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  • 11
    Electronic Resource
    Electronic Resource
    Decay channels of core excitation resonances in 3d and 4f metal atoms (1986)
    Springer
    The European physical journal 2 (1986), S. 347-362 
    Details
    ISSN: 1434-6079
    Keywords: 3280F
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Photoabsorption, photoelectron, and ejected electron spectra of atomic 3d metals and rare earths in the energy range of the strong 3p→3d and 4d→(4fεf) excitations are presented. TheZ-dependence of the strength, shape and decay channels of the giant resonances is discussed. With increasing Z for the 3d metals the 3p→3d resonances change from almost symmetric lines close to the 3p-ionization limits to broad asymmetric profiles centered well below the 3p-ionization threshold. Autoionization leading to the emission of a 3d electron dominates the decay. For lowZ rare earths the 4d→(4fεf) resonances mainly decay via the emission of a 4d electron whereas for higherZ the emission of a 4f electron takes over.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426239
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  • 12
    Electronic Resource
    Electronic Resource
    Die Adsorption von Chlorid an einem austenitischen Cr-Ni-Stahl bei hohen Temperaturen (1988)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 39 (1988), S. 355-364 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The adsorption of chloride on austenitic Cr-Ni-steel at high temperaturesUsing the radioactive isotope chlorine-36 and nuclear physical measuring methods (gas-flow radiation detector, autoradiography) chloride adsorbed on metal surfaces can be detected with a detection limit of 10-10 g cm-2 and a local resolution of at least 5 μm. This method was developed for investigating the chloride adsorption on the protective layers on an austenitic Cr-Ni-Steel (X 8 CrNiTi 18.10) under high temperature conditions at 250°C. Three different kinds of chloride adsorption could be distinguished: homogeneous chloride distribution across the whole surface, high localized chloride concentrations in places of local corrosion attack and local deposition of chloride by heat and mass transfer. The results obtained enabled attack concepts for the mechanism of action of the chloride were derived. Potential applications of this method to the rapid detection of chlorideinduced corrosion processes (pitting corrosion, stress corrosion cracking or crevice corrosion) or to the quantitative estimation of thermohydraulic concentration processes are mentioned.
    Notes: Durch Verwendung des radioaktiven Isotops Chlor-36 und kernphysikalischer Meßmethoden (Gasdurchflußzählrohr, Autoradiographie) kann an Stahloberflächen adsorbiertes Chlorid mit einer Nach-weisgrenze von 10-10 g/cm2 bei einem lokalen Auflösungsvermögen von mindestens 5 μm nachgewiesen werden. Diese Methode wurde benutzt, um die Chloridadsorption an den Schutzschichten eines austenitischen Cr-Ni-Stahls (X 8 CrNiTi 18 10) bei hohen Temperaturen (250°C) zu untersuchen. Dabei konnten drei unterschiedliche Arten der Chloridadsorption festgestellt werden: gleichmäßig flächenhafter Belag, hohe, örtlich begrenzte Chloridkonzentration an Stellen des lokalen Korrosionsangriffs und lokale Anreicherung von Chlorid durch Wärme- und Stofftransportvorgänge. Aus den Ergebnissen wurden Vorstellungen zum Wirkmechanismus des Chlorids abgeleitet. Auf die Anwendungsmöglichkeiten der Methode zum schnellen Nachweis eines chloridinduzierten Korrosionsprozesses (Lochfraß-, Spannungsriß- oder Spaltkorrosion) bzw. zur quantitativen Bewertung von thermohydraulischen Anreicherungsprozessen wird hingewiesen.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19880390802
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  • 13
    Electronic Resource
    Electronic Resource
    Verbesserte calorimetrische Heizwertbestimmung flüssiger Brennstoffe in Platingefäßchen (1938)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 51 (1938), S. 146-147 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19380511004
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  • 14
    Electronic Resource
    Electronic Resource
    Verbesserungsvorschläge für die Elementarbestimmung von flüssigen Treibstoffen nach der Halbmikromethode (1938)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 51 (1938), S. 147-148 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19380511005
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  • 15
    Electronic Resource
    Electronic Resource
