Heteroleptic dirhodium (II,II) complexes: synthesis, spectroscopy and applications in hydroformylation and hydroaminomethylation catalytic reactions

The synthesis of a series of bis-substituted heteroleptic dirhodium(II,II) complexes containing bridging acetate and chelating bipyridyl ligands is herein described. The protons at the 4- and 4'- positions of the bipyridyl ligands on the model complex 1 were substituted by either the electron withdrawing CF3 (complex 2) or electron donating OMe (complex 3) groups, to observe the electronic influence on the metal complexes. As such, electroanalysis using cyclic voltammetry indicated variations in the metal-centred redox processes for the title complexes. The complexes obtained were used as pre-catalysts for the hydroformylation and hydroaminomethylation of olefins, an unprecedented homogenous catalysis system.

Grantor dc:publisher.institution

Department of Chemistry

Year dc:date.issued

2024

Author dc:creator

• de Doncker, Stephen George

Advisors dc:contributor.advisor

• Ngubane, Siyabonga
• Smith, Gregory S

• Chemistry

Handle dc:identifier.uri

http://hdl.handle.net/11427/40864

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/40864