Bond dissociation energies for alkaline fluorides.

04 March 2024, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Abstract. The whole array of experimental data on the bond dissociation energy (BDE) and bond length values for alkaline fluorides was analysed. To this end the fundamental correlation of bond energy with its length was applied. According to experimental data the bond M-F (M = Li, Na, K, Rb, Cs) is formed via overlapping of the occupied p-orbital of fluorine and unoccupied p-orbital of alkaline metal, which can be considered as “π-bond”. These bonds can be either in degenerate or non-degenerate states. The influence of measuring process on the result, as well as application of the resonance theory to alkaline fluorides, is discussed.

Keywords

Bond dissociation energy
alkali fluorides
resonance theory
thermochemistry
backdonation
Yukawa potential

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