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  • 1
    Electronic Resource
    Electronic Resource
    Isotope shift and hyperfine structure in the iridium I spectrum (1989)
    Springer
    The European physical journal 14 (1989), S. 9-15 
    Details
    ISSN: 1434-6079
    Keywords: 31.30.Gs ; 35.10.Fk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotopic shift (IS) and hyperfine structure (hfs) measurements were performed in 15 lines to the ground configurations (5d+6s)9 of iridium. In a parametric description according to Bauche and Champeau accurate IS parameters were determined, and together with the IS parameters of 5 other 5d-elements, systematic trends could be noticed. The hfs analysis (with the help of the effective operator method of Sandars and Beck) yielded reliable radial integrals which permit a comparison with data from various self consistent methods. From the IS parameters and the hfs parametera s an accurate value for the nuclear parameter λ=0.044(4) fm2 could be derived.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401337
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  • 2
    Electronic Resource
    Electronic Resource
    Isotope shift and hyperfine structure of stable platinum isotopes (1987)
    Springer
    The European physical journal 7 (1987), S. 193-201 
    Details
    ISSN: 1434-6079
    Keywords: 31.30.Gs ; 35.10.Fk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope shift (IS) and hyperfine structure (hfs) measurements have been performed on seven lines of the platinum I spectrum with interference as well as laser fluorescence spectroscopy. In the latter case a frequency-doubled single-mode cw dye laser was applied. The IS of190Pt with a natural abundance of only 0.01% was determined to beδν 190, 192=−38.65(8) mK in theλ306.47 nm transition. The IS parameters and the effective hfs integrals in the configuration (5d+6s)10 were determined in intermediate coupling by a least squares fit of the IS and hfs data with eigenvectors obtained from the platinum fine structure (fs). The results are compared with theoretical values and yield improvedδ〈r 2〉 data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01384588
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  • 3
    Electronic Resource
    Electronic Resource
    Studien zur Chemie der Paraffine und Paraffingatsche. V. Synthese und physikalische Eigenschaften einiger 4n-Propyl- und 2-Methyl-3-isopropyl-Alkane mit mehr als 10 C-Atomen (1959)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 9 (1959), S. 275-288 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es werden die wichtigsten Synthesen verzweigtkettiger Alkane hinsichtlich Ausbeute und Reinheit der Endprodukte diskutiert. Am geeignetsten wurde für die Synthese der 4n-propyl- und 2-Methyl-3-isopropyl-Alkane die GRIGNARD-Reaktion gefunden.Von den dargestellten verzweigtkettigen Alkanen wurden Dichte, Brechungsindex, Oberflächenspannung, Kochpunkt, % C und % H bestimmt, Molvolumen, Molrefraktion und Parachor berechnet. Weiterhin wurden IR-Spektrogramme aufgenommen und die Fähigkeit der Adduktbildung mit Harnstoff untersucht.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19590090508
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Konstitution von Demecolcin (Substanz F) aus Colchicum autumnale L. Substanzen der Herbstzeitlose und ihre Derivate 35. Mitteilung (1953)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 36 (1953), S. 1319-1324 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Als neue Bezeichnung für die Substanz F aus Herbstzeitlosen wird der Trivialname Demecolcin vorgeschlagen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19530360613
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Die Glykoside der Samen von Dregea volubilis (L.) Benth. ex Hook. Glykoside und Aglykone, 131. Mitteilung (1954)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 37 (1954), S. 721-754 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Samen von Dregea volubilis (L.) Benth ex Hook. erwiesen sich als recht glykosidreich, doch stiess die Isolierung reiner Stoffe auf Schwierigkeiten. Durch Verteilung zwischen Wasser und organischen Lösungsmitteln, teilweise unter Verwendung des Reagens T von Girard & Sandulesco sowie durch Chromatographie an Al2O3 liessen sich vier verschiedene Glykosidpräparate erhalten, die als „Drevoside A, B, C und D“ bezeichnet wurden. Alle vier Präparate waren aber amorph und nicht einheitlich. Das Gemisch zeigte bei der biologischen Prüfung keine digitalisartige Wirkung, auch das gereinigte „Drevosid A“ war unwirksam.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19540370311
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Beitrag zur Synthese von Tetracenchinonen (1967)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 50 (1967), S. 2497-2500 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,4-Dihydroxyanthraquinones are transformed into the corresponding chlorohydroxy-ana-anthraquinone dienophiles, which are subjected to Diels-Alder addition with 1,3-dienes. The adducts formed are dehydrogenated to known and to new hydroxynaphthacene quinones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19670500835
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  • 7
    Electronic Resource
    Electronic Resource
    Farbstoffe aus Naphtazarin-1,3-Dien-Addukten (1968)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 51 (1968), S. 592-597 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The amination and oxidation of naphthazarin-diene adducts leads to known and to new anthraquinone and tricyclic naphthazarin dyestuffs and their intermediates. The new products allow extension of the hitherto known (especially green) color range of dyes. The mechanism of the reaction is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19680510328
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