The synthesis, characterization and reactivity of some mononuclear hydrocarbyl compounds of iron
| dc.contributor.advisor | Mapolie, S.F. | |
| dc.contributor.author | Joorst, Genevieve | |
| dc.date.accessioned | 2023-06-12T10:26:13Z | |
| dc.date.accessioned | 2024-05-09T10:51:19Z | |
| dc.date.available | 2023-06-12T10:26:13Z | |
| dc.date.available | 2024-05-09T10:51:19Z | |
| dc.date.issued | 1997 | |
| dc.description | >Magister Scientiae - MSc | en_US |
| dc.description.abstract | Mononuclear hydrocarbyl compounds of the type LnM(CH2)nCH:CH2 (L"M : Cp*Fe(CO)2 and CpFe(CO)2, n: 2-4,6), Cp(CO)zFe(CH2)nOH (n : 4-6,8) and Cp*(CO)2Fe(CH2)+OH have been synthesized. All these compounds have been l3 fully characterized using analytical techniques such as[R, H and C NMR spectroscopy, microanalysis and mass spectrometry The results of some activity studies on the above hydrocarbyl compounds are reported in this thesis. For example, the reactivity of the r'1l-alkenyl compounds Cp (CO)2Fe(CH2).CH=CHZ (n: 2 and 3) to hydrozirconation was studied. Although the expected binuclear hydrocarbyl compounds Cp(CO)2Fe(CH2)na2Zr(Cl)Cpz (n: 2 and 3) were not isolated, their presence in solution were detected by carrying out insitu reactions. The n1-alkenyl compounds were also subjected to a p-hydride abstraction reaction. This afforded a series of cationic n2-diene compounds with general formula {Cp(CO)zFe(CnH2n-2) } PF6. Some of the reactions of the w-hydroxyalkyls were also investigated. The bromination of these hydroxy species leads to the formation of w-bromoalkyls of the type Cp(CO)2Fe(CH2)'Br (n 4 and 8). The w-hydroxyalkyls cp(co)2Fe(CH2)nOH (n : 4-6,8) were reacted with trifluoroacetic acid which results in iron-carbon cleavage. Finally the reaction of some w-hydroxyalkyls with triflic anhydride gives different results depending on the type of solvent employed. In THF a metal containing polyether is isolated as the major product, while in diethyl ether the major species isolated is a o-chloroalkyl of the type Cp(Co)2Fe(CH2)nCl (n : 4 and 5)' In the case of the reaction in THF, a small amount of the binuclear hydrocarbyl compound [CpFe(Co)z]{p-(CHz)a}can be isolated if [CpFe(Co)z] is added to the reaction mixture | en_US |
| dc.identifier.uri | https://hdl.handle.net/10566/14595 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of the Western Cape | en_US |
| dc.rights.holder | University of the Western Cape | en_US |
| dc.subject | Gel permeatation chromatography | en_US |
| dc.subject | Mononuclear hydrocarbyl compounds | en_US |
| dc.subject | Nuclear magnetic resonance | en_US |
| dc.subject | Inductive coupled Plasma | en_US |
| dc.subject | Tetrahydrofuran | en_US |
| dc.title | The synthesis, characterization and reactivity of some mononuclear hydrocarbyl compounds of iron | en_US |