Physics
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008phrvl.100e6101a&link_type=abstract
Physical Review Letters, vol. 100, Issue 5, id. 056101
Physics
8
Adsorption/Desorption Kinetics, Thermal Desorption, Atomic, Molecular, And Chemical, And Grain Processes, Atomic, Molecular, Chemical, And Grain Processes
Scientific paper
Molecular hydrogen interaction on water ice surfaces is a major process taking place in interstellar dense clouds. By coupling laser detection and classical thermal desorption spectroscopy, it is possible to study the effect of rotation of D2 on adsorption on amorphous solid water ice surfaces. The desorption profiles of ortho- and para-D2 are different. This difference is due to a shift in the adsorption energy distribution of the two lowest rotational states. Molecules in J''=1 rotational state are on average more strongly bound to the ice surface than those in J''=0 rotational state. This energy difference is estimated to be 1.4±0.3meV. This value is in agreement with previous calculation and interpretation. The nonspherical wave function J''=1 has an interaction with the asymmetric part of the adsorption potential and contributes positively in the binding energy.
Amiaud L.
Dulieu Francois
Fillion Jean-Hugues
Lemaire Jean Louis
Matar Elie
No associations
LandOfFree
Measurement of the Adsorption Energy Difference between Ortho- and Para-D2 on an Amorphous Ice Surface does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurement of the Adsorption Energy Difference between Ortho- and Para-D2 on an Amorphous Ice Surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the Adsorption Energy Difference between Ortho- and Para-D2 on an Amorphous Ice Surface will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1529122