Electronic Theses and Dissertations

Date of Award

1-1-2025

Document Type

Dissertation

Degree Name

Ph.D. in Chemistry

First Advisor

Ryan C. Fortenberry

Second Advisor

Gregory S. Tschumper

Third Advisor

Nathan I. Hammer

School

University of Mississippi

Relational Format

dissertation/thesis

Abstract

The chemical environments and processes of the Earth’s atmosphere, the interstellar medium, and circumstellar media remain relatively understudied despite the vast molecular material available therein. Despite the advancements of emerging spectroscopic technologies, there is still a lack of reliable reference data for potential atmospheric, inter-, or circumstellar molecular species. Therefore, accurate prediction of rovibrational spectral constants is crucial for enabling current and emerging spectroscopic technologies to detect elusive inorganic molecules both within and beyond the terrestrial veil. Recent advancements in computational methodology have significantly reduced computational time while simultaneously improving the accuracy of these spectral constants. The present work highlights recent progress of computational techniques as they apply to highly accurate theoretical spectroscopy for predicting rovibrational spectral constants relevant to both interstellar and atmospheric chemistry.

Available for download on Friday, July 30, 2027

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