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Showing 1 to 10 of 10 for “"Calix[4]arenes"”.
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Investigations into the Synthesis of InherentlyChiral Calix[4]arenes
The design and synthesis of highly functionalised calix[4]arenes are of great interest for research. The modification of the upper-rim of calix[4]arene allows the lower-rim to act as a potential molecular binding site. Our objective is to develop methodologies and synthetic routes that allow us to …
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Synthesis of Tin Containing Calix[4]arenes and their Anion Binding Capabilities
… research has been done on the ability of calixarenes to complex cations and neutral species. The electron-rich molecular cavity and lower rim consisting of a cyclic array of oxygen donors makes the structure of the calixarene conducive to this type of complexation. Conversely, the …
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Polymers containing calix[4]arenes and triptycenes : new syntheses, properties and applications
… polymers with complex molecular structures. Calix[4]arenes and triptycenes are the two major molecular building blocks for constructing the functional polymers. Unusual properties, with the emphasis on mechanical and sensory properties, are demonstrated. In Chapter 2, early investigations on …
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Investigation of artificial malonyl group carriers and multifunctional cyclic scaffolds towards the mimicry of PKS
… method to obtain monofunctionalised calix[4]arenes blocked in a cone conformation is described. A broad range of monoarmed calix[4]arenes have been synthesised and the properties of some of these calix[4]arenes studied. In addition, a simple method for the preparation of multi …
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Heterocyclic Calix[4]arene Derivatives for Fluorescence Investigations
… of a family of novel Schiff base capped calix[4]arenes. These ligands were prepared using three 1,3 bis-bromo-alkyl-disubstituted calix[4]arenes (ethyl, propyl and butyl), and ortho, meta and para substituted di-imine bridged diphenol units. All these reactions yielded the desired product …
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The Study of Lanthanides for Organometallic and Separations Chemistry
… of a class of lower rim functionalized calix[4]arenes containing ligands that have been previously shown to selectively separate lanthanides. These calix[4]arenes will be attached to a solid support through an alkyl linker at the methylene position and separation will be based primarily …
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Molecule recognition of nucleic acids, nucleosides, nucleotides, and their derivatives
… towards cancer cells was also investigated. Calixarenes containing DNA building units such as nucleotides, nucleosides, and nucleobases have recently aroused much interest because of their versatile applications. In chapter 5, we report the synthesis of calix[4]arenes ( 5.11-5.14 ) …
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Synthesis and single-molecule force spectroscopy of supramolecular capsules
… supramolecular capsules based on cavitands and calix[4]arenes is investigated. In the first part, large supramolecular coordination cages have been prepared by metal-directed self-assembly of functionalized cavitands. The synthesis of the hexameric coordination cage demonstrates, that …
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Calix[4]pyrrole-based ion pair receptors
… efforts to develop such systems on the basis of calix[4]arenes and calix[4]pyrroles. Calix[4]pyrroles and calix[4]arene derivatives bearing crown ethers or ester groups are known to act as efficient receptors for anions and cations, respectively. Therefore, the synthetic combination or …
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Structure Activity Study of a Family of Functional Pyrene-Isoxazole-Calix[4]arene Fluorescent Chemosensors for Metal Ion Detection
… a novel family of pyrene-isoxazole-calix[4]arenes. Aninvestigation of their metal cation sensing abilitiesusing techniques including absorbance, fluorescence and 1H NMR spectroscopiesfollows.The novel work begins by developing apyrene-isoxazole appended calix[4]arene,PIC thatcould …