Document Detail

Dissociative electron attachment to acetaldehyde, CH(3)CHO. A laboratory study using the velocity map imaging technique.
MedLine Citation:
PMID:  23212656     Owner:  NLM     Status:  Publisher    
A detailed experimental investigation of the dissociative electron attachment (DEA) process to acetaldehyde, CH(3)CHO is presented. To investigate this process we use a time of flight spectrometer coupled with the velocity slice imaging technique. DEA in CH(3)CHO is found to lead to the formation of CH(3)(-), O(-), OH(-), C(2)H(-), C(2)HO(-) and CH(3)CO(-) anionic products produced through scattering resonances in the electron energy range of 6 to 13 eV. Of these product ions only O(-) is formed with any measurable kinetic energy distribution indicating a two-body dissociation process. CH(3)CO(-), although formed with very low kinetic energy, shows anisotropy in the velocity slice image, indicating ejection of the H atom in the 180° direction with respect to the electron beam. The low kinetic energy distributions and absence of any anisotropy in the angular distributions of the other product ions indicate that they are formed through multiple fragmentation of the transient molecular negative ion. The angular distribution of O(-) is analysed in terms of the various partial waves.
Ewelina Szymańska; Vaibhav S Prabhudesai; Nigel J Mason; E Krishnakumar
Related Documents :
24679316 - Theoretical prediction and spectroscopic fingerprints of an orbital transition in cecu2...
25084916 - Vibrationally resolved high-resolution nexafs and xps spectra of phenanthrene and coron...
23249056 - Nonlinear dimensionality reduction for nonadiabatic dynamics: the influence of conical ...
23004166 - Onset of chaos and relaxation in isolated systems of interacting spins: energy shell ap...
19479896 - Reinterpretation of the uv spectrum of cytosine: only two electronic transitions?
25082696 - Quantum information. unconditional quantum teleportation between distant solid-state qu...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-5
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
The Open University, Department of Physical Sciences, Walton Hall, Milton Keynes, MK7 6AA, UK.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Characterization of human sclera barrier properties for transscleral delivery of bevacizumab and ran...
Next Document:  Hospital volume of percutaneous radiofrequency ablation is closely associated with treatment outcome...