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Title: New palladium complexes containing organoselenium ligands
Author: Ford, S.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 2000
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The aim of the work contained within this thesis was to investigate the reactions of bicyclic 1,2,3-selenadiazoles and their diselenin derivatives with Pd (0) phosphine complexes. Chapter one is a review of previous research on organoselenium ligands that have been shown to bond to palladium and platinum. It also summaries other relevant chemistry of the ligands under investigation. Chapter two describes the reactions between a variety of palladium trialkylphosphine complexes, and cycloalkeno-1,2,3-selenadiazoles. It includes the first analysis by x-ray crystallography of a simple uncoordinated bicyclic 1,2,3-selenadiazole, and full characterisation of all the products obtained. Chapter three describes the reactions between tetrakis(triphenylphosphine)palladium and both cycloalkeno-1,2,3-selenadiazoles and their diselenin derivatives. Also included in this section is a new method for the preparation of bis(cycloalkeno)-1,4-diselenins. Chapter four looks at the reaction between the palladium starting materials used in chapter two, and bis(cycloalkeno)-1, 4-diselenins. The products obtained are fully characterised, and further research into their chemistry is documented in chapter five. Here, they are shown to undergo bridge cleavage reactions with both monodentate and bidentate phosphine ligands. This chapter also includes the direct synthesis of palladium diselenolenes containing 1,2-bis(diphenylphosphino)ethane. Experimental details concerning the synthesis of all complexes, both products and starting materials, used in this study are contained in the final chapter six.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available