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Title: m-terphenyl ligands in transition metal chemistry
Author: Gridley, Benjamin Michael
Awarding Body: University of Nottingham
Current Institution: University of Nottingham
Date of Award: 2013
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Over the last two decades, the implementation of sterically demanding, bowl-shaped l11-terphenyl molecules as ligands in organometallic chemistry has facilitated the synthesis of novel coordination complexes due to their ability to kinetically stabilise electronically and coordinatively unsaturated, highly reactive metal centres. Although early studies were primarily concerned with the main group metals, in recent years focus has shifted somewhat to the utilisation of these ligands with transition metals, following a number of high-profile advances including most notably the isolation of the first formally quintuple bond between two metal centres in 2005. Despite the recent successes afforded by l11-terphenyls in fundamental p and dblock chemistry, their utilisation in concert with transition metals is still in its infancy, evidenced by a paucity of examples in the literature. In order to address this shortage and explore both the structural and chemical propetties of such species, the work discussed herein documents the synthetic utilisation of 2,6-Ar2C6H3 - (AI' = Mes, l -Naph) in the stabilisation of a series of disubstituted d-block bis(m-terphenyl) compounds, in addition to a number of heteroleptic, monosubstituted complexes. The homoleptic two-coordinate Zn(II) complex (2,6-Naph2C6H3)2Zn (6) and the three-coordinate T-shaped (2,6-Naph2C6H3)2M(OEt2) (M = Cd, 7; Hg, 8) comprise the first crystallographically verified Group 12 bis(l11-terphenyl) series, with only one such mercury bis(l11-terphenyl) complex having previously been reported.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available