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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 1419-1430 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Complex Chemistry of Four-Centre π-Systems, VI. The „π-Back Bonding“: Reduction Potentials of (1.4-Diheterobutadiene)molybdenum Tri- and DicarbonylsTo describe the metal-ligand π-bonding situation in a simple two-function model the polarographic reduction potentials of (diheterobutadiene)(DHB)phosphinemolybdenum tricarbonyls B and corresponding DHB-bis(phosphine)molybdenum dicarbonyls C are given and compared with the results for free DHB ligands and their tetracarbonyl complexes A. Moreover substituent effects are discussed and the strong influence of lone-pair s̰-coordination on the orthogonal π-system is demonstrated.
    Notes: Zur Beschreibung der Metall-Ligand-π-Bindungsverhältnisse im Rahmen eines Zwei-Funktionen-Modells werden die polarographischen Reduktionspotentiale von Diheterobutadien-(DHB)-phosphin-molybdän-tricarbonylen B und entsprechenden Bis(phosphin)-molybdändicarbonylen C bestimmt und mit den Werten der freien DHB-Liganden und ihrer Molybdäntetracarbonylkomplexe A verglichen. Außerdem werden Substituenteneffekte diskutiert und der starke Einfluß der s̰-Koordination freier Elektronenpaare auf das orthogonale π-System aufgezeigt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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