Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Host-Guest Complexation"”.
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Polypyrrole modified with sulfonated beta-cyclodextrin: Controlled release of DA and host-guest complexation properties
… results lead to an investigation into the host-guest complexation propertirs of the SB-CD with DA.
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Explorations with optically active, cage-annulated crown ethers.
… active macrocyclic crown ethers that serve as "host" systems that are capable of differentiating between enantiomeric "guest" molecules during host-guest complexation have been prepared via incorporation of chiral elements into the crown ring skeleton. The ability of these crown ethers to …
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Geometric and optical transformations of supramolecular host-guest amphiphiles
… energy applications, and others. Simultaneously, host-guest chemistry provides a robust and powerful mechanism for inducing switching on the molecular level. In this research, we demonstrate a new platform that combines molecular self-assembly of an amphiphilic chromophore guest molecule with its …
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New polymer architectures: synthesis and characterization of polyurethane-crown ether based polyrotaxanes
… 1.5 molar ratio of crown ether to linear glycol. Host-guest complexation of paraquat dication and BPP34C10 has been studied. A series of difunctionalized paraquat dication derivatives was synthesized and used to prepare host-guest complexes (pseudorotaxanes) with BPP34C10. X-Ray crystal structures …
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Part I. Molecular tweezers: Role of preorganization and synthetic progress toward a water soluble tweezer. Part II. Progress towards an empirical approach to carbohydrate recognition
… to determine the role of preorganization in the host-guest complexation of these systems. The synthesis of these tweezers was accomplished by the reaction of their respective dibromo-pyrylium salts with an absolute ethanol/aqueous ammonium hydroxide solution followed by a lithium/halogen exchange …
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Synthesis and Recognition Properties of Functionalized Nanomaterials From Pyridyl Urea Macrocycles
… of three symmetrical macrocyclic pyridyl urea hosts. X-ray crystal structures show the conformational difference between the free host and the host*guest complexes. These solid-state studies also revealed the interactions that are important for binding cations. The host* guest complexation was …
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Nano chemistry : large molecular capsules and coordination networks based on self-assembly
… 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 techniques have also been used to identify p-sulfonatocalix[4]arene/crown ether complexation in the solution phase. …
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The Formation and Characterisation of a Polypyrrole Based Sensor for the Detection of Urea
… film. A detailed investigation into the host-guest complexation properties of SCD with urea, and the interfering compounds, was performed using cyclic voltammetry. Clear evidence for complexation between SCD as the host molecule and urea as the guest molecule was obtained, which accounts …
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Cucurbit[n]uril-engineered Nano-constructs for Molecular Sensing
… strong and selective encapsulation of various guest molecules into its barrel-shaped cavity. In addition, it can function as a precise rigid spacer between metallic nanoparticles (NPs). The larger homologue CB[8] can simultaneously sequester two guest molecules to form ternary complexes, …
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Design, Synthesis and Self-Assembly of Polymeric Building Blocks and Novel Ionic Liquids, Ionic Liquid-Based Polymers and Their Properties
… and architectures by supramolecular methods. Host-guest complexations of polymers are also possible through well-defined synthesis of polymeric building blocks, for novel supramolecular polymers. Monotopic polymeric building blocks were synthesized by controlled radical polymerizations with a …