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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 577 (1989), S. 223-228 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Neutral-Komplexe von Wolframoxidtetrafluorid mit HydrazinderivatenDer Anfangszustand der Reaktion der Hydrazin- und Hydrazon-Komplexbildung mit Wolframoxidtetrafluorid ist mit NMR untersucht worden. Komplexe vom Typ [WOF4L] (L = CH3NHNHCH3, (CH3)2NNHCH3, C2H5(CH3)NN(CH3)C2H5, C2H5(CH3)NNHCH3, PhCH3NN(CH3)2, CH3RNN=C(CH3)2 R = CH3, C2H5, Ph) wurden untersucht. Die Komplexe bilden pentagonale Bipyramiden mit beiden Stickstoffatomen in η2-Koordination mit den organischen Substituenten in der äquatorialen Ebene. Isomerie der Neutralkomplexe wurde auf Grund der unterschiedlichen Stellung der Substituenten am koordinierten Hydrazin (Hydrazon) gefunden. Ein Einfluß der Stellung der Substituenten auf die relative Stabilität der Isomeren wurde gefunden.
    Notes: The initial stage of the reaction of hydrazines and hydrazones complex formation with tungsten oxotetrafluoride has been investigated by n.m.r. Neutral complexes of the [WOF4L] type (L = CH3NHNHCH3, (CH3)2NNHCH3, C2H5(CH3)NN(CH3)C2H5, C2H5(CH3)NNHCH3, PhCH3NN(CH3)2, CH3RNN=C(CH3)2 R = CH3, C2H5, Ph) have been investigated. The complexes are pentagonal bipyramids with both nitrogen atoms of η2-coordination with the organic ligands in the equatorial plane. Isomerism of neutral complexes has been found which is due to different orientations of substituents of coordinated hydrazine (hydrazone). An influence of the orientation of substituents to the relative stability of the isomers has been found.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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