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 13 of 13 for “"Cyclophanes"”.
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Expanded cyclophanes for switchable capture/release of metal complexes
The thesis, entitled ‘Expanded Cyclophanes for Switchable Capture/Release of Metal Complexes’ is separated into four main chapters. The first chapter focuses on the introduction of cyclophane receptors and the use of cyclophanes in molecular machines and some other potential applications. Then, an …
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New Cyclophanes as Supramolecular Scaffolds: The Synthesis of Tribenzo-1,4,7-Triazacyclononatriene.
… and derivatives thereof. These new cyclophanes should have greater versatility than the parent hydrocarbon macrocycle including greatly enhanced water solubility, ability to coordinate to metal ligands, the potential for use in drug delivery, and unique optical and liquid crystal …
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Shape-switching studies with cyclophanes and indicator displacement assays with boronic acids
This thesis includes the development of indicator displacement assays (IDAs) with a boronic acid receptor, used for the differentiation of Z and E alkene mixtures. An IDA protocol was developed which is ammenable to high-throughput screening and can successfully identify Z and E alkene mixtures …
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Investigation of the Triplet State Properties of Bis(chlorophyll)cyclophane and Its Partially Metalated Derivatives
… of the photoexcited triplet state of the cyclophanes were studied using light modulated EPR (electron paramagnetic resonance) techniques on frozen solutions at 9K.
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Synthesis and properties of novel macrocycles and related chromophoric benzenoid compounds
… between the protons involved. Fluorinated [2,2]p-cyclophanes have been attracting increased attention. Poly(p-xylylene) polymers are materials of current technological interest. An obstacle to the commercialization of these polymers is the multistep syntheses required to obtain the fluorinated …
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Spectroscopic Studies of Inclusion Host-Guest Complexes Between Cyclophane Corrals and Polcyclic Aromatic Hydrocarbons
Cyclophanes are macromolecules that are known to effectively bind with molecules to form host-guest complexes. Several cyclophane molecules, referred to as corrals (1-6) by their founders, have been synthesized. The characterization of these compounds and their complexes has been investigated using …
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ALKYLATION AND OXIDATIONS OF SYMMETRICAL DIMETHYLENEBIPHENYL AND RELATED DIANIONS (CYCLOPHANE, BIPHENYLOPHANE, NMR, CONFORMATION).
… provides an excellent route to n.0 - and n.0.n.0 cyclophanes. An X-ray study on 14.0 paracyclophane showed it to have a conformation different from that observed in solution by NMR; MM2 calculations were used in determining what the solution conformation is likely to be. Oxidation of the dianions …
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Synthesis and properties of benzannulenes and their metal complexes
A series of bis [e] and [a] fused dibenzannulenes/cyclophanes have been synthesized for the first time using benzyne-like intermediates (annulynes). These include the dibenzannulene trans-2,9-di-t-butyl-14c, 14d-dihydro-14c-14d-dimethyldibenzo[fg,op]naphthacene 82b, and the metacyclophanedienes …
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Applications of Molecular Switching and Logic
… affinities by a new class of anionic triangular cyclophanes. The shapes of these macrocycles can be switched by redox agents to release their cargo. The intermediate state of perching complexation is also demonstrated. Such switchable second-sphere complexation opens the way to hide or expose the …
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Development of mechano-active organic materials for shock wave energy dissipation
… of molecular and polymeric arenediynes and cyclophanes. The steric and electronic effects of bulky, electron rich aryl substituents on the cyclization pathways of molecular arenediynes are also discussed. Since the kinetics/rate of volume collapse is crucial for SWED, chapter 3 focuses on …
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The synthesis and chemistry of the cyclophanenes and their metal complexes
… 2,6-dihalogen-substituted toluene via monothiacyclophanes as intermediate compounds, was developed. By this method, anti-5,8,13-16-tetramethyl [2,2] (1,3)cyclophan-1-ene, 56b, and anti-4,6,8,12,14,16-hexa-methyl [2,2] (1,3)cyclophan-1-ene, 56c, were first synthesized as well as three new …