K Graupner et al 2006 New J. Phys. 8 117 doi:10.1088/1367-2630/8/7/117
Dissociative electron attachment to HCCCN
K Graupner1, T L Merrigan1, T A Field1,3, T G A Youngs1 and P C Marr2
Show affiliationsDissociative electron attachment to cyanoacetylene (propiolonitrile) HCCCN has been observed in the electron energy range 0–12 eV. Negative ions are formed in two main bands with maxima at ~1.6 eV (CCCN−) and ~5.3 eV (CCCN−, CN−, HCC− and CC−). There are also weaker resonances which lead to dissociative electron attachment to form CN−, HCC− and CC− with a maximum intensity at ~8.1 eV and CCCN−, CN− and CC− at ~11.2 eV. A trace of CCN− is observed at ~9.1 eV. The positions of the main dissociative attachment bands observed are close to positions of π* resonances recently calculated by Sommerfeld and Knecht. Calculations have also been performed in this work, which confirm the position of the π* orbitals. The electron affinity of the CCCN radical is determined as 4.59±0.25 eV from the threshold for CCCN− formation at 1.32±0.15 eV. Dissociative electron attachment to this molecule will act as a source of negative ions in extraterrestrial environments where electrons are present with more than 1.3 eV energy.
- PACS
-
34.80.Ht Dissociation and dissociative attachment
82.30.Lp Decomposition reactions (pyrolysis, dissociation, and fragmentation)
33.15.Fm Bond strengths, dissociation energies
33.15.Ry Ionization potentials, electron affinities, molecular core binding energy
- Subjects
- Dates
-
Issue 7 (July 2006)
Received 28 February 2006
Published 20 July 2006
-
Dissociative electron attachment to HCCCN
K Graupner et al 2006 New J. Phys. 8 117
-
Ab initio study of resonant dissociative recombination of He2+
J Royal and A E Orel 2005 J. Phys.: Conf. Ser. 4 177
-
Ground to satellite secure key exchange using quantum cryptography
J G Rarity et al 2002 New J. Phys. 4 82
-
Green functions for topology change
Jérôme Martin et al JHEP03(2005)060
-
A phenomenological approach to the simulation of metabolism and proliferation dynamics of large tumour cell populations
Roberto Chignola and Edoardo Milotti 2005 Phys. Biol. 2 8
-
On the (de)focusing nature of wall impedances for hadron beams in circular accelerators and storage rings
H Schamel and A Luque 2004 New J. Phys. 6 113
-
Damping of Coronal Loop Oscillations: Calculation of Resonantly Damped Kink Oscillations of One-dimensional Nonuniform Loops
T. Van Doorsselaere et al. 2004 ApJ 606 1223
-
Warped supersymmetry breaking
C.P. Burgess et al JHEP04(2008)053
-
Driving atoms into decoherence-free states
Almut Beige et al 2000 New J. Phys. 2 22
-
Comparative analysis of rigidity across protein families
S A Wells et al 2009 Phys. Biol. 6 046005