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  • 1985-1989  (2)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 567 (1988), 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: Fluoro Substituted and other New CarbodiphosphoranesSyntheses and properties of the carbodiphosphoranes [(CH3)2N]3P=C=P(CH3)[N(CH3) 2]2, (3), [(CH3)2N]2(F)P=C=P(F) [N(CH3)2]2, (7), and (C6H5)2(F)P=C=P(F)(C6H5) 2, (11), are discribed. The compounds 3, 7, and 11 as well as [(C2H5)2N]3P=C=P(CH3) [(C2H5)2N]2 are characterized by their 1H, 13C, 19F, and 31P n.m.r. and mass spectra. The crystal and molecular structures of 7 are reported.
    Notes: Synthese und Eigenschaften der Carbodiphosphorane [(CH3)2N]3P=C=P(CH3)[N(CH3)2]2, (3), [(CH3)2N]2(F)P=C=P(F)[N(CH3)2]2, (7), und (C6H5)2(F)P=C=P(F)(C6H5) 2, (11), werden beschrieben. Die Verbindungen 3, 7 und 11 sowie [(C2H5)2N]3P=C= P(CH3)[(C2H5)2N]2 sind durch ihre 1H-, 13C-, 19F- und 31P-NMR-Spektren sowie durch ihre Massenspektren charakterisiert. Die Kristall- und Molekülstruktur von 7 werden mitgeteilt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 552 (1987), S. 147-154 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phosphorus(III) Thiohalides: Sd=P—F and S=P—Br. Mass Spectrometric InvestigationsThe compounds S=P—F and S=P—Br are formed by reaction of P(S)FBr2 and P(S)Br3, respectively, with silver at temperatures of about 800 K. S=P—Br is also formed by pyrolysis of P(S)Br3 at temperatures above 298 K. Mass spectrometric equilibrium measurements lead to the heat of formation of S=P—F: ΔH°298(SPFg) = -260.8 kJ/mol.
    Notes: Die Homologen der Thiazylhalogenide, S=P—F und S=P—Br, entstehen bei ber Reduktion von P(S)FBr2 bzw. P(S)Br3 mit elementarem Silber bei Temperaturen um 800 K. Zu S=P—Br gelangt man ebenfalls durch Thermolyse von P(S)Br3 bei Temperaturen wenig oberhalb Zimmertemperatur. Aus massenspektrometrischen Untersuchungen der Gleichgewichtslage wurde für S=P—F eine Bildungsenthalpie von -260,8 kJ/mol abgeleitet.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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