Skip to main content
Article thumbnail
Location of Repository

Nano chemistry : large molecular capsules and coordination networks based on self-assembly

By Scott John Dalgarno

Abstract

This thesis focuses on the characterisation of supramolecular structures containing p-sulfonatocalix[\ud n]arenes (where n=4,5,6,8) with suitable guest molecules and lanthanide metal cations. The characterisation is based primarily on X-ray diffraction but high-resolution NMR\ud techniques have also been used to identify p-sulfonatocalix[4]arene/crown ether complexation in the solution phase. Notably, remarkable control can be achieved over the formation and geometries of nano-metre scale spheroids or tubules containing p-sulfonatocalix[4]arene via guest selection.\ud \ud Chapter 1 gives a short overview of supramolecular chemistry, molecular recognition and the history and synthesis of calixarenes. The supramolecular chemistry of the p-sulfonatocalx[n]tilarenes and a selection of interesting and recently reported nano-metre scale multi-component supramolecular architectures are also reviewed.\ud \ud Chapter 2 describes the pH dependent formation of a number of molecular capsule and bi-layer supramolecular architectures based on p-sulfonatocalix[4]arene, (di)aza-functionalised guest species and lanthanide metals.\ud \ud Chapter 3 describes the formation of several bi-layer structures based on p-sulfonatocalix[4]arene and lanthanide, metals. Incorporation of different lanthanide metal salts changed the resulting structures by either inclusion or exclusion of the anions in the supramolecular architectures.\ud \ud Chapter 4 describes a series of Diffusion Ordered Spectroscopy experiments that were performed in collaboration with Dr. Julie Fisher at the University of Leeds. The experiments were based on calixarene/crown ether systems and the results showed 1: 1 host-guest complexation in solution with a series of charged species.\ud \ud Chapter 5 describes the formation of Russian doll complexes and the design and control over nanometre scale spheroidal arrays composed of p-sulfonatocalix[4]arene.\ud \ud Chapters 6 and 7 describe the formation of novel supramolecular complexes that are based on the\ud p-sulfonatocalix[5,6,8]arenes. The resulting supramolecular architectures include unprecedented bis-molecular capsules, coordination polymer chains and 3-D networks.\ud \u

Publisher: School of Chemistry (Leeds)
Year: 2004
OAI identifier: oai:etheses.whiterose.ac.uk:771

Suggested articles

Citations

  1. (1997). 1 Kang and I Rebek Jr.,
  2. (1990). Acta Cryst., doi
  3. (2001). Calixarenes doi
  4. (2000). Calixarenes In Action', doi
  5. (1998). Calixarenes Revisited', The Royal Society of Chemistry, doi
  6. (2001). Cavity',
  7. (1999). High-Resolution NMR Techniques in Organic Chemistry'. doi
  8. (1994). in 'Antithrombotic treatment with calix(n)arene compounds',
  9. in 'Calixarene chloride-channel blockers',
  10. in 'Preparation of calixarene-based compounds having antibacterial, antifungal, anticancer, and anti-HIV activity',
  11. (1994). in Method of treating viral infections with aryl macrocyclic compounds',
  12. Interaction of the rare earth ions with p-sulfonatocalix[4]arene and 18-crown-
  13. Perkin Trans. doi
  14. (2003). Science, doi
  15. (1995). Supramolecular Chemistry: Concepts and Perspectives', doi
  16. (2000). Supramolecular Chemistry', doi
  17. (2000). Tetrahedron, doi
  18. (2001). Thesis, doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.