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2010 Summer NC State Undergraduate Research Symposium
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Session Time :
8/5/10 1:00 PM - 8/5/10 4:00 PM
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Content Area : Initiative for Maximizing Student Diversity Program (IMSD)
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Lead Student Presenters : Austin Reese Smith
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Abstract Title : Identifying Aggregative Properties of Pd2DBA3
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Abstract :
The phenomenon of aggregation in chemistry is caused by the interaction of insoluble compounds with one another. My project involved the study of the phenomenon of aggregation by the inorganic complex tris(dibenzylideneacetone)dipalladium (Pd2DBA3). This project has branched from a study done to understand claims of mediation by ribonucleic acid (RNA). The goal of this project is to determine the characteristics of the by product formed after centrifuging, so that I can further understand aggregation. Pd2DBA3 was placed in 50% tetrahydrofuran (THF) and diluted with a 1.5 mL of water, in which could be centrifuged. To understand this phenomenon, two important tests were used in this study. These included DLS (Dynamic Light Scattering) which measures the size of particles in a solution, and UV Vis; which is a technique used to verify absorption levels of a solution. After one week of letting the solutions sit, I encountered that the vials of the centrifuged solution performed a color change. In addition, black solid materials appeared and were floating inside of this vial. After adding THF back to this solution, the solution returned back to the normal purplish color of the Pd2DBA3 in THF. Thus further tests have concluded that this finding has to be evident of a reverse reaction, due to a similarity of results from running tests on this solution. Which has led me to believe that the aggregates formed might be the Pd2DBA3 reforming.
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Mentor and/or Co-Author : Stefan Franzen
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