Notes11 Flashcards
acidic proton
relatively large delta+ charge
Bronsted-Lowry acid
proton donor. donate proton to old base/new conjugate acid
Bronsted base
proton acceptor. becomes conjugate acid after proton transfer
base/nucleophile similarities
base is pretty much a nucleophile to acidic protons
base strength
measure by how strong/stable is bond to the acidic proton is
pKa formula
pKa=-log(Ka)=log(1/Ka)
strength of bases measured by…
pKa of conjugate acid. They are one and the same
strong acids have…
relatively stable conjugate bases (CB doesnt want to hang on to proton)
functional group
reactive site in molecule. these are always sites of high electron density
heteroatoms
atoms other than C or H
introduction of heteroatoms…
almost invariably causes a dipole
periodic trend of basicity
highest atoms are most basic. think EN trend
another interpretation of base
wants electrons more badly than a proton
leaving group
group which retains old bonds electrons and leaves