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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Hydroxylamido(1-)-O,N Complexes of Molybdenum(VI) Containing Terminal Oxo, Sulfido, and Selenido Ligands. Crystal Structures of [MoO2(C5H10NO)2] and of [MoS2(C5H10NO)2]Molecular complexes of cis-dioxo-bis(hydroxylamido(1-)-O,N)molybdenum(VI) containing O,N-coordinated, N,N-substituted hydroxylamine ligands react with H2S in toluene substituting one or both terminal oxo groups yielding cis-oxosulfido- and cis-disulfido-bis (hydroxylamido(1-)-O,N) molybdenum complexes, respectively. With H2Se the corresponding cis-oxoselenido complexes are formed. The crystal structures of the two title compounds containing piperidine-N-oxide as ligands are described: The cis-disulfido complex crystallizes tetragonal in the space group D2d11 - I 4 2 m with four formula units per unit cell; the corresponding cis-dioxo complex crystallizes orthorhombic (D24 - P 212121; Z = 4). The 1H - nmr spectra and the UV-visible absorption spectra are reported.
    Notes: Die Neutralkomplexe cis-Dioxo-bis(hydroxylamido(1-)-O, N)molybdän(VI) mit O,N-koordinierten, N,N-substituierten Hydroxylamin-Liganden reagieren mit H2S in Toluol unter Substitution einer oder beider terminaler Oxo-Gruppen zu cis-Oxosulfido- bzw. cis-Disulfido-bis(hydroxylamido(1-)-O, N)molybdän(VI)-Komplexen; mit H2Se entstehen die entsprechenden cis-Oxoselenido-Komplexe. Die Kristallstrukturen der Titelverbindungen mit Piperidin-N-oxid als Ligand werden beschrieben: Der cis-Disulfido-Komplex kristallisiert tetragonal in der Raumgruppe D2d11 - I 4 2 m mit vier Formeleinheiten i. d. Elementarzelle; die analoge cis-Dioxo-Verbindung kristallisiert orthorhombisch (D24 - P212121) mit 4 FE i. d. EZ. Die 1H - NMR-Spektren sowie die Lichtabsorptionsspektren werden mitgeteilt.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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