title: Laser-initiated shuttling of a water molecule between H-bonding sites.
abstract: The two-step laser excitation scheme of stimulated emission pumping (SEP) induces shifts of a single water molecule between two remote hydrogen bonding sites on trans-formanilide. This reaction can be initiated by selective excitation of either isomer (CO-bound or NH-bound) with different SEP excitation wavelengths. Energy (E) thresholds for isomerization in both directions have been measured [796 wave numbers </= E(CO-->NH) </= 988 wave numbers and 750 wave numbers </= E(NH-->CO) </= 988 wave numbers], and the energy difference DE between the CO-bound and NH-bound isomers was extracted (-238 wave numbers </= DE </= +192 wave numbers).
authors.affiliation: Department of Chemistry, 560 Oval Drive, Purdue University, West Lafayette, IN 47907-2084, USA.
authors.forename: Jasper R
authors.initials: JR
authors.lastname: Clarkson
authors.forename: Esteban
authors.initials: E
authors.lastname: Baquero
authors.forename: V Alvin
authors.initials: VA
authors.lastname: Shubert
authors.forename: Evgeniy M
authors.initials: EM
authors.lastname: Myshakin
authors.forename: Kenneth D
authors.initials: KD
authors.lastname: Jordan
authors.forename: Timothy S
authors.initials: TS
authors.lastname: Zwier