Dr. Langhoff's research interests include studies of both molecular structure and molecular spectroscopy using ab initio quantum mechanical methods. The work has relevance to studies of astrophysics, atmospheric chemistry, aerothermodynamics, and combustion chemistry. His current research interests include the determination of molecular opacity data bases for molecular species such as SiO, TiO, and water, and the determination of theoretical infrared spectra for polycyclic aromatic hydrocarbons to assess their role as carriers of the unidentified infrared and diffuse interstellar bands. His current position is Chief of the Computational Chemistry Branch. The research effort in the Branch complements well the Astrobiology mission due to its unique capability of determining molecular spectra, thermodynamic data, and reaction rates, especially for processes not amenable to laboratory studies.

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