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  • 1970-1974  (21)
  • 1965-1969  (21)
  • 1920-1924  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Some Consequences of the Gravitational Deflexion of Light (1923)
    [s.l.] : Nature Publishing Group
    Nature 112 (1923), S. 471-472 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE results of the eclipse expeditions of 1919 and 1922 leave little doubt that the deflexion of 1.75″ predicted by Einstein for a ray of light passing close by the sun is a fact. Moreover, as a result of the experiments of Lebedew and Poynting, it is admitted generally that such a ray ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/112471a0
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  • 2
    Electronic Resource
    Electronic Resource
    Some Terrestrial Experiments on Gravitation and Einstein's Theory. (1922)
    [s.l.] : Nature Publishing Group
    Nature 109 (1922), S. 106-106 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE object of this letter is to direct the attention of writers on Einstein's theory of gravitation to some recent experiments on the terrestrial aspects of gravitation which seem to have been overlooked, although they appear to be of great importance for the purpose of forming a just estimate ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/109106b0
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  • 3
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    Andrée, Karl. Geologie des Meeresbodens (Book Review) (1921)
    Wiesbaden : Periodicals Archive Online (PAO)
    Geographische Zeitschrift. 27:11/12 (1921) 277 
    Details
    ISSN: 0016-7479
    Topics: Geography
    Notes: Bücherbesprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:h092-1921-027-11-000035
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  • 4
    Electronic Resource
    Electronic Resource
    Die Schwingungsspektren und das Reaktionsverhalten einiger halogensubstituierter Trimethyl-silane (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 343 (1966), S. 101-108 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The IR and RAMAN spectra of (CH3)2(CH2X)SiH [X = Cl, Br, J], (CH3)2(CHX2)SiH [X = Cl] and (CH3)(CH2X)2SiH [X = Cl] are reported, and the frequencies assigned. A simple relation exists between the frequence of the SiH stretching vibration and the rate constant of the bromination of the SiH bond.
    Notes: Für die Verbindungen (CH3)2(CH2X)SiH [X = Cl, Br, J], (CH3)2(CHX2)SiH [X = Cl] und (CH3)(CH2X)2SiH [X = Cl] werden die IR- und RAMAN-Spektren mitgeteilt und die Frequenzen zugeordnet. Es besteht eine einfache Beziehung zwischen der SiH-Valenzfrequenz und der Geschwindigkeitskonstante für die Bromierung der SiH-Bindung.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663430113
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  • 5
    Electronic Resource
    Electronic Resource
    Silane. VIII. Alkalische Solvolyse von meta-substituierten Aryl-silanen (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 351 (1967), S. 37-41 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The alkaline solvolysis of some meta-substituted aryl silanes in ethanol/water was investigated by kinetic methods. The specific rate constants demonstrate a great influence of substituents which can be interpreted by means of TAFTS σº constants.
    Notes: Die alkalische Solvolyse einiger meta-substituierter Aryl-silane in Äthanol/Wasser wurde kinetisch untersucht. Die spezifischen Geschwindigkeitskonstanten zeigen einen starken Substituenteneinfluß, der mit Hilfe der TAFTschen σº-Werte gedeutet werden kann.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673510106
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  • 6
    Electronic Resource
    Electronic Resource
    Über das Koordinationsverhalten von Silicium-oxalaten (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 352 (1967), S. 36-44 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: By reaction of SiCl4, CH3SiCl3 and C6H5SiCl3 with oxalie acid in solution of some ethers ((C2H5)2O, C4H8O2, C4H8O) substances of the compositions listed in “Inhaltsübersicht” are prepared.The interrelations between these different types of structure and their dependence on the nature of the participating ether are investigated.
    Notes: Durch Umsetzung von SiCl4, CH3SiCl3 und C6H5SiCl3 mit Oxalsäure in verschiedenen äthern ((C2H5)2O, C4H8O2, C4H8O) werden Produkte folgender Zusammensetzung dargestellt: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {[{\rm Si}({\rm C}_2 {\rm O}_4 {\rm H})_2 ({\rm C}_2 {\rm O}_4) \cdot 2\,\mathop {\rm A}\limits^{..}]_{\rm n}} \hfill & {(\mathop {\rm A}\limits^{..} = \mathop {\rm A}\limits^{..}\rm ther)} \hfill \\ {[{\rm RSi}({\rm C}_2 {\rm O}_4 {\rm H})({\rm C}_2 {\rm O}_4) \cdot \mathop {\rm A}\limits^{..}]_{\rm n}} \hfill & {} \hfill \\ {[{\rm Si}({\rm C}_2 {\rm O}_4)_2 \cdot 2\,\mathop {\rm A}\limits^{..}]_{\rm n}.} \hfill & {} \hfill \\\end{array} $$\end{document}Die Beziehungen der unterschiedlichen Strukturtypen und ihre Abhängigkeit von der Art des beteiligten äthers werden untersucht.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673520107
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  • 7
    Electronic Resource
    Electronic Resource
    Silanole. VIII. Beitrag zur Kenntnis der SiCl4-Hydrolyse in Diäthyläther (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 362 (1968), S. 80-86 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: In the reaction of SiCl4 with water or salt hydrates in diethyl ether an ether cleavage goes on parallel to the hydrolysis. Probably ether cleavage can be discussed as the reversal of the proton-catalysed equilibrium of ether formation from alcohol. In addition to various chlorosiloxanes, ethoxytrichlorosilane and higher-boiling ethoxychlorosiloxanes were obtained. Reports on the formation of trichlorosilanol and pentachlorodisiloxanol by these reactions could not be confirmed.
