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  • 1955-1959  (12)
  • 1930-1934  (4)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 215 (1933), S. 33-43 
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 300 (1959), S. 225-228 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: An abbreviated nomenclature is proposed for acids of phosphorus with lower oxydation number.
    Notes: Es wird eine abgekürzte Bezeichnungsweise für Phosphorsäuren niederer Oxydationszahl vorgeschlagen.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 300 (1959), S. 237-249 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Red phosphorus suspended in alkali hydroxyde solutions reacts with hypohalogenites under formation of salts of an acid \documentclass{article}\pagestyle{empty}\begin{document}${\rm (- P -)}_{\rm 6}$\end{document}. The oxidation number of phosphorus in this compound is 3+. The phosphorus atoms are linked together by P - P bonds. The compound has a ring structure.
    Notes: In Alkalihydroxydlösungen suspendierter roter Phosphor reagiert mit Hypohalogeniten unter Bildung von Salzen einer \documentclass{article}\pagestyle{empty}\begin{document}${\rm (- P -)}_{\rm 6}$\end{document}-Ringsäure. Die Oxydationszahl des Phosphors in der Verbindung ist 3+; die Phosphoratome sind über P - P-Bindungen miteinander verknüpft. Die Verbindung hat Ringstruktur.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The preparation of salts of an acid of phosphorus in which 3 phosphorus atoms are linked together in a straight chain is described. The acid is prepared from oxidates of the acid \documentclass{article}\pagestyle{empty}\begin{document}${\rm (} - \mathop {\rm P}\limits^{\rm 3} -)_6$\end{document}, from oxidates of red phosphorus and from hydrolyzates of phosphorus tribromide.
    Notes: Die Herstellung von Salzen einer Säure des Phosphors, in der 3 Phosphor-Atome linear miteinander verbunden sind, aus Oxydaten der \documentclass{article}\pagestyle{empty}\begin{document}${\rm (} - \mathop {\rm P}\limits^{\rm 3} -)_6$\end{document}-Ringsäure, aus Oxydaten des roten Phosphors und aus Hydrolysaten des Phosphortribromids wird beschrieben.
    Additional Material: 3 Ill.
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  • 5
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid is stable even towards 80% alkali hydroxide at 200°C. It is transformed to orthophosphate in molten anhydrous alkali hydroxide. The \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 2} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid is also very stable towards alkali hydroxide. Under rigorous conditions it is oxidized to \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid with yields up to 85% of theory under formation of hydrogen. High yields of \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid can also be obtained by reacting iodine with \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 2} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid in mineral acid solution. Copper catalyzed oxidation of \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-acid by hypobromite in alkaline solution leads to mixtures of ortho- and pyrophosphate.
    Notes: Die \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure ist sogar gegen 80proz. Alkalihydroxyd bei 200°C beständig, erst schmelzendes wasserfreies Alkalihydroxyd verwandelt zu Orthophosphat. Auch die \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 2} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure ist gegen Alkalihydroxyd sehr beständig; bei verschärften Bedingungen wird sie mit Ausbeuten bis zu 85% unter Wasserstoffentwicklung zur \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure oxydiert. Auch bei der Einwirkung von Jod auf die \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 2} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure in mineralsaurer Lösung können hohe Ausbeuten der \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure erhalten werden. Die durch Kupfer katalysierte Oxydation der \documentclass{article}\pagestyle{empty}\begin{document}$\mathop {\rm P}\limits^{\rm 4} {\rm - }\mathop {\rm P}\limits^{\rm 4}$\end{document}-Säure in alkalischer Lösung durch Hypobromit führt zu Gemischen von Ortho- und Pyrophosphat.
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The preparation of salts of an acid of phosphorus with the formula H4P2O6 and the structure \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document} is described. This acid is isomeric with hypophosphoric acid, which has the structure \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}. Both acids can be hydrolyzed to one mol orthophosphoric acid and one mol phosphorous acid. Salts of the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document}-acid can be prepared e.g. by phosphorylation of orthophosphate with phosphorus trichloride or by reaction of phosphite with phosphorus oxychloride. Dehydrated mixtures of phosphorous acid and orthophosphoric acid can also be used for the preparation. The properties of the two isomers are markedly different. In the literature the name isohypophosphoric acid has been used for the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document}-acid.
    Notes: Es wurden Salze einer Säure des Phosphors isoliert, die die gleiche Bruttozusammensetzung H4P2O6 wie die \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-Säure hat und deren Hydrolyse ebenfalls 1 Mol phosphorige Säure und 1 Mol Orthophosphorsäure liefert. Sie hat die Struktur \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document}. Mehrere Bildungsweisen werden beschrieben. Die \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document}-Säure kann unter anderem durch Phosphorylierung von Phosphit mit Phosphoroxychlorid, oder durch Phosphorylierung von Orthophosphat mit Phosphortrichlorid hergestellt werden. Sie ist ferner aus Entwässerungsgemischen von phosphoriger Säure und Orthophosphorsäure erhältlich. Sie ist durch ihre Eigenschaften scharf von der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-Säure unterschieden. In der Zeitschriften- und Buchliteratur wurde diese Säure Isounterphosphorsäure genannt. Wir wählen hier die Bezeichnung \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 5} $\end{document}-Säure.
    Additional Material: 3 Ill.
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation methods are described of salts of the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 5} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}-acid which is the anhydride between orthophosphoric and \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-acid. The compound can be obtained by oxidation of the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 3}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}-, the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 5} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}-, and the (\documentclass{article}\pagestyle{empty}\begin{document}$ {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,} $\end{document})6-acid by phosphorylyation of the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-acid.
    Notes: Es werden verschiedene Darstellungsmethoden von Sahen der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 5} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}-Säure, die das Anhydrid zwischen Orthophosphorsäure und der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-Säure ist, beschrieben. Die Verbindung kann durch Oxydation der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 3}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}-, der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,O\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4}\,{\!-\!-}\,\mathop {\rm P}\limits^{\rm 4} $\end{document}- und der (\documentclass{article}\pagestyle{empty}\begin{document}$ {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 3} {\rm\,{\!-\!-}\,} $\end{document})6- Ringsäure erhalten werden und durch Phosphorylierung der \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop {\rm P}\limits^{\rm 4} {\rm\,{\!-\!-}\,}\mathop {\rm P}\limits^{\rm 4} $\end{document}-Säure.
    Additional Material: 3 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 64 (1931), S. 614-619 
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Tab.
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 64 (1931), S. 2286-2289 
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
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  • 10
    Publication Date: 1933-11-10
    Print ISSN: 0863-1786
    Topics: Chemistry and Pharmacology
    Published by Wiley
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