Terms
Bimolecular
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Involving two molecules. In this SparkNote, the term bimolecular is used to refer to
SN2 and E2 reactions. The rate-limiting transition states of both
reactions involve two molecules.
Carbocation
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A carbon that carries a positive charge. Carbocations are highly unstable and are prone to
rearrangement. SN1 and E1 reactions proceed through a common
carbocation intermediate.
E1
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A reaction where a β-hydrogen is Eliminated to form a double bond.
E1 reactions go through a carbocation intermediate. Somewhat similar to the
E2 reaction.
SN1
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A reaction in which a Nucleophile Substitutes for a leaving group.
SN1. It goes through a carbocation intermediate.
Secondary
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A secondary carbon has bonds to two other carbons.
Tertiary
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A tertiary carbon has bonds to three other carbons.
Unimolecular
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Involving one molecule. This term is used synonymously with the E1 and SN1 reactions in this SparkNote. The rate-limiting transition states of both mechanisms involve one molecule.
