This thesis consists of six chapters. Chapter 1 reviews the development of organometallic chemistry and the bonding and symmetry features dealt with in later chapters.
Chapter two deals with the treatment of /ram'-NiF(C5F3RN)(PEt3)2, where R =F or H, with a variety of (CH^SiX compounds (X = N3, NCO or C=CSi(CH3)3), which resulted in the formation of complexes in which the activated fluorine atom was replaced; yielding ira«s-NiN3(CsF3RN)(PEt3)2, ira«5-NiNCO(C5F3HN)(PEt3)2 and irara-NiC=CSi(CH3)3(C5F3HN)(PEt3)2. The trifluoropyridylazide complex, trans- NiN3(C5F3HN)(PEt3)2, is reactive, forming the metal isocyanate complex, trans- NiNCO(C5F3HN)(PEt3)2 upon reaction with CO. Attempts were made to effect reductive elimination of the Ni(PEt3)2 fragment and form fluoropyridines substituted at the 2-position with the functionalities, N3, NCO and CsCSi(CH3)3.
Previous studies have shown that (ri5-C5F[5)(ri5-C4H4N)Fe has an extensive photochemistry that is dominated by haptotropic shi...