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  • 1
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Complexes of Cyclic π-Ligands, VCrystal and Molecular Structures of Bis(1-methoxyborinato)cobalt and Bis(1-methylborinato)cobaltThe structures of two derivatives of “borabenzene”, bis(1-methoxyborinato)cobalt (1) and bis(1-methylborinato)cobalt (2) have been solved by three-dimensional X-ray diffraction analyses (R1 = 0.044 for 1 and R1 = 0.038 for 2). Both molecules are centrosymmetric. The nearly planar rings are parallel to each other and form sandwich type complexes with the metal atoms. Within the limits of error the distances are identical for the two ring systems and indicate a certain degree of cyclic conjugation for the ligands.
    Notes: Die Strukturen von zwei “Borabenzol”-Derivaten, Bis(1-methoxyborinato)kobalt (1) und Bis(1-methylborinato)kobalt (2) konnten durch dreidimensionale Röntgenbeugungsanalysen aufgeklärt werden (R1 = 0.044 für 1 und R1 = 0.038 für 2). Beide Moleküle sind zentrosymmetrisch gebaut. Die zueinander parallelen Ringe sind fast eben und bilden mit dem Metall Komplexe vom “Sandwich”-Typ. Die Atomabstände in den beiden Ringsystemen sind innerhalb der Fehlergrenzen gleich und deuten an, daß in den Liganden zu einem gewissen Grad cyclische Konjugation vorliegt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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