\begin{thenomenclature} \nomgroup{A} \item [{BIRD}]\begingroup blackbody infrared radiative dissociation \nomeqref {0} \nompageref{viii} \item [{BO}]\begingroup Born-Op­pen­heimer \nomeqref {0} \nompageref{viii} \item [{BSSE}]\begingroup basis set superposition errors \nomeqref {0} \nompageref{viii} \item [{CAD}]\begingroup collisionally activated dissociation \nomeqref {0} \nompageref{viii} \item [{CC}]\begingroup coupled cluster \nomeqref {0} \nompageref{viii} \item [{CI}]\begingroup configuration interaction \nomeqref {0} \nompageref{viii} \item [{CID}]\begingroup collision‐induced dissociation \nomeqref {0} \nompageref{viii} \item [{CM3}]\begingroup class IV - charge model 3 \nomeqref {0} \nompageref{viii} \item [{CSF}]\begingroup configuration state function \nomeqref {0} \nompageref{viii} \item [{DFT}]\begingroup density functional theory \nomeqref {0} \nompageref{viii} \item [{DFTB}]\begingroup density-functional based tight-binding \nomeqref {0} \nompageref{viii} \item [{DFTB3}]\begingroup third-order extension of DFTB \nomeqref {0} \nompageref{viii} \item [{FF}]\begingroup force field \nomeqref {0} \nompageref{viii} \item [{GGA}]\begingroup generalized gradient approximation \nomeqref {0} \nompageref{viii} \item [{HF}]\begingroup Hartree-Fock \nomeqref {0} \nompageref{viii} \item [{HK}]\begingroup Hohenberg–Kohn \nomeqref {0} \nompageref{viii} \item [{KS}]\begingroup Kohn-Sham \nomeqref {0} \nompageref{viii} \item [{LCAO}]\begingroup linear combination of atomic orbitals \nomeqref {0} \nompageref{viii} \item [{LDA}]\begingroup local density approximation \nomeqref {0} \nompageref{viii} \item [{LEP}]\begingroup location of excess proton \nomeqref {0} \nompageref{viii} \item [{LOC}]\begingroup line of center model \nomeqref {0} \nompageref{viii} \item [{MCPs}]\begingroup micro-channel plates \nomeqref {0} \nompageref{viii} \item [{MCTDH}]\begingroup multi-configuration time-dependent Hartree \nomeqref {0} \nompageref{viii} \item [{MD}]\begingroup molecular dynamics \nomeqref {0} \nompageref{viii} \item [{MM}]\begingroup molecular mechanics \nomeqref {0} \nompageref{viii} \item [{MP2}]\begingroup Møller-Plesset perturbation theory at second-order \nomeqref {0} \nompageref{viii} \item [{NBO}]\begingroup natural bond order \nomeqref {0} \nompageref{viii} \item [{NUL}]\begingroup neutral uracil loss \nomeqref {0} \nompageref{viii} \item [{PAH}]\begingroup polycyclic aromatic hydrocarbons \nomeqref {0} \nompageref{viii} \item [{PES}]\begingroup potential energy surface \nomeqref {0} \nompageref{viii} \item [{PST}]\begingroup phase space theory \nomeqref {0} \nompageref{viii} \item [{PTMD}]\begingroup parallel-tempering molecular dynamics \nomeqref {0} \nompageref{viii} \item [{QM}]\begingroup quantum mechanics \nomeqref {0} \nompageref{viii} \item [{SCC-DFTB}]\begingroup self-consistent-charge density-functional based tight-binding \nomeqref {0} \nompageref{viii} \item [{SCF}]\begingroup self-consistent field \nomeqref {0} \nompageref{viii} \item [{TCID}]\begingroup threshold collision-induced dissociation \nomeqref {0} \nompageref{viii} \item [{TOF}]\begingroup time-of-flight \nomeqref {0} \nompageref{viii} \item [{TOFMS}]\begingroup time-of-flight mass spectrometry \nomeqref {0} \nompageref{viii} \item [{VV}]\begingroup velocity Verlet algorithm \nomeqref {0} \nompageref{viii} \item [{WF}]\begingroup wavefunction \nomeqref {0} \nompageref{viii} \item [{ZPVE}]\begingroup zero-point vibrational energy \nomeqref {0} \nompageref{viii} \end{thenomenclature}