The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium

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dc.contributor.advisorMoss, John Ren_ZA
dc.contributor.authorGafoor, Mansoor Ahmeden_ZA
dc.date.accessioned2016-03-28T14:43:57Z
dc.date.available2016-03-28T14:43:57Z
dc.date.issued1991en_ZA
dc.description.abstractWe have reviewed the synthesis and properties of ethylene-bridged dinuclear transition metal complexes. The ethylene-bridged ruthenium complex [CpRu(CO)₂]₂[μ-(CH₂CH₂)] has been prepared. The characterization data (IR, ¹H and ¹³C NMR, and Mass spectral) and properties of this complex are discussed. The crystal structure of this complex has also been determined. The reactivity of this complex with donor ligands (CO, PMe₂Ph and PPh₃), protic acids (CF₃COOH and HCl), bromine, MeOH and with oxidants (Ph₃CPF₆ and AgBF₄) has been investigated. The new ruthenium complexes [{CpRu(CO)₂}₂{μ-(CnH₂n₋₁)}]PF₆ (n = 3 or 5), as well as their known iron analogues have been prepared. The crystal structures of [{CpM(CO)₂}₂{μ-(C₃H₅)}]PF₆ (M = Fe or Ru) have been determined. The fluxional behaviour of the complex [{CpRu(CO)₂}₂{μ-(C₃H₅)}]PF₆ has also been determined and discussed in comparison with the analogous iron complexes. A sequence of reactions of [CpM(CO)₂]₂[μ-(CH₂)₅] (M = Fe or Ru) with Ph₃CPF₆, CF₃COOH and NaI has been shown to give high yields of 1-pentene; the relevance of this reaction sequence is discussed. The synthesis and properties of the known ruthenium ethyl complex [CpRu(CO)₂(CH₂CH₃)] are compared with [CpRu(CO)₂]₂[μ-(CH₂CH₂)]. The synthesis, characterization and properties of the ruthenium haloalkyl complexes [CpRu(CO)₂{(CH₂)nX}] (n = 3, X= Cl, Br or I; n = 4 or 5, X= Br or I) are also described.en_ZA
dc.identifier.apacitationGafoor, M. A. (1991). <i>The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Chemistry. Retrieved from http://hdl.handle.net/11427/18335en_ZA
dc.identifier.chicagocitationGafoor, Mansoor Ahmed. <i>"The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Chemistry, 1991. http://hdl.handle.net/11427/18335en_ZA
dc.identifier.citationGafoor, M. 1991. The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Gafoor, Mansoor Ahmed AB - We have reviewed the synthesis and properties of ethylene-bridged dinuclear transition metal complexes. The ethylene-bridged ruthenium complex [CpRu(CO)₂]₂[μ-(CH₂CH₂)] has been prepared. The characterization data (IR, ¹H and ¹³C NMR, and Mass spectral) and properties of this complex are discussed. The crystal structure of this complex has also been determined. The reactivity of this complex with donor ligands (CO, PMe₂Ph and PPh₃), protic acids (CF₃COOH and HCl), bromine, MeOH and with oxidants (Ph₃CPF₆ and AgBF₄) has been investigated. The new ruthenium complexes [{CpRu(CO)₂}₂{μ-(CnH₂n₋₁)}]PF₆ (n = 3 or 5), as well as their known iron analogues have been prepared. The crystal structures of [{CpM(CO)₂}₂{μ-(C₃H₅)}]PF₆ (M = Fe or Ru) have been determined. The fluxional behaviour of the complex [{CpRu(CO)₂}₂{μ-(C₃H₅)}]PF₆ has also been determined and discussed in comparison with the analogous iron complexes. A sequence of reactions of [CpM(CO)₂]₂[μ-(CH₂)₅] (M = Fe or Ru) with Ph₃CPF₆, CF₃COOH and NaI has been shown to give high yields of 1-pentene; the relevance of this reaction sequence is discussed. The synthesis and properties of the known ruthenium ethyl complex [CpRu(CO)₂(CH₂CH₃)] are compared with [CpRu(CO)₂]₂[μ-(CH₂CH₂)]. The synthesis, characterization and properties of the ruthenium haloalkyl complexes [CpRu(CO)₂{(CH₂)nX}] (n = 3, X= Cl, Br or I; n = 4 or 5, X= Br or I) are also described. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium TI - The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium UR - http://hdl.handle.net/11427/18335 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/18335
dc.identifier.vancouvercitationGafoor MA. The synthesis and reactivity of some hydrocarbyl complexes of iron and ruthenium. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Chemistry, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18335en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemistryen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemistryen_ZA
dc.titleThe synthesis and reactivity of some hydrocarbyl complexes of iron and rutheniumen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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