Properties of Complexes with Metal-Carbon a-Bonds

Properties of Complexes with Metal-Carbon a-Bonds 

The spectra of the complexes L M -R, containing a metal-carbon a-bond, usually consist of several distinguishable bands the major bands with high extinction coefficients in the UV region are LMCT bands, followed sometimes by bands with mixed characters and the d-d bands in the visible region with low extinction coefficients. The location of the maximum of the LMCT transition is naturally strongly affected by the nature of the substituents R and by the redox potential of the central ions. 

The spectra of chromium compounds (H20)5Cr -CR R R were studied intensively and the following conclusion were derived 104). 

Acid Dissociation Constants for Transient cx-Hydroxyalkyl Complexes 

Depending on the pH of the solution spectra composite of the relative amounts of acid and base form of the transient complex are observed after its formation and equilibration due to Eq. (16) and can thus be derived. 

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Formation of Transition Metal Complexes with Metal-Carbon a-Bonds Properties of Complexes with Metal-Carbon a-Bonds... 

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