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Issue 10, 2014
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Rhodium diphosphine complexes: a case study for catalyst activation and deactivation

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Abstract

The present work provides an overview of possible activation and deactivation phenomena in homogeneous catalytic processes promoted by different types of rhodium complexes containing diphosphine ligands. While awaiting more efficient 1st row metal-based catalysts, a more economic and greener approach to the use of expensive catalysts based on precious metals requires an in-depth knowledge of both the reaction mechanism and the activation and deactivation phenomena which may reduce the temporary solution concentration of the metal effectively available for catalysis. The present work provides in particular a quantitative description of activation and deactivation phenomena such as generation of active species from suitable precatalysts (induction periods); catalyst deactivation due to formation of non-reactive, monomeric species with either the solvent, the substrate, the product or additives; and catalyst aggregation to usually non-reactive multinuclear complexes. Some critical remarks concerning the often applied ‘in situ’ procedure for ‘catalyst’ generation are also included.

Graphical abstract: Rhodium diphosphine complexes: a case study for catalyst activation and deactivation

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Publication details

The article was received on 16 Apr 2014, accepted on 08 May 2014 and first published on 16 May 2014


Article type: Minireview
DOI: 10.1039/C4CY00497C
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Citation: Catal. Sci. Technol., 2014,4, 3409-3425

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    Rhodium diphosphine complexes: a case study for catalyst activation and deactivation

    A. Meißner, E. Alberico, H. Drexler, W. Baumann and D. Heller, Catal. Sci. Technol., 2014, 4, 3409
    DOI: 10.1039/C4CY00497C

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