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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 500 (1983), S. 40-50 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Phosphorus Compounds with Adamantane Structure. X. Solvolysis of Phosphorus(III/V) OxidesThe phosphorus(III/V) oxides of adamantan-like structure have been prepared by oxydation of phosphorus or of phosphorus trioxide with oxygen and characterized by analysis in water solution and by 31P n.m.r. spectroscopy. Paper chromatographic and n.m.r. studies show that the alcoholysis of the phosphorus(III/V) oxides leads to tri-, di-, and monoesters of phosphorous acid and also to mono-, di-, and cyclotriphosphoric acid, in dependence on their PIII and PV contents. Nucleophilic attack by the alcohol takes place not statistically but in principle on the PIII atoms of the phosphorus(III/V) oxide molecule and their primary degradation products. In analogy to the alcoholysis the hydrolysis of the phosphorus(III/V) oxides yields phosphorous acid, mono-, di-, and cyclotriphosphoric acid. The mechanism of degradation is discussed.
    Notes: Die adamantanartigen Phosphor(III/V)-oxid-Moleküle P4O7, P4O8 und P4O9 wurden durch Oxydation von Phosphor oder Phosphor(III)-oxid mit Sauerstoff hergestellt und durch naßchemische Analyse und 31P-NMR-charakterisiert. Die Alkoholyse der Phosphor(III/V)-oxide führt, wie papierchromatographische und 31P-NMR-Untersuchungen ergaben, in Abhängigkeit vom PIII-und PV-Gehalt der Moleküle zu Tri-, Di- und Monoestern der phosphorigen Säure sowie zu Mono-, Di- und Cyclotriphosphorsäure (Gl. (2), (3), (4)). Der nucleophile Angriff des Alkohols erfolgt nicht statistisch, sondern prinzipiell an den PIII-Atomen der Phosphor(III/V)-oxid-Moleküle und ihrer primären Abbauprodukte. Die Hydrolyse der Phosphor(III/V)-oxide verläuft analog der Alkoholyse zu phosphoriger Säure, Mono-, Di- und Cyclotriphosphorsäure. Der Abbaumechanismus wird diskutiert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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