Vibrational Energy Flow in Electronically Excited Polyatomic Molecules

02 concentration data A.E.W. Knight absorption approximately aromatic ring average coupling matrix bandpass bond lengths C-H stretching C.S. Parmenter calculated channel three model channel three region Chem chemical timing studies collision collision-induced coupling matrix element D.A. Dolson D.B. Moss density of coupled displacement e-aro eigenstates electronic Evdw Evib excitation experimental Fermi resonance fluorescence fluorescence spectra G.E. Ewing glyoxal hyperconjugation Indiana University intramolecular intramolecular vibrational IVR and channel K.W. Holtzclaw laser linewidths methyl group methyl hydrogens methyl rotor molecular Hamiltonian molecular symmetry molecule observed p-fluorotoluene parameters pDFB Phys psec quantum yields quenching R.A. Coveleskie radiationless transition rate constant ring vibrations rotor-vibration coupling S₁ S1 benzene S1 pFT single vibronic level spectroscopic spectrum symmetry Table 3-VI Torr torsional energy torsional potential van der Waals vibrational energy transfer vibrational identity vibrational level mixing vibrationally vibronic transitions Waals energy Waals interactions Waals radii Yoshihara Zewail