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Full-Text Articles in Physical Sciences and Mathematics
Synthesis Of Cadmium Arsenide Semiconductor Nanoparticles, Superatomic Silver Clusters, And Silver Coordination Polymers, Sarthak Jashubhai Patel
Synthesis Of Cadmium Arsenide Semiconductor Nanoparticles, Superatomic Silver Clusters, And Silver Coordination Polymers, Sarthak Jashubhai Patel
Legacy Theses & Dissertations (2009 - 2024)
Nanomaterials have chemical, electronic, optical, and other properties distinct from their bulk counterparts. However, the atom-precise synthesis of these materials remains a challenge, leaving open many scientific questions regarding the size regime between nanoparticulate (quantum confined) and bulk character. In this work, efforts toward the synthesis of nanoparticulate and atom-precise metal and semimetal materials are described. The synthesis of II-V semiconductor Cd3As2 having a near-zero bandgap is discussed. Analysis by UV-Vis absorption spectroscopy and powder X-ray diffraction indicate the formation of material with unexpected crystallinity and absorption properties The interaction between the molecular source of As and the solvent was …
Synthesis And Characterization Of Diallylic Polysulfanes And Study Toward The Synthesis Of Thiarubrine E, Kai Wang
Legacy Theses & Dissertations (2009 - 2024)
Garlic oil contains diallyl polysulfanes as major components, which have been used as environmentally benign bird repellants and nematicides. While previous studies found that the biological activity of polysulfanes increases with numbers of sulfur atoms, higher diallyl polysulfanes are currently unavailable. A simple approach was developed, using liquid sulfur as a reagent, to the synthesis of diallyl polysulfanes containing chains of more than 20 sulfur atoms. This method was successfully applied to other diallylic disulfides and to garlic oil to give new families of polysulfanes. Some diallyl polysulfanes were isolated in a pure form by preparative high performance liquid chromatography …