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  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamic Properties of Neon Adsorbed on Titanium Dioxide1 (1955)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 77 (1955), S. 2168-2171 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01613a037
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  • 2
    Electronic Resource
    Electronic Resource
    The Determination of Heats of Adsorption by the Brunauer—Emmett—Teller Single Isotherm Method (1950)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 72 (1950), S. 5605-5607 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01168a068
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  • 3
    Electronic Resource
    Electronic Resource
    Age Measurements on a Pegmatitic Mica from the Rhodesian Shield (1955)
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 464-464 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Subsamples from the three zones, after the rejection of a few outer sheets, were weighed and dissolved in hydrofluoric acid and perchloric acid and made up as standard solutions of 100 c.c. in approximately 3 N hydrochloric acid. The concentrations of rubidium-87 and radiogenic strontium-87 were ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/175464a0
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  • 4
    Electronic Resource
    Electronic Resource
    Aminochlorsilane und ihre Umsetzung mit Ammoniak und Methylamin (1965)
    Springer
    Monatshefte für Chemie 96 (1965), S. 1889-1894 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Monoalkylamino-and dialkylaminodimethylchlorosilanes are easily formed by reaction of dimethyldichlorosilane with the double of primary or secondary amines. They are very hygroscopic. The monoalkylaminoderivatives tend to selfdecomposition. The reaction with methylamine leads as expected to dialkylamino-methylamino-dimethylsilanes, whereas ammonia splits off the alkylamino as well as the dialkylamino groups and gives cyclosilazanes.
    Notes: Zusammenfassung Monoalkylamino-und Dialkylamino-dimethylchlorsilane bilden sich leicht durch Umsetzung von Dimethylchlorsilan mit der doppelten Menge an primären oder sekundären Aminen. Sie sind sehr hydrolyseempfindlich. Die Monoalkylaminoderivate neigen zur Selbstzersetzung. Während die Reaktion der Dialkylaminoderivate mit Methylamin glatt zu Dialkylamino-methylamino-dimethylsilanen führt, spaltet Ammoniak die Alkylaminobzw. Dialkylaminogruppe unter gleichzeitiger Bildung von Cyclosilazanen ab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01185912
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  • 5
    Electronic Resource
    Electronic Resource
    Mono- und Bis-[(di)alkylamino-dimethylsilyl]-amine (1965)
    Springer
    Monatshefte für Chemie 96 (1965), S. 1916-1924 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Dialkylaminodimethylchlorosilanes react with sodium amide mainly to dialkylamino-dimethylsilyl-amines, besides to the free dialkylamine and cyclo- and polysilazanes. Bis(alkylamino)-dimethylsilanes can be isolated from the reaction of alkylaminodimethylchlorosilanes with NaNH2. Dialkylaminodimethylsilanes are formed likewise in the reaction of alkylaminophenoxydimethylsilanes with NaNH2. The analogous reaction of alkylaminophenoxydimethylsilanes leads on the other hand to 1,3-bis(alkylamino)-tetramethyldisilazanes.
    Notes: Zusammenfassung Dialkylamino-dimethyl-chlorsilane setzen sich mit NaNH2 vorwiegend zu Dialkylamino-dimethylsilyl-aminen, daneben zu freiem Dialkylamin und Cyclo- wie Polysilazanen um. Aus der Reaktion der Alkylamino-dimethyl-chlorsilane mit NaNH2 ließen sich nur die Bis-[alkylamino]-dimethylsilane isolieren. Dialkylamino-dimethylsilylamine bilden sich auch bei der Umsetzung von Dialkylamino-phenoxy-dimethylsilanen mit NaNH2. Die analoge Umsetzung der Alkylamino-phenoxy-dimethylsilane führt dagegen zu 1,3-Bis-[alkylamino]-tetramethyldisilazanen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01185916
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  • 6
    Electronic Resource
    Electronic Resource
    Age of a Pilansberg Dyke of Palæomagnetic Significance (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1330-1331 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The dykes are mainly of very fine-grained basic rock and as such are unsatisfactory for age-determination, but in the Robinson Dyke (Gough's Dyke C) a centre felspathic zone with development of biotite occurs. This dyke was sampled at levels No. 61 and 62 in the Robinson Deep Mine. These levels are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1811330b0
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  • 7
    Electronic Resource
    Electronic Resource
    Die Selbstkondensation der Alkylaminodimethylchlorsilane (1965)
    Springer
    Monatshefte für Chemie 96 (1965), S. 1895-1901 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Alkylaminodimethylchlorosilanes with small alkyl groups decompose at once, with bigger groups by slightly elevated temperatures generally according reactions 1 and 2, giving alkylammoniumchloride, 1,3-dichloro-tetramethyldisilazanes and 1-chloro-3-alkylamino-tetramethyldisilazanes (Table 1). The Cl atoms of the disilazanes may be exchanged by amino groups. Ammonia reacts with dichlorodisilazanes forming cyclotetrasilazanes.