    Notes: Bei der Hydrolyse von SiCl4 in Diäthyläther mit Wasser oder Salzhydraten tritt Ätherspaltung auf, die wahrscheinlich im Sinne einer Umkehrung des protonenkatalysierten Gleichgewichts der Ätherbildung aus Alkohol gedeutet werden kann. Neben den verschiedenen Chlorsiloxanen ließen sich in den Hydrolysaten Äthoxytrichlorsilan und nicht näher definierte höhersiedende Äthoxychlorsiloxane nachweisen. Mitteilungen über die Bildung von Trichlorsilanol und Pentachlordisiloxanol bei diesen Reaktionen konnten nicht bestätigt werden.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683620113
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  • 8
    Electronic Resource
    Electronic Resource
    Chelat-Komplexe von Monoorgano-trihalogen-silanen mit β-Diketonen (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 383 (1971), S. 314-320 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of CH3-SiCl3, Cl-CH2-SiCl3 and C6H5-SiCl3 with several β-diketones (diket-H). listed above, give compounds of the type [RSi(diket)2]+X-. The same products result from CH3-SiFCl2. The Si-F-bond is split by the complex formation in each case.
    Notes: Reaktionen von CH3-SiCl3, Cl-CH2-SiCl3 und C6H5-SiCl3 mit den β-Diketonen (diket-H) Acetylaceton (aeac-H), Benzoylaceton (bac-H) und Dibenzoylmethan (dbm-H) ergaben Verbindungen des Typs [RSi(diket)2]+X-(X-=Cl-, HCl2-, FeCl4 SnCl5 und Pikrat). Die gleichen Produkte entstanden beim Einsatz von CH3-SiFCl2. Die Si-F-Bindung wurde bei der Komplex-Bildung in jedem Falle gespalten.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19713830312
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  • 9
    Electronic Resource
    Electronic Resource
    Silicium-Komplexe. VI. Oxalato-silicate und Oxalato-germanate (1972)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 391 (1972), S. 27-37 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Silicon complexes. VI. Oxalatosilicates and oxalatogermanatesBy reaction of SiCl4(GeCl4) or diaryldichloro silanes (germanes) with Ag2C2O4 and quartary ammonium or phosphonium iodides, compounds of the following formulas were prepared: These products are resistant towards hydrolysis and were characterized by IR-spectra, conductivity and thermal decomposition. The compounds resulting from reaction of monoorganitrichloro silanes nearly correspond to the formula \documentclass{article}\pagestyle{empty}\begin{document}$$ ({\rm R}_{\rm 4} {\rm E)[RSi(C}_{\rm 2} {\rm O}_{\rm 4})_2] $$\end{document} and are extremely sensitive towards hydrolysis.
    Notes: Durch Reaktion von SiCl4(GeCl4) oder Diaryldichlorsilanen (-germanen) mit Silberoxalat und quartären Ammonium- oder Phosphoniumjodiden wurden Verbindungen folgender Zusammensetzung dargestellt: Diese hydrolysebeständigen Produkte wurden durch IR-Absorptionsspektren, Leitfähigkeitsmessungen und thermischen Abbau charakterisiert.Die bei Umsetzungen der Monoorganotrichlorsilane erhaltenen Verbindungen entsprechen etwa der Formulierung (R4E)[RSi(C2O4)2] und sind extreme hydrolyseempfindlich.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19723910105
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  • 10
    Electronic Resource
    Electronic Resource
    Über die Stabilität von Bis(triorgano-silyl)-oxalaten (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 352 (1967), S. 45-52 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: By reaction of triorgano-chloro-silanes, (X—C6H4)3SiCl (X = H, CH3, F, Cl, Br), with oxalic acid we succeeded in preparing the bis(triorganosilyl)-oxalates (X—C6H4)3Si—C2O4—Si(C6H4—X)3 with X = H, CH3, Br. Their thermal stabilities were investigated and correlated to the effects of substituents.
    Notes: Durch Umsetzung von Triorgano-chlor-silanen (X—C6H4)3SiCl (X = H, CH3, F, Cl, Br) mit Oxalsäure gelang es, folgende Bis(triorgano-silyl)-oxalate (X—C6H4)3Si—C2O4—Si(C6H4—X)3 (X = H, CH3, Br) darzustellen. Ihre thermische Stabilität wurde untersucht und in Beziehung zu den Substituenten-Einflüssen gebracht.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673520108
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