10.18453/rosdok_id00003490 Kondratev, Stanislav Stanislav Kondratev http://d-nb.info/gnd/1251957048 Universität Rostock 2021 540 Chemistry & allied sciences 2021 en http://purl.uni-rostock.de/rosdok/id00003490 urn:nbn:de:gbv:28-rosdok_id00003490-1 Dispersion and non-covalent interactions are often responsible for the intramolecular stabilization of flexible or strained molecules, so taking these forces into account is a crucial contribution to rationalizing the unexpected stabilities of such molecules. To quantify non-covalent interactions in such well-defined molecular and ionic systems, we have developed and validated three thermodynamic methods based on the “experimental” enthalpy of vaporization and enthalpy of formation as well as based on the “theoretical” DFT-calculated energy.