DFT	Density Functional Theory
DQMC	Diffusion Quantum Monte Carlo
CPMD	Car-Parrinello Molecular Dynamics
CC	Coupled Cluster
HOMA	Harmonic Oscillator Model of Aromaticity
AIM	Atoms In Molecules
SAPT	Symmetry-Adapted Perturbation Theory
NMR	Nucleic Magnetic Resonance
IR	Infrared spectrum
PES	Potential Energy Surface
TS	Transition State
SSP	Second-order Saddle Point
HB	hydrogen bond
PT	Proton Transfer
MP2	Møller-Plesset second-order perturbation theory
BCP	Bond Critical Point
RCP	Ring Critical Point
BSSE	Basis Set Superposition Error
2D	two-dimensional