bimolecular reaction
elementary reaction that occurs between two reactants
electrophile
molecule or ion that accepts electrons to form a covalent bond
elimination reaction
chemical reaction in which the removal of two atoms (usually a hydrogen and a leaving group) forms a pi bond
Hofmann's rule
rule that states that steric effects have the most considerable influence on outcomes, specifically the loss of a beta hydrogen from the least substituted position
initiation step
step in a radical reaction in which a covalent bond breaks and produces two radical species
inversion
change in orientation that occurs during SN2 reactions, when backside displacement of the halogen creates a new molecule with the opposite orientation of the original molecule (an inversion of stereochemistry)
leaving group
functional group that is able to leave a compound and usually forms a stable (weak) species
nucleophile
molecule or ion rich in electrons that donates a pair of electrons that forms a covalent bond
polar aprotic solvent
solvent that contains a polar bond but does not have hydrogen bonding
polar protic solvent
solvent that contains a polar bond that exhibits hydrogen bonding
propagation step
step in a radical chain reaction where a reactive free radical reacts with a stable molecule to form a new free radical
racemic
1:1 mixture of enantiomers
regiochemistry
process that favors bond formation at one atom (or location) over another
solvent
substance that dissolves a material to form a solution
substitution reaction
chemical reaction in which one functional group (leaving group) is replaced with another functional group
termination step
step in a radical reaction where two radicals combine to form a covalent bond and no new radicals are formed
unimolecular reaction
elementary reaction with one reactant
Zaitsev's rule
rule that states that the alkene formed is more highly substituted because it is more stable