what is super acids/explain it
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A super acid is defined as an acid with acidity greater than 100% pure H2SO4. It can also be defined as a medium in which the chemical potential of the proton is higher than in pure Sulphuric Acid. ... Super acid is an acid which has acidity greater than that of 100% pure sulfuric acid.
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The idea behind superacid formation is to combine a compound that can donate a proton (a Bronsted acid - in my example above, hydrogen fluoride) with a compound that can accept a pair of electrons (a Lewis acid - antimony pentafluoride [SbF5] in the above example). The proton goes off as HF dissociates, the SbF5 - which, remember, wants to accept a pair of electrons - sees the pair of electrons on the fluoride, forms SbF6, and now you've got a proton which is basically looking for something with which to react. It's what's referred to as a "naked" proton, as it doesn't (strongly) interact with the SbF6. Its old partner, fluoride, is now happy as part of the new antimony hexafluoride molecule that was formed. It doesn't want to interact with any of the other liberated protons out there, since none of them are proton acceptors (a Bronsted base).
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