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  • Chemistry  (2)
  • 1970-1974  (2)
  • 1972  (2)
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  • 1970-1974  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 393 (1972), S. 23-38 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: RAMAN and IR-spectroscopic investigation of alkyl derivatives of arsenic acid. I. Vibrational spectra of some alkali metal alkanearsonatesThe RAMAN and IR spectra of Lim, Na and K methanearsonate and those of Na and K ethanearsonate (some of them being in the hydrated form) are communicated group. For the latter, symmetry C3v is established, with the degenerate and the symmetric AsO3 valence frequencies lying in direct neighbourhood and being resolved only in the solid state spectra. Li—O valence modes are observed at about 500cm-1.
    Notes: Es werden die RAMAN- und IR-Spektren des Lithium-, Natriumund Kaliummethanarsonates sowie die des Natrium- und Kaliumäthanarsonates (zum Teil mit Kristallwasser) mitgeteilt und diskutiert. Die Spektren zeigen kaum Kopplung zwischen Alkyl- und AsO3-Gruppe, so daß beide getrennt behandelt warden können. Für die AsO3-Gruppe ergibt sich die Symmetire C3v, wobei jedoch entartete und symmetrische AsO3-Valenzfrequenz sehr dicht beieinander liegen, so daß sie nur im festen Zustand sichtbar gemacht werden können. Im Lithiumsalz werden Frequenzen um 500 cm-1 beobachtet, die als O…Li—O-Valenzchwingungen gedeutet werden müssen (Elektronenmangeleffekt).
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 393 (1972), S. 39-49 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: RAMAN and IR spectroscopic investigation of alkyl derivatives of arsenic acid. II. Vibrational spectra of some alkanearsonic acid dialkylestersRAMAN and IR spectra of CH3AsO(OCH3)2, CH3AsO(OC2H5)2, C2H5AsO(OCH3)2, and C2H5AsO(OC2H5)2, are communicated and discussed. Their skeleton CAsO(OC)2 has very probably Cs symmetry.
    Notes: Es warden die RAMAN-und IR-Spektren von CH3AsO(OCH3)2, CH3AsO(OC2H5)2, C2H5AsO(OCH3)2, und C2H5AsO(OC2H5)2, in Substanz mitgeteilt und diskutiert. Für das Gerüst CAsO(OC)2 ergibt sich mit sehr großer Wahrscheinlichkeit die Symmetrie Cs.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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