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  • Chemistry  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 560 (1988), S. 147-152 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Perfluoroalkyl Tellurium Compounds: Investigations of the Preparation of [(CF3)2TeX]+ Cations and [(CF3)2TeX2+n]n- Anions (X = F, Cl, Br)The reactions of (CF3)2TeF2 with BF3, AsF5 and SbF5 yield the new complex compounds [(CF3)2TeF][BF4] and [(CF3)2TeF][EF6], respectively, while during the reactions of (CF3)2TeX2 (X = Cl, Br) with halide acceptors only decompositions take place. (CF3)2TeX2 form with MX (X = F, Cl; M = K, Rb, Cs, Me4N, Ag) the isolable salts of the composition M[(CF3)2TeX3]. M[(CF3)2TeBr3] is only detected in solution besides decomposition products. No evidence for the formation of hexa-coordinated tellurates(IV) M2[(CF3)2TeX4] is found.
    Notes: (CF3)2TeF2 reagiert mit BF3, AsF5 und SbF5 zu [(CF3)2TeF][BF4] bzw. [(CF3)2TeF][EF6], während die Reaktionen von (CF3)2TeX2 (X = Cl, Br) mit Halogenidionen-Akzeptoren nur Zersetzungsprodukte liefern. Aus den Umsetzungen von (CF3)2TeX2 mit MX (X = F, Cl; M = K, Rb, Cs, Me4N, Ag) werden die Salze der Zusammensetzung M[(CF3)2TeX3] isoliert, M[(CF3)2TeBr3] wird nur in Lösung neben Zersetzungsprodukten erhalten. Die Bildung hexakoordinierter Tellurate M2[(CF3)2TeX4] kann in keinem Fall nachgewiesen werden.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 576 (1989), 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: Reaction of (CH3)2 Te with CF3I: Preparation and Properties of [(CH3)2TeCF3]IThe irradiation of a mixture of (CH3)2 Te and CF3I at low temperature yields [(CH3)2TeCF3]I. From the thermal decomposition as well as in polar solvents CH3TeCF3 and CH3I are formed. Attempts to prepare bis- or tris(trifluoromethyl)tellurium compounds from these reactions failed. [(CH3)2TeCF3]I reacts with salts or acids to form many new derivatives of the composition [(CH3)2TeCF3]X (X = Cl, NO3, 1/2 SO4, OCOCH3, OCOCF3, B(C6H5)4, OC6H2(NO2)[3].
    Notes: Bei tiefer Temperatur unter Bestrahlung reagieren (CH3)2Te und CF3I zu [(CH3)2 TeCF3]I, das bei der thermischen Zersetzung oder in polaren Lösungsmitteln zu CH3TeCF3 und CH3I zerfällt. Die Bildung von Bis- bzw. Tris(trifluormethyl)tellur-Verbindungen gelingt bei diesen Reaktionen nicht. Durch Umsetzung von [(CH3)2TeCF3]I mit Salzen oder Säuren werden zahlreiche neue Derivate der Form [(CH3)2TeCF3]X synthetisiert X = Cl, NO3, 1/2 SO4, OCOCH3, OCOCF3, B(C6H5)4, OC6H2(NO2)3).
    Type of Medium: Electronic Resource
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