World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

The Journal of Chemical Physics : Photodissociation dynamics of methyl formate at 193.3 nm: Branching ratios, kinetic-energy distributions, and angular anisotropies of products

By Shih-Huang Lee

Click here to view

Book Id: WPLBN0002169500
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 21 November 2008

Title: The Journal of Chemical Physics : Photodissociation dynamics of methyl formate at 193.3 nm: Branching ratios, kinetic-energy distributions, and angular anisotropies of products  
Author: Shih-Huang Lee
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

Lee, S. (n.d.). The Journal of Chemical Physics : Photodissociation dynamics of methyl formate at 193.3 nm: Branching ratios, kinetic-energy distributions, and angular anisotropies of products. Retrieved from http://worldebookfair.com/


Description
Description: We investigated the photodissociation dynamics of methyl formate-d (CH3OC(O)D) at 193.3 nm in a molecular-beam apparatus using undulator radiation as an ionization source. We measured kinetic-energy distributions, spatial angular anisotropies, and branching ratios of all photofragments. Fractions of energy release into product translation were calculated from the kinetic-energy distributions. Four primary dissociation pathways to asymptotes CH3O( 2E)+DCO( 2A′), CH3O( 2E)+DCO( 2A″), CH3OCO( 2A′)+D(2S), and CH3OD( 1A′)+CO(X 1Σ+) were identified; their branching ratios were determined to be 0.73, 0.06, 0.13, and 0.08, respectively. The former two dissociation paths were discernible in the time-of-flight spectra of fragment CH3O with a signal at m/z = 29. Nominal products DCO ( 2A″) and CH3OCO ( 2A′) were unobservable as DCO in state dissociated to D(2S)+CO(X 1Σ+) and internally hot CH3OCO ( 2A′) decomposed to CH3( 2A2″)+CO2( 1A1g). Products DCO and CH3O have angular anisotropy parameter β ≈ −0.37 but other products have nearly isotropic angular distributions with |β|<0.1. Nonadiabatic transitions might play an important role in fragmentation of methyl formate irradiated at 193.3 nm.

 

Click To View

Additional Books


  • Physics of Plasmas : Doppler spectroscop... Volume Issue : November 2008 (by )
  • Biblioteca Hispanica : the Wonders of Na... (by )
  • Chaos : Response to Comment on 'Synchron... Volume Issue : December 2008 (by )
  • Physics of Plasmas : High intensity, pla... Volume Issue : November 2008 (by )
  • Journal of Applied Physics : Optically d... Volume Issue : November 2008 (by )
  • The Journal of Chemical Physics : Quantu... Volume Issue : November 2008 (by )
  • Journal of Applied Physics : Influence o... Volume Issue : November 2008 (by )
  • Applied Physics Letters : Directing the ... Volume Issue : December 2008 (by )
  • Biblioteca Hispanica : Circular and Regu... (by )
  • Journal of Mathematical Physics : On the... Volume Issue : October 2008 (by )
  • Journal of Physical and Chemical Referen... Volume Issue : October 2008 (by )
  • Journal of Mathematical Physics : Symmet... Volume Issue : October 2008 (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair 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.