Jet Spectroscopy and Molecular Dynamics

1 Rotational spectroscopy of weakly bound complexes.- 1.1 Introduction.- 1.2 Experimental techniques.- 1.3 Van der Waals complexes.- 1.4 Hydrogen bonded complexes.- 1.5 Conclusion and outlook.- References.- 2 Infrared spectroscopy in supersonic free jets and molecular beams.- 2.1 Introduction.- 2.2 Supersonic free jets and molecular beams.- 2.3 Instrumentation and techniques for infrared spectroscopy in supersonic jets and molecular beams.- 2.4 Applications of FTIR supersonic jet spectroscopy.- 2.5 Applications of infrared laser spectrometers in supersonic jets and molecular beams.- Acknowledgements.- References.- 3 Electronic spectroscopy of free radicals in supersonic jets.- 3.1 Introduction.- 3.2 Experimental approaches.- 3.3 Radicals studied.- 3.4 Conclusion.- Acknowledgement.- References.- 4 Structure of weakly bound complexes from electronic spectra.- 4.1 Introduction.- 4.2 Experimental.- 4.3 Spectroscopy of dimers.- 4.4 Spectroscopy and structure of trimers.- 4.5 Benzene—molecule dimers.- 4.6 Concluding remarks.- Acknowledgements.- References.- 5 Jet spectra of aromatic molecules in hydrogen bonded microsolvant clusters.- 5.1 Introduction.- 5.2 Aromatic molecule/H2O complexes.- 5.3 Aromatic molecule/NH3 complexes.- 5.4 Comparison of experimental data and results of ab initio calculations.- References.- 6 Rotational coherence phenomena.- 6.1 Introduction.- 6.2 Alignment recurrences: the free rotational dynamics of dipole-excited species.- 6.3 Rotational coherence phenomena: observable manifestations of free rotational dynamics.- 6.4 Rotational coherence spectroscopy.- 6.5 Results from experiment.- 6.6 Summary and conclusion.- Acknowledgements.- References.- 7 Ultrafast dynamics of IVR in molecules and reactions.- 7.1 Introduction.- 7.2 Theoretical description ofvibrational coherence and IVR.- 7.3 Applications to molecular systems: non-reactive.- 7.4 Effects of rotations on IVR: mismatches of rotational constants.- 7.5 IVR in reactions.- 7.6 Rotational coherence dynamics and IVR.- Acknowledgements.- References.- 8 Fast relaxation processes in jet-cooled van der Waals clusters involving large aromatic molecules.- 8.1 Introduction.- 8.2 Experimental procedures.- 8.3 Excited-state dynamics of jet-cooled aromatic molecules.- 8.4 The effect of cluster formation on fluorescence lifetimes.- 8.5 Vibrational relaxation.- 8.6 Vibrationally-induced conformational relaxation: perylene complexes with alklyl halides.- Acknowledgements.- References.- 9 Internal rotation dynamics from electronic spectroscopy in supersonic jets and beams.- 9.1 Introduction.- 9.2 Terms in the Hamiltonian and their spectral consequences.- 9.3 Methyl rotor barriers: where do they come from?.- 9.4 Summary.- Acknowledgements.- References.- 10 Shedding light on dark states.- 10.1 Introduction.- 10.2 Experiment.- 10.3 Pyrazine.- 10.4 The phosphorescence spectrum of naphthalene.- 10.5 The singlet—triplet perturbation in the Ã1Au state of acetylene.- 10.6 Conclusion.- Acknowledgements.- References.