nucleophilic substitution
a reaction in which an electron pair donor attacks an electrophilic stomach (an atom with a partial or full positive charge) to replace an atom/ group of atoms
reflux
the continual boiling and condensing of a reaction mixture, thus is to ensure that the reaction goes to completion. during reflux, the condenser must be positioned vertically
fragmentation
during mass spectrometry, unstable molecular ions break down into smaller fragments
m+1 peak
a small peak on a mass spectrum caused by the presence of a small proportion of carbon-13
stereoisomers
compounds with the same structural formula but a different arrangement of atoms in space