Discipline: Chemistry and Chemical Sciences
Subcategory: Chemistry (not Biochemistry)
Room: Exhibit Hall
Kristine Maxwell - Truman State University
Co-Author(s): Brandi James, University of Cincinnati, Ohio, Cincinnati; Dr. Anna Gudmundsdottir, University of Cincinnati, Ohio, Cincinnati.
Photochemistry is a type of chemistry that uses light to initiate a chemical reaction at the macroscopic level. Reaction in the solid-state, specifically with organic azide crystals, is utilized because they are cost-effective, reduce the amount of chemical waste in the environment, and can demonstrate a variety of photodynamic behaviors such as: cracking, bending, hopping, etc. Dynamic azide crystals are known as explosive materials that release N2 gas when responding to external pressure. Before these organic crystals can be used in applications such as robotics, sensors, etc., we need to understand their crystal packing and forces between the lattices, which dictate how the crystal will react to external stimuli. In this study, the photodynamic reactivity of 1-azido-2-nitrobenzene (1A2NB) crystals is analyzed under external pressures by using a variety of methods and a variety of different oils with different viscosity. If crystals are under external pressure then the crystals will exhibit different photodynamic behavior compared to the crystals without external pressure. The size of the crystals was found to affect the photodynamic behavior of the crystals within a variety of different oils. In the future, more experiments will be conducted with bigger and higher quality crystals to hopefully see a consistent photodynamic behavior. Study the photodynamic effects of other 1-azido-2-nitrobenzene derivatives.
Funder Acknowledgement(s): My research was founded by the University of Cincinnati Chemistry REU program which is founded by the National Science Foundation(NSF).My equipment for the experiments was founded by Dr. Anna Gudmundsdottir’s lab.
Faculty Advisor: Dr. Anna Gudmundsdottir, firstname.lastname@example.org
Role: The part of the research that I did was conducting multiple syntheses and recrystallizations to create pure crystals. Then I characterized the crystals using H-NMR, C-NMR, IR, and TLC plates. I also looked at the crystals under a microscope to determine the compound photodynamic behaviors.