The Open UniversitySkip to content
 

Bond dissociation of the dipeptide dialanine and its derivative alanine anhydride induced by low energy electrons

Alizadeh, Elahe; Gschliesser, David; Bartl, Peter; Hager, Michaela; Edtbauer, Achim; Vizcaino, Violaine; Mauracher, Andreas; Probst, Michael; Märk, Tilmann D.; Ptasińska, Sylwia; Mason, Nigel; Denifl, Stephan and Scheier, Paul (2011). Bond dissociation of the dipeptide dialanine and its derivative alanine anhydride induced by low energy electrons. The Journal of Chemical Physics, 134(5) 054305.

Full text available as:
[img]
Preview
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (777kB)
URL: http://jcp.aip.org/resource/1/jcpsa6/v134/i5#
DOI (Digital Object Identifier) Link: https://doi.org/10.1063/1.3544217
Google Scholar: Look up in Google Scholar

Abstract

Dissociative electron attachment to dialanine and alanine anhydride has been studied in the gas phase utilizing a double focusing two sector field mass spectrometer. We show that low-energy electrons (i.e., electrons with kinetic energies from near zero up to 13 eV) attach to these molecules and subsequently dissociate to form a number of anionic fragments. Anion efficiency curves are recorded
for the most abundant anions by measuring the ion yield as a function of the incident electron energy. The present experiments show that as for single amino acids (M), e.g., glycine, alanine, valine, and proline, the dehydrogenated closed shell anion (M–H)− is the most dominant reaction product. The interpretation of the experiments is aided by quantum chemical calculations based on density functional theory, by which the electrostatic potential and molecular orbitals are calculated and the initial electron attachment process prior to dissociation is investigated

Item Type: Journal Item
Copyright Holders: 2010 American Institute of Physics
ISSN: 0021-9606
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Physics
Item ID: 28254
Depositing User: Astrid Peterkin
Date Deposited: 25 Mar 2011 09:20
Last Modified: 08 Dec 2018 04:23
URI: http://oro.open.ac.uk/id/eprint/28254
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU