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Synthesis, characterization, and reactivity of iron(II) sandwich complexes.

dc.contributor.authorSturge, Kevin Craig.en_US
dc.contributor.degreePh.D.en_US
dc.date.accessioned2014-10-21T12:34:41Z
dc.date.available1991
dc.date.issued1991en_US
dc.descriptionReactions of ((arene)$\sb2$Fe) $\sp{2+}$ dications with carbanion sources AlR$\sb3$, RLi, and RMgX have been investigated. In reactions with AlR$\sb3$ (R = Me, Et) in CH$\sb2$X$\sb2$ (X = Cl, Br), monocationic ((arene) (cyclohexadienyl)Fe) $\sp+$ complexes are produced where the cyclohexadienyl ligand is derived from single net Et$\sp-$ (AlEt$\sb3$) or CH$\sb2$X$\sp-$ (AlMe$\sb3$) addition to an arene ring. Reactions with alkyllithium or Grignard reagents yield ((cyclohexadienyl)$\sb2$Fe) complexes for arene = benzene, p-xylene, or mesitylene; and ((arene) (cyclohexadienyl)Fe) $\sp+$ complexes for arene = pentamethylbenzene or hexamethylbenzene.en_US
dc.descriptionMixed-arene iron dications of the general formula ((arene) (arene$\sp\prime$)Fe) $\sp{2+}$ have been synthesized and their reactivity towards carbanions and borohydride has been investigated. This investigation has revealed that there is a preference for addition at the less substituted arene ligand. These results are rationalized as occurring via a single electron transfer process rather than a nucleophilic mechanism.en_US
dc.descriptionFinally, X-ray crystallographic characterization of a number of the aforementioned compounds with previously reported structures has allowed an analysis of Fe(II) sandwich complexes containing cyclopentadienyl, cyclohexadienyl, pentadienyl, and arene ligands. This analysis ranks the four ligands with respect to their ability to $\pi$-bond to iron as: arene $>$ cyclohexadienyl $\simeq$ pentadienyl $>$ cyclopentadienyl.en_US
dc.descriptionThesis (Ph.D.)--Dalhousie University (Canada), 1991.en_US
dc.identifier.otherAAINN64453en_US
dc.identifier.urihttp://hdl.handle.net/10222/55185
dc.languageengen_US
dc.publisherDalhousie Universityen_US
dc.publisheren_US
dc.subjectChemistry, Inorganic.en_US
dc.titleSynthesis, characterization, and reactivity of iron(II) sandwich complexes.en_US
dc.typetexten_US

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