Are Strong Bronsted Acids Necessarily Strong Lewis Acids

摘要: The Broensted and Lowry acid base theory is based on the capacity of proton donation or acceptance (in presence absence a solvent) whereas Lewis propensity electron pair donation. We explore through DFT calculation obvious question whether these two theories are in conformity with each other. use pKa as descriptor for acidity. descriptors like ionization potential, affinity, electronegativity, hardness global electrophilicity computed 58 organic inorganic acids. fractional transfer, del(N) associated energy change, del(E) reaction acids trimethyl amine (a strong base) used possible A near exponential decrease (-del(E)) values observed general an increase values. findings reveal that stronger most cases behaves well. However it not necessarily true all