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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 540 (1986), S. 307-318 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure Investigations of Some Biureto(thio) phosphatesThe oxidation of ammonium biuretodithiophosphate 1 (NH4 - BDP) results the ammonium biuretomonothiophosphate hydrate 2 (NH4 - BMP · H2O) and the ammonium biuretooxophosphate 3 (NH4 - BOP). In a more convenient way 2 can be obtained by the reaction of 1 with methyl chloroacetate in aqueous NH4HCO3.The sodium and potassium salts or their hydrates are prepared from the ammonium salt via the free biureto(thio)phosphoric acids. The hydrates K - BDP · H2O, NH4 - BMP · H2O, Na - BMP · 2 H2O, and K - BMP · H2O, respectively, can be Dehydrated without decomposition of the cyclic anion.The results of crystal structure investigations of K - BDP · H2O, K - BMP · H2O and NH4 - BOP are reported. The two potassium salts are closely related in their structures.
    Notes: Bei der Oxydation von Ammonium-biuretodithiophosphat 1 (NH4 - BDP) entstehen Ammonium-biuretomonothiophosphat-Hydrat 2 (NH4 - BMP · H2O) und Ammonium-biuretooxophosphat 3 (NH4 - BOP). Die Darstellung Von 2 gelingt einfacher durch Hydrolyse des Biuretothiophosphoryl-mercaptoessigsäuremethylesters in wäßriger NH4HCO3-Lösung. Aus den Ammoniumsalzen werden die Natrium- und Kaliumverbindungen bzw. deren Hydrate über die freien Säuren hergestellt. Die Hydrate K - BDP · H2O, NH4 - BMP · H2O, Na - BMP · 2 H2O und K - BMP · H2O lassen sich ohne Zersetzung des cyclischen Anions entwässern.Die Ergebnisse der Kristallstrukturuntersuchungen an K - BDP · H2O, K - BMP · H2O und NH4 - BOP werden vorgestellt. Die beiden Kaliumsalze erweisen sich als eng verwandt in ihrer Struktur.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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