title: Tunneling and tunneling switching dynamics in phenol and its isotopomers from high-resolution FTIR spectroscopy with synchrotron radiation.
abstract: Tunneling and chemical reactions by tunneling switching are reported for phenol and ortho-deuterophenol on the basis of high-resolution FTIR spectroscopy. Tunneling splittings are measured for the torsional motion in the ground and several vibrationally excited states of phenol. Tunneling times range from 10 ns to 1 ps, depending on excitation. For more-highly excited torsional levels in ortho-deuterophenol, delocalization and chemical reaction by tunneling switching is found.
authors.affiliation: Physical Chemistry, ETH Zurich, Switzerland. albert@ir.phys.chem.ethz.ch
authors.forename: Sieghard
authors.initials: S
authors.lastname: Albert
authors.forename: Philippe
authors.initials: P
authors.lastname: Lerch
authors.forename: Robert
authors.initials: R
authors.lastname: Prentner
authors.forename: Martin
authors.initials: M
authors.lastname: Quack
mesh_terms: D007700:Kinetics; D019800:Phenol / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared / Q000295:instrumentation / Q000379:methods*; D017356:Synchrotrons
chemical_list: D019800:Phenol