    Notes: Zusammenfassung Alkylaminodimethylchlorsilane mit kleinen Alkylgruppen zersetzen sich direkt, mit größeren nach geringem Erwärmen, im wesentlichen nach Reaktionen 1 und 2 zu Alkylammoniumchlorid, 1,3-Dichlortetramethyldisilazanen und 1-Chlor-3-alkylamino-tetramethyldisilazanen (Tab. 1). Die Cl-Atome dieser Disilazane können weiter gegen Aminogruppen ausgetauscht werden. Ammoniak führt die Dichlordisilazane in Cyclotetrasilazane über.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01185913
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  • 8
    Electronic Resource
    Electronic Resource
    Einige Reaktionen von Phenoxy-amino-silanen mit Alkaliamiden (1968)
    Springer
    Monatshefte für Chemie 99 (1968), S. 1372-1375 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Zusammenfassung Es werden einige weitere Austauschreaktionen von Phenoxygegen Aminogruppen am Si-Atom mit Hilfe von (substitutierten) Alkaliamiden beschrieben. Sie sind in den Gl. (1) bis (7) niedergelegt. Dabei wird nur eine Phenoyxygruppe pro Molekül ausgetauscht, selbst bei Anwesenheit mehrerer Phenoxysilylgruppen und Anwendung eines größeren Alkaliamidüberschusses. The substitution of phenoxy by amino groups by means of alkali amides according equations (1)–(7) was feasible. However, even with several phenoxysilyl groups per molecule and an excess of alkali amide it was not possible to replace more than one phenoxy group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902681
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  • 9
    Electronic Resource
    Electronic Resource
    Zur Umsetzung von metallierten (Di)Alkylaminosilylaminen mit Chlorsilanen (1968)
    Springer
    Monatshefte für Chemie 99 (1968), S. 1376-1382 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Na- and Li-metallated (di)alkylaminodimethylsilylamines react according to equations (1)–(12) with ClSi(CH3)3, ClSi(CH3)2Cl or ClSi(CH3)2N(C2H5)2, to give the dialkylamino and chloro substituted disilazanes (I–IV) and tris(silyl)amines (V–VI). A review is given of all reaction steps of alkylamino or phenoxy substituted silylamines described earlier and in detail in the authors papers 51 to 55 and 73 to 74 on Si−N compounds.
    Notes: Zusammenfassung Na- und Li-metallierte Dialkylaminodimethylsilylamine reagieren mit ClSi(CH3)3, ClSi(CH3)2Cl oder ClSi(CH3)2N(C2H5)2, wie aus den Gl. (1) bis (12) ersichtlich, zu in 1-oder auch in 1- und 3-Stellung dialkylamino- und chlorsubstituierten Disilazanen (I bis IV) bzw. zu den Tris(silyl)aminen V und VI. — Ein Über-blick orientiert über sämtliche Reaktionsschritte alkylamino-oder phenoxysubstituierter Silylamine, wie sie in unseren Mitteilungen über SiN-Verbindungen 51 bis 55 und 73 bis 74 aus-führlich beschrieben sind.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902682
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  • 10
    Electronic Resource
    Electronic Resource
    Einige neue Hydrazinosilane (1965)
    Springer
    Monatshefte für Chemie 96 (1965), S. 1902-1908 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract A series of novel hydrazinosilanes, e. g. the bis(hydrazino) dimethylsilanes I and II, the amino-hydrazino-dimethylsilanes III–V, the bis(hydrazino)disilane VI with (+ 3)valent Si and (−2)valent N and the trialkoxysilylhydrazines VII and VIII, were prepared as shown in the reactions (1) to (6) and characterized by their physical properties.
    Notes: Zusammenfassung Eine Reihe neuartiger Hydrazinosilane, wie die Bis-(hydrazino)-dimethylsilane I und II, die Amino-hydrazino-dimethylsilane III–V, das Bis-(hydrazino)-disilan VI mit (+ 3)wertigem Si und (−2)wertigem N und die Trialkoxysilylhydrazine VII und VIII, wurden, wie in den Reaktionen (1) bis (6) beschrieben, dargestellt und in ihren physikalischen Eigenschaften charakterisiert.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01185914
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