32CA	[3+2] cycloaddition
AI	azomethine imine
ASD	atomic spin densities
A-TAC	allylic-type TAC
BET	Bonding Evolution Theory
cb-type	carbenoid-type
CDFT	Conceptual DFT
DAA	diazoalkanes
DCE	dicyanoethylene
DFT	Density Functional Theory
DIEM	Distortion/Interaction Energy Model
ED	electron-deficient
ELF	electron localisation function
FMO	Frontier Molecular Orbital
GEDT	global electron density transfer
GS	ground state
MC	molecular complex
MEDT	Molecular Electron Density Theory
MO	molecular orbital
Ni	nitrone
pdr-type	pseudodiradical-type
pmr-type	pseudoradical-type
P-TAC	propargylic-type TAC
TAC	three-atom-component
TCE	tetracyanoethylene
TS	transition state structure
zw-type	zwitterionic-type