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Characterization and Thermal Decomposition of Sub-allotrope Violet Phosphorus-21

Portrait of graduate student Bradley Norvell, speaker
Bradley Norvell
Graduate Student, Department of Chemistry
University of Georgia
Science Learning Center, Room 345
Materials Chemistry and Nanoscience Seminar

Phosphorus, one of many elements that fall under the umbrella of inorganic chemistry, is currently experiencing a renaissance due to advancements in synthetic methodology. Currently, there are 4 primary allotropes of phosphorus. While red, white, and black phosphorus have been well-studied, it is only recently that a reliable synthesis of crystalline violet phosphorus has been established. Violet phosphorus, originally known as Hittorf’s phosphorus, can be further divided into sub allotropes: violet phosphorus-21 (VP21) and violet phosphorus-11 (VP11). To experimentally differentiate these sub-allotropes, we have developed a systematic method of characterization. We have also studied the electronic properties of VP21 through a series of in situ heating experiments. Further, we have critically evaluated the effect of varying synthetic conditions on the production of crystalline VP21

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