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

Meißner, Antje and Alberico, Elisabetta and Drexler, Hans-Joachim and Baumann, Wolfgang and Heller, Detlef (2014) Rhodium diphosphine complexes: a case study for catalyst activation and deactivation. Catalysis Science & Technology, Vol. 4 (10), p. 3409-3425. ISSN 2044-4753. Article.

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DOI: 10.1039/C4CY00497C

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.

Item Type:Article
ID Code:10137
Status:Published
Refereed:Yes
Uncontrolled Keywords:Rhodium, catalytic processes, diphosphine ligands
Subjects:Area 03 - Scienze chimiche > CHIM/06 Chimica organica
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di chimica biomolecolare, Sassari
Publisher:Royal Society of Chemistry
ISSN:2044-4753
Deposited On:10 Oct 2014 12:51

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