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Showing 1 to 20 of 20 for “"Metallofullerene"”.
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Antioxidant studies of fullerene and metallofullerene derivatives and fluorescence studies of terbium-containing metallofullerene derivatives
Fullerenes and metallofullerenes have been discovered to have a lot of applications in the biomedical area, for instance, they have been shown to have antioxidant, anti-virus, anti-cancer, immunological properties, etc. However, the hydrophobicity nature of fullerenes and metallofullerenes raises …
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Machine Learning Models in Fullerene/Metallofullerene Chromatography Studies
… which are not easy to obtain. Fullerenes/metallofullerenes are rigid and spherical molecules with only carbon atoms, which makes the predictions of chromatographic retention behaviors as well as other properties much simpler than other flexible molecules that have more variations on …
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Thermoionization and dissociation of fullerenes and endohedral fullerenes
… second experimental effort is the study of metallofullerene formation. Threshold energies were found in the formation of potassium metallofullerenes and sodium metallofullerenes. The large thresholds indicate that the alkali metallofullerene products have endohedral structure. Sodium ion …
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Part I. Cytochrome c oxidase active-site modeling: Synthesis and characterization of new unsymmetrical tris(imidazole- and pyridine-appended) picket-fence porphyrins and their metal complexes. Part II. Toward fullerene-based radiopharmaceuticals: High-yield neutron activation of endohedral holmium-165 metallofullerenes
… to be assumed. Part II . Endohedral holmium metallofullerenes, 165 Ho x @C 82/84 (x = 1,2), have been prepared by carbon-arc methods and separated from empty fullerenes by HPLC techniques. The 165 Ho metallofullerenes and empty C 60 were then bombarded with neutrons under differing flux …
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Synthesis and Functionalizations of Trimetallic Nitride Template Endohedral Metallofullerenes (TNT-EMFs)
… trimetallic nitride template endohedral metallofullerene (TNT-EMF) and the functionalizations of M3N@C80 (M = Sc, Gd, Ho) under the high-speed vibration milling (HSVM) condition. In addition, this thesis discusses the internal motion of the cluster, Sc3N inside three different carbon …
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Exohedral Functionalization and Applications of the Trimetallic Nitride Endohedral Metallofullerenes
… and Sc₃N@C₇₈ trimetallic nitride endohedral metallofullerenes. In addition, this dissertation discusses miscellaneous research that is relevant to the aformentioned metallofullerenes and their applications, such as the discovery of a new cage isomer <i>(D<sub>5h</sub>)</i> of Sc₃N@C₈₀, the …
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Computational Study of the Properties and Stabilities of Endohedral Metallofullerenes
… to recently discovered or studied endohedral metallofullerenes (EMF) and a theory as to the selective stability of certain isomers of EMFs. Computational treatments of the anions of C80 and C94 are presented and compared in an effort to gain an understanding and predictive model for which …
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Novel preparation of endohedral metallofullerenes via laser vaporization of fullerene/metal pellets
… of choice for the production of endohedral metallofullerenes (Am@C2n). However, yields of endohedral metallofullerenes have been limited to only a few percent of the total fullerene yield, making the production and isolation of macroscopic quantities (grams) difficult. In the present study, …
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Chromatography and purification of endohedral metallofullerenes
… permits the selective detection of only those metallofullerenes with an odd-number of encapsulated atoms. The ability to continually monitor separations of these paramagnetic species ultimately permits the optimization of chromatographic parameters. The methodology developed from this on-line …
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Fluorine-containing fullerenes and endometallofullerenes: synthesis, structure, and spectroscopic characterization
… (m = 14, 16, 18, 20, and 22), the endohedral metallofullerene Sc3N@C80-Ih(7), and the azafullerene dimer (C59N)2. Several efficient synthetic methods have been developed for perfluoroalkylation, which involved high-temperature reactions with AgCF3CO2 and with thermally or photochemically …
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Studies of Solution Paramagnetic-Substrate Nuclear and Electron Intermolecular Interactions
… nitride template functionalized endohedral metallofullerenes (TNT-fMF). The attitude and average distance of interaction for each TEMPO-substrate system was determined from comparing density functional theory (DFT) calculation results with experimental hyperfine coupling constants leading to …
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The Studies of Fullerenes and Metallofullerenes in Geometry, Electron Transfer, Chromatography and Characterization
Since their discovery, fullerenes and metallofullerenes have been investigated regarding their structures, synthesis, isolations, and applications. The highly symmetric structures of fullerenes and metallofullerenes lead to extraordinary physical properties, such as electron transfers, and attract …
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Optical Limiting and Degenerate Four-Wave Mixing in Novel Fullerenes
… of the isomers isolated so far. The endohedral metallofullerenes are a unique class of fullerene materials and consist of one or more metal atoms encapsulated inside the buckyball cage. An important characteristic of these materials is the charge-transfer from the dopant atoms to the fullerene …
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Chemical Reactivity and Regioselectivity of Trimetallic Nitride Endohedral Metallofullerenes
Endohedral metallofullerenes (EMF) have attracted increasing attention during past decades for their potential applications in the fields of biomedicine and nanomaterials. Trimetallic nitride template endohedral metallofullerenes (TNT EMFs) are some of the most promising fullerene-based materials …
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Preparation, Separation, Characterization and Hydrogenation of Endohedral Metallofullerenes
Endohedral metallofullerenes (EMFs) have attracted increasing attention during past decades due to their novel structures and potential applications in a variety of fields such as biomedical applications and molecular electronics. This dissertation addresses the structural characterization and …
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Gadolinium Endohedral Metallofullerenes for Future Magnetic Resonance Imaging Contrast Agents
Gadolinium endohedral metallofullerenes (EMFs) have shown the potential to become next generation magnetic resonance imaging (MRI) contrast agents due to their significantly improved efficiency and safety, as well as multi-day body retention which allows for a longer surgery and observation …
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Fullerene Based Nanomaterials for Biomedical Applications
… briefly introduces recent progress in developing metallofullerenes for next-generation biomedical applications. Of special interest are MRI contrast agents. Other potential biomedical applications, toxicity, stability and biodistribution of metallofullerenes are also discussed. Finally, the …
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The Preparation, Functionalization and Biomedical Applications of Carbonaceous Nanomaterials
… Trimetallic nitride template endohedral metallofullerenes (TNT-EMFs, M₃N@C₈₀, M = Gd, Lu, etc.) are some of the most promising materials for biomedical applications. Water-soluble Gd₃N@C₈₀ was prepared by the functionalization with poly(ethylene glycol) (PEG) and hydroxyl groups …
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The Chemistry of Fullerenes, Polymers, and Host/Guest Interactions
… to increase the availability of endohedral metallofullerenes by decreasing their cost of production. Functionalized fullerene species were achieved through Bingel and Prato reactions to provide materials with novel functional groups. These materials may be further utilized in photovoltaic or …
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Yttrium, Gadolinium, and Lutetium Based Endohedral Metallofullerenes: From Synthesis to Application
… exotic EMFs, the room-temperature radical heterometallofullerene Gd2@C79N, and the egg-shaped TNT EMF Gd3N@C84. The reactivity of Gd2@C79N is directly compared to Y2@C79N, Gd3N@C80 and Sc3N@C80 in two reactions and the paramagnetic Gd2@C79N is proven to be very inert toward many known common …