    Zinkoxyd als Katalysator (1935)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 223 (1935), S. 49-83 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurde die Lumineszenzfähigkeit und die katalytische Wirksamkeit mit Bezug auf den Methanolzerfall von verschieden hergestellten Zinkoxyden untersucht. Je nachdem, ob man das Zinkoxyd durch thermische Zersetzung von Nitrat oder Carbonat gewinnt, erhält man Produkte von extrem anderen Eigenschaften.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19352230107
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  • 16
    Electronic Resource
    Electronic Resource
    Über aromatische Derivate der Orthoschwefligsäure (1918)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 416 (1918), S. 291-304 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19184160213
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  • 17
    Electronic Resource
    Electronic Resource
    Reaktionen mit N-Acylimino-dithiokohlensäurediestern (1980)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 322 (1980), S. 55-68 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reactions with N-Acylimino-dithiocarbonic-acid-diesters.Reactions of N-acylimino-dithiocarbonic-acid-S,S-diesters 1 with nucleophilic com-pounds present new possibilities to synthesize heterocycles. With amines 1a reacts by mono- and disubstitution, respectively, of methylthio-groups to isothioureas 2 and guanidines 3, with 1,2-bi-nucleophilic arenes to benzoheterocycles 4, with aliphatic diamines to imidazolidines 5, pyrimidines 6, diazepines 7 and the hexamethylene-diamine-derivatives 8. 1a reacts also with hydrazines to 1,2,4-triazoles 9 and with hydrazides to the thiosemicarbazones 10 or 1,3,4-oxadiazoles 11. Heterocyclisations of 1 with guanidines, thiourea, salts of thiourea and amidines give the 1,3,5-triazines 12, 14, 15 and 16. N-benzoyl-dithiocarbonic-acid-methylester -amid reacts with CH-acidic compounds to thiazoles 17. The structures of the final products are determined by i.r.-, 1H-n.m.r.-, u.v.- and mass-spectras.
    Additional Material: 9 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19803220109
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  • 18
    Electronic Resource
    Electronic Resource
    Eine neue Synthese des Cinnamoyliminodithiokohlensäure-S,S-dimethylesters und Umsetzungen mit Nucleophilen (1980)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 322 (1980), S. 434-444 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: New Synthesis of Dimethyl-cinnamoylimino-dithiocarboxylate and Reactions with NucleophilesA new general synthesis of dimethyl-cinnamoylimino-dithiocarboxylate 1d is possible by reaction of 4-nitro-cinnamoylamide with carbon disulfide in the presence of sodium hydride and following alkylation. With the unsubstituted dimethyl-cinnamoylimino-dithiocarboxylate 10 is in-vestigated the reaction behavior with nucleophilic compounds. The treatment of 1c with primary amines, respectively, by mono- and disubstitution of the methylthio groups yields isothiourea 2 or guanidines 3. Benzocondensed heterocycles are formed by reaction of 1c with o-bifunctional nucleo-philes.The compounds 5, 6 and 7 have been synthesized from 1c with cysteamine, p-phenylenediamine and ethylenediamine.The oxadiazole 8 and isothiosemicarbazide 9 are obtained by reaction of the dithioester 1c with hydrazides. On the other hand cyclisation to the 1,2,4-triazole 11 over the intermediate 10 and to the 1,3,5-triazine 12 are possible.The reaction of 1c with carbanions in a basic medium affords acrylic derivatives 13.In the same way we isolated by reaction of dithioester 1c with a benzothiazolium salt the dark coloured compound 14. The physical properties of synthesized compounds are discussed by mass-, 1H-n.m.r.-, i.r.- and u.v.-spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19803220314
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  • 19
    Electronic Resource
    Electronic Resource
    Über Oxonium - hydrosulfide des p-Benzochinons (1910)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 43 (1910), S. 3599-3603 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191004303155
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  • 20
    Electronic Resource
    Electronic Resource
    Die Konstitution der chinhydronartigen Verbindungen (1910)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 43 (1910), S. 3603-3611 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191004303156
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