Hardness; Strength of materials; Energy change; Hard acids; Soft acids; Reaction kinetics
A demonstration of the hard/soft-acid/base principle involves showing that the energy change for Ah Bs + As Bh → Ah Bh + As Bs is always negative. We point out problems with assumptions made about hardness and strength of the components, but emphasize that problems with the way in which energies are calculated are even more important.
Goodisman, J. (2007). Hard/soft-acid/base principle and the reaction ah bs + as bh → ah bh + as bs. Journal of Chemical Physics, 127(6)
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