Subject Area



A majority of the research featured in my dissertation has involved the derivation of direct quantitative measures of intrinsic strength from quantum chemical calculations of molecular systems. In my works I applied Local Vibrational Mode Theory (LVMT) to 1) transform normal modes to local modes, via the elimination of all mode-mode coupling, to obtain local mode force constants (i.e. direct measures of intrinsic strength), 2) in combination with the Unified Reaction Valley Approach, unravel detailed information about bond breaking/formation processes that occur along a reaction, and 3) decompose individual normal modes into percentages of local mode contributions. This dissertation encompasses interesting and novel insights from both my published and in-progress works based on macro- and micro-molecules in various environments.

The results presented within the dissertation are related to the following: hydrated divalent calcium clusters, hydrated divalent magnesium clusters, ultra-long C-C bonds, CC bonds of various substituted hydrocarbon frameworks, 2e/mc interactions (pancake-bonds), CN bond formation in Titan’s atmosphere, the role of CO in carboxy-neuroglobin, the in-plane base vibrations of methylated nucleobases of DNA, stabilizing interactions in inorganic layered MFX (M = Ca, Sr, Ba, Pb, and X = Cl, Br, I) compounds, and bond strengths of ionic crystals.

Degree Date

Summer 8-3-2022

Document Type


Degree Name



Elfi Kraka

Number of Pages




Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

Available for download on Sunday, July 28, 2024