Synthesis and characterization of nickel, palladium and chromium complexes as olefin oligomerization catalysts

New N-functionalized 2-phosphinobenzaldimino (P^N) ligands (L) bearing 3-picolyl (41), furfuryl (42), thiophene-2-methyl (43), thiophene-2-ethyl (44), and benzyl (45) groups have been prepared in good yield. In addition, 2-iminopyridyl (N^N) (46), 2-bromobenzaldimino (47), and 2-phenoxyimino (O^N) (48) ligands and precursors, bearing furfuryl groups, were prepared in good yield. The amino analogues of 47 and 48 were obtained by reduction of the imine bonds using sodium borohydride. All compounds were fully characterized using spectroscopic and analytical techniques, including melting point, ¹H, ¹³C, and ³¹P NMR, IR spectroscopy, MS, and elemental analysis. These ligands (L) were reacted with appropriate metal precursors to give the corresponding metal complexes of the type PdLMeCl (51 – 55), PdLCl₂ (56 – 63), NiLBr₂ (75 – 82), and CrL(THF)Cl₃ (83 – 88).

Grantor dc:publisher.institution

Department of Chemistry

Year dc:date.issued

2009

Author dc:creator

• Mogorosi, Moses Mokgolela

Advisors dc:contributor.advisor

• Moss, John R
• Smith, Gregory S

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/6337

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/6337