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Title: Halogen bonding interlocked host systems for recognition and sensing of anions
Author: Mullaney, Benjamin R.
ISNI:       0000 0004 5366 1179
Awarding Body: University of Oxford
Current Institution: University of Oxford
Date of Award: 2014
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This thesis describes the synthesis of halogen bonding receptors for integration within interlocked anion host systems. Chapter 1 introduces the field of supramolecular chemistry, with a particular focus on anion recognition and sensing, halogen bonding, and the synthesis of mechanically interlocked structures. Chapter 2 describes the preparation and anion binding properties of carbazole-based receptor molecules. A systematic anion binding study on a series of halogen- and hydrogen-bonding 3,6-bis-triazolium carbazole acyclic receptors is described initially, followed by the development of a halogen bonding rotaxane. The anion and metal complexation properties of acyclic and macrocyclic systems incorporating the 1,8-bis-triazole carbazole motif are also presented. Chapter 3 details the synthesis and anion complexation investigations of halogen and hydrogen bonding naphthalene-based acyclic and interlocked rotaxane host molecules. Chapter 4 presents receptors based on the 4,4'-bis-triazole-2,2'-bipyridyl motif. A halogen bonding rhenium(I) bipyridyl complex is exploited in the development of a rotaxane host system which optically senses anions via luminescence purely through halogen bonding interactions. The anion recognition and sensing properties of diquat-based receptors are also investigated, and shown to exhibit optical and electrochemical responses to anions. Chapter 5 summarises the major conclusions from Chapters 2-4. Chapter 6 describes the experimental procedures used in the work, and includes characterisation data for the synthesised compounds. Supplementary information relating to crystallographic data, and absorption, luminescence and electrochemical studies, is provided in the Appendices.
Supervisor: Beer, Paul D. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Physical Sciences ; Chemistry & allied sciences ; Inorganic chemistry ; Organic chemistry ; Supramolecular chemistry ; anion ; halogen bonding ; rotaxane