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  • Inorganic Chemistry  (5)
  • 1970-1974  (5)
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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studies on Dialkyl Metal Phosphoric and Phosphinic Acid Derivatives of the Elements Aluminium, Gallium, Indium, and Thallium, III. The Vibrational Spectra of the Hypophosphites and Dimethyl ThiophosphinatesThe vibrational spectra (IR and RAMAN) of the dimethylmetal hypophosphites (CH3)2MOOPH2 and the dimethylmetal dimethylthiophosphinates (CH3)2MOSP(CH3)2 of the elements aluminium, gallium, and indium are assigned and discussed. A new spinning RAMAN cell is described.
    Notes: Die Schwingungsspektren (IR und RAMAN) der Dimethylmetall- hypophosphite, (CH3)2MOOPH2, und der Dimethylmetalldimethylthiophosphinate, (CH3)2MOSP(CH3)2, der Elemente Aluminium, Gallium und Indium werden zugeordnet und diskutiert. Außerdem wird eine neue, rotierende RAMAN-Probenhalterung beschrieben.
    Additional Material: 1 Ill.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 391 (1972), S. 97-106 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkyl gallium and dialkyl indium oxalatesThe trialkyls of gallium and indium react with oxalic acid in a 2:1 molar ratio. The products have the formula (RaM)2O4C2 with M = Ga, In and R = CH3 C2H5. The vibrational spectra (IR and RAMAN) point to nonplanar structures of D2 symmetry. Mass spectroscopic investigations are used for further determination of the structures.
    Notes: Die Trialkyle des Galliums und Indiums reagieren mit wasser-freier Oxalsäure im Verhältnis 2:1. Man erhält Produkte der Zusammensetzung (R2M)2O4C2 mit M = Ga, In und R = CH3, C2H5. Die Schwingungsspektren (IR und Raman) deuten auf nicht planare Strukturen der Symmetrie D2 hin. Massenspektroskopische Untersuchungen werden zur weiteren Strukturaufklärung herangezogen.
    Additional Material: 3 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 410 (1974), S. 156-164 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkyl Indium Mono- and Alkyl Indium Dihalides R2InX and RInX2 (with R = CH3, C2H5 and X = Cl, Br, I). I. The Crystal Structure of (CH3)2InClThe routes for preparing R2InX and RInX2 compounds are summarized, and the vibrational spectra (IR and Raman) are discussed. The crystal structure determination of (CH3)2InCl led to the following results: space group orthorhombic Cmcm, a = 14.107 Å, b = 6.123 Å, c = 5.897 Å and four formula units in the cell. The indium atom - in the center of a distorted octahedron - is surrounded by two carbon and four chlorine atoms, with distinctly different indium chlorine distances.
    Notes: Die Darstellungsmöglichkeiten der Verbindungen werden zusammenfassend beschrieben und ihre Schwingungsspektren (IR und Raman) diskutiert. Die Kristallstrukturbestimmung an (CH3)2InCl ergibt die orthorhombische Raumgruppe Cmcm mit a = 14,107 Å, b = 6,123 Å, c = 5,897 Å und vier Formeleinheiten pro Zelle. Indium ist in verzerrt oktaedrischer Umgebung von zwei Kohlenstoff- und vier Chloratomen (mit deutlich verschiedenen In—Cl-Abständen) koordiniert.
    Additional Material: 2 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 389 (1972), S. 247-253 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dicarbonyldiacetylbis(dimethylhydrazon)-nickel(O) forms ruby red crystals belonging to the orthorhombic apace group Pbca. The unit cell with lattice constants a = 17.91 Å, b = 10.34 Å and c = 14.90 Å contains eight molecules.PATTERSON and FOURIER maps followed by least-squares refinement yielded atomic parameters, the R-value being 11.7%.Each Ni atom is in the centre of a distorted tetrahedron built by 2 carbonyl groups and the bidentate ligand, which forms a five-membered ring (almost planar) with the central atom.
    Notes: Dicarbonyl-diacetylbis(dimethylhydrazon)-Nickel(O) bildet rhombische rubinrote Kristalle der Raumgruppe Pbca. Die Elementarzelle mit den Gitterkonstanten a = 17,91 Å, b = 10,34 Å und c = 14,90 Å enthält acht Moleküle. PATTERSON-und FOURIER-Synthesen sowie die Verfeinerung nach der Methode der kleinsten Fehlerquadrate ergaben die Atomlagen bei einem R-Wert von 11,7%. Jedes Ni-Atom ist verzerrt tetraedrisch von 2 Carbonylgruppen und dem zweizähnigen organischen Liganden umgeben, der mit dem Zentralatom einen fast ebenen Fünfring bildet.
    Additional Material: 3 Ill.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 398 (1973), S. 119-128 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dialkylindium Acetates R2InOOCCH3 (R = CH3, C2H5). Preparation, Properties, and Structure.Dimethyl- and diethylindium acetate were prepared and the vibrational spectra (IR and RAMAN) discussed. The X-ray structure determination shows that diethylindium acetate belongs to the orthorhombic space group Pnma. The unit cell with lattice constants a = 8.40, b = 7.41, c = 15.13 Å contains four molecules. Each indium atom forms with an acetate group a planar four-membered ring. The indium-oxygen distance within such a ring is only a little shorter than the distance of this oxygen to the indium of the next neighboured ring. Indium has therefore the coordination number six.
    Notes: Dimethyl- und Diäthylindium-acetat wurden dargestellt und schwingungsspektroskopisch (IR und R-RAMAN)untersucht. Die Röntgenstrukturanalyse von Diäthylindiumacetat zeigt, daß diese Verbindung in der orthorhombischen Raumgruppe Pnma kristallisiert. Die Elementarzelle mit den Gitterkonstanten a = 8,40 Å, b = 7,41 Å, c = 15,13 Å enthält vier Formeleinheiten. Indium bildet mit der Acetatgruppe einen ebenen Vierring. Der Indium - Sauerstoff-Abstand innerhalb eines solchen Vierrings ist aber nur wenig kürzer als der Abstand dieses Sauerstoffs zum Indium des nächst benachbarten Moleküls. Damit kommt dem Indium die Koordinationszahl 6 zu.
    Additional Material: 6 Tab.
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