrol-6(2H)-thion, ein stabiles Tropothion (1979)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 2087-2094 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cyclopentadienylidenes, XV. Cyclohepta[c]pyrrole-6(2H)-thione, a Stable TropothioneCyclohepta[c]pyrrole-6(2H)-thiones (5) are synthesized in two ways from cyclohepta[c]pyrrole-6[2H]-ones (2). The thiones are characterized by reaction with methyl iodide, 9-diazo-1,8-diaza-fluorene (8), and diphenyldiazomethane (11), respectively. Dipole moments of 2 and 5 are reported, spectroscopic data of 5 and of some reaction products are discussed.
    Notes: Cyclohepta[c]pyrrol-6(2H)-one (2) lassen sich nach zwei Methoden in stabile Thioanaloge 5 überführen, die chemisch als Methoiodide 6 und durch Reaktion mit 9-Diazo-1,8-diazafluoren (8) bzw. Diphenyldiazomethan (11) charakterisiert werden können. Dipolmomente von 2 und 5 werden mitgeteilt, spektroskopische Daten von 5 und deren Folgeprodukte diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19791120619
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