title: Quantum tunneling of hydrogen atom in dissociation of photoexcited methylamine.
abstract: The probability of hydrogen atom release, following photoexcitation of methylamine, CH(3)NH(2), is found to increase extensively as higher vibrational states on the first excited electronic state are accessed. This behavior is consistent with theoretical calculations, based on the probability of H atom tunneling through an energy barrier on the excited potential energy surface, implying that N-H bond breaking is dominated by quantum tunneling.
authors.affiliation: Department of Physics, Ben-Gurion University, Beer Sheva 84105, Israel.
authors.forename: Ran
authors.initials: R
authors.lastname: Marom
authors.forename: Chen
authors.initials: C
authors.lastname: Levi
authors.forename: Tal
authors.initials: T
authors.lastname: Weiss
authors.forename: Salman
authors.initials: S
authors.lastname: Rosenwaks
authors.forename: Yehuda
authors.initials: Y
authors.lastname: Zeiri
authors.forename: Ronnie
authors.initials: R
authors.lastname: Kosloff
authors.forename: Ilana
authors.initials: I
authors.lastname: Bar
mesh_terms: D004583:Electrons; D006859:Hydrogen / Q000737:chemistry*; D008744:Methylamines / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D055668:Photochemical Processes; D011336:Probability; D011789:Quantum Theory; D013057:Spectrum Analysis; D014732:Vibration
chemical_list: D008744:Methylamines; D006859:Hydrogen; C027451:methylamine; D009584:Nitrogen