Low energy ion-molecule reactions and chemiionization kinetics

Technical Report · Wed Sep 25 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/5998402· OSTI ID:5998402

Farrar, J M

Our research program is devoted to understanding the dynamics of elementary ionic collisions at the level of the underlying potential surface by measuring energy and angular distributions of reactively scattered products with crossed beam methods over the relative center-of-mass energy range from 0.3 to several eV. We have performed reactive and non-reactive scattering studies on the proton and hydrogen atom transfer systems listed below: O + NH{sub 3} {yields} OH + NH{sub 2} {delta}H = {minus}0.2 eV O + H{sub 2}O {yields} OH + OH {delta}H = +0.4 eV. In both of these systems, the reactions are hypothesized to occur on potential energy surfaces having two minima. The first minimum corresponds to the formation of an electrostatically bound complex, e.g., O(H{sub 2}O), followed by an intramolecular hydrogen atom/proton transfer to yield OH{center dot}OH, which may then form the products by cleavage of the complex.

• Research Organization: Rochester Univ., NY (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-88ER13849
• OSTI ID: 5998402
• Report Number(s): DOE/ER/13849-4; ON: DE92005083
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMMONIA
MOLECULAR BEAMS
COLLIDING BEAMS
ION-MOLECULE COLLISIONS
WATER
CHEMICAL REACTION KINETICS
DEGREES OF FREEDOM
EXCITED STATES
OXYGEN 16 BEAMS
PROGRESS REPORT
REACTION INTERMEDIATES
BEAMS
COLLISIONS
DOCUMENT TYPES
ENERGY LEVELS
HYDRIDES
HYDROGEN COMPOUNDS
ION BEAMS
ION COLLISIONS
KINETICS
MOLECULE COLLISIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXYGEN COMPOUNDS
REACTION KINETICS
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)
400201 - Chemical & Physicochemical Properties