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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 285-298 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Nitrosolates and Nitrosolatocompounds. III. Synthesis and Structures of Nitrosolate Derivatives of Organosubstituted Compounds of Antimony(V(, Tellurium(IV), and Iodine(III)In solution the derivatives of the nitrosolates of acetic and benzoic acids and of the ions (C6H5)4Sb+, (CH3),Sb+, (C6H5)3Te+, and the derivative of the nitrosolate of acetic acid and of the ion C12H8I+ show ionic or covalent structures, depending on the polarity of the solvent. In the solid state only the derivatives of (C12H5)4Sb+ unequivocally do not display salt character. The structure of (C6H5)4Sb · O2N2C-CH3 was determined by X-ray methods. The compound consists of separated molecules with slightly distorted trigonal-bipyramidonal environment of the antimony atom. The nitrosolato ligand is oxygen bonded to one of the apical positions. According to the electronic spectra of the solutions of the nitrosolate derivatives the nitrosolate ions react in the covalent forms either as uni-dentate ligands with O-coordination or as bidentate chelating or bridging ligands with O,O′-coordination.
    Notes: Die Acet- und Benznitrosolsäurederivate der Ionen (C6H5)4Sb+, (CH3)4Sb+, (C6H5)3Te+ und das Acetnitrosolsäurederivat des Ions C12H8J+ zeigen in Lösung je nach Polarität des Lösungsmittels ionische oder kovalente Strukturen. Im festen Zustand besitzen nur die Derivate von (C6H5),Sb+ eindeutig keinen Salzcharakter. Die Struktur von (C6H5)4Sb · O2N2C-CH3 wurde röntgenographisch bestimmt. Die Verbindung besteht aus diskreten Molekeln mit leicht verzerrter trigonal-bipyramidaler Umgebung des Antimon-atoms. Der Nitrosolatoligand besetzt eine der axialen Positionen und ist über Sauerstoff gebunden. Kach Aussage der Elektronenspektren der Lösungen der Nitrosolsäurederivate fungieren die Nitrosolationen in den kovalenten Formen entweder als einzähnige Liganden rnit O-Koordination oder als zweizähnige Chelat- bzw. Brückenliganden mit O, O′-Koordination.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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