World Library  

QR link for The Journal of Chemical Physics : Quantum-state resolved reactive scattering at the gas-liquid interface: F+squalane (C30H62) dynamics via high-resolution infrared absorption of nascent HF(v,J)
Add to Book Shelf
Flag as Inappropriate
Email this Book

The Journal of Chemical Physics : Quantum-state resolved reactive scattering at the gas-liquid interface: F+squalane (C30H62) dynamics via high-resolution infrared absorption of nascent HF(v,J)

By Alexander M. Zolot, Paul J. Dagdigian, and David J. Nesbitt

Click here to view

Book Id: WPLBN0002169522
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 19 November 2008

Title: The Journal of Chemical Physics : Quantum-state resolved reactive scattering at the gas-liquid interface: F+squalane (C30H62) dynamics via high-resolution infrared absorption of nascent HF(v,J)  
Author: Alexander M. Zolot, Paul J. Dagdigian, and David J. Nesbitt
Volume: Issue : November 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), The Journal of Chemical Physics Collection
Historic
Publication Date:
Publisher: American Institute of Physics

Citation

APA MLA Chicago

Zolot, Paul J. Dagdigian, And David J. Nesbit, A. M. (n.d.). The Journal of Chemical Physics : Quantum-state resolved reactive scattering at the gas-liquid interface: F+squalane (C30H62) dynamics via high-resolution infrared absorption of nascent HF(v,J). Retrieved from http://community.worldlibrary.net/


Description
Description: Exothermic chemical reaction dynamics at the gas-liquid interface have been investigated by colliding a supersonic beam of F atoms [Ecom = 0.7(3) kcal/mol] with a continuously refreshed liquid hydrocarbon (squalane) surface under high vacuum conditions. Absolute HF(v,J) product densities are determined by infrared laser absorption spectroscopy, with velocity distributions along the probe axis derived from high resolution Dopplerimetry. Nascent HF(v ⩽ 3) products are formed in a highly nonequilibrium (inverted) vibrational distribution [〈Evib〉 = 13.2(2) kcal/mol], reflecting insufficient time for complete thermal accommodation with the surface prior to desorption. Colder, but still non-Boltzmann, rotational state populations [〈Erot〉 = 1.0(1) kcal/mol] indicate that some fraction of molecules directly scatter into the gas phase without rotationally equilibrating with the surface. Nascent HF also recoils from the liquid surface with excess translational energy, resulting in Doppler broadened linewidths that increase systematically with internal HF excitation. The data are consistent with microscopic branching in HF-surface dynamics following the reactive event, with (i) a direct reactive scattering fraction of newly formed product molecules leaving the surface promptly and (ii) a trapping desorption fraction that accommodates rotationally (though still not vibrationally) with the bulk liquid. Comparison with analogous gas phase F+hydrocarbon processes reveals that the liquid acts as a partial “heat sink” for vibrational energy flow on the time scale of the chemical reaction event.

 

Click To View

Additional Books


  • Journal of Applied Physics : Synergic ef... Volume Issue : November 2008 (by )
  • Journal of Mathematical Physics : On com... Volume Issue : October 2008 (by )
  • Review of Scientific Instruments : A sen... Volume Issue : December 2008 (by )
  • Journal of Applied Physics : Low Schottk... Volume Issue : November 2008 (by )
  • The Journal of Chemical Physics : Magnet... Volume Issue : November 2008 (by )
  • The Journal of Chemical Physics : Interm... Volume Issue : November 2008 (by )
  • Physics of Fluids : Chaotic motions of a... Volume Issue : September 2008 (by )
  • Physics of Plasmas : A new fast reconnec... Volume Issue : November 2008 (by )
  • The Journal of Chemical Physics : Struct... Volume Issue : November 2008 (by )
  • Journal of Applied Physics : Propagation... Volume Issue : November 2008 (by )
  • Applied Physics Letters : Misfit strain…... Volume Issue : December 2008 (by )
  • Journal of Applied Physics : In situ pha... Volume Issue : November 2008 (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.