I am Timothé Melin, a 4th year Ph.D. student at Michigan State University working for Dr. Angela K. Wilson. I graduated from the University of Bordeaux (France) with a major in chemistry and then completed a master's degree in theoretical and computational chemistry at the University Paul Sabatier (Toulouse). While in Toulouse, I worked with Dr. Trond Saue on the development of a method to simulate x-ray absorption spectroscopy beyond the electric-dipole approximation.As a Ph.D. student, my research has been focused in several areas: (1) thermochemistry of transition metal species; (2) complex electronic manifolds of heavy element species; (3) stability and reactivity of emerging contaminants.My poster at this ACS meeting represents project (2), which entails an investigation of the ground and excited states of LuF, to understand not only the chemistry of this small, but complex molecule, and gain insight in terms of computational methodologies necessary for appropriate description.