Acetylene; Dissociation; Electroionization; Photoionization; Coincidence; Kinetic energy
Abstract :
[en] The dissociative ionization of C2H2, C2D2 and C2HD is presented in this work. Excepting the H2+ formation, all dissociation channels are thoroughly investigated by electron impact. The translational energy distribution as a function of the impinging electron energy and the appearance energy as a function of the translational energy are measured for all fragment ions. KE versus AE diagrams are obtained and the isotope effect is examined. All observed thresholds are analyzed in detail and dissociation mechanisms are proposed. For the C2H+ ion the PIPECO technique has also been used. From these discussions the H-C2H, HC-CH and H-C2 binding energy values are proposed, i.e. 5.33+/-0.23 eV, 9.83+/0.10 eV and 5.44+/-0.40 eV respectively. The fragmentation path leading to C+, CH2+ and C2+ are discussed in terms of dissociation mechanisms involving the transient vinylidene structure of the molecular ion as an intermediate.
Research Center/Unit :
Laboratoire de Dynamique Moléculaire
Disciplines :
Chemistry
Author, co-author :
Locht, Robert ; Université de Liège - ULiège > Département de Chimie (Faculté des sciences) > Laboratoire de Dynamique Moléculaire (Sciences)
Servais, Christian ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Language :
English
Title :
How complex can be the Unimolecular Decomposition of a simple Molecule? The case of Acetylene. An Electron Impact and PIPECO Investigation.
Alternative titles :
[fr] Quelle est la complexité de la décomposition unimoléculaire d'une molécule simple? Le cas de l'Acétylene. Une étude par impact électronique et par PIPECO.
Publication date :
1996
Journal title :
Zeitschrift für Physikalische Chemie
ISSN :
0942-9352
eISSN :
2196-7156
Publisher :
Oldenburg Verlag, München, Germany
Special issue title :
Dedicated to Prof. Baumgärtel
Volume :
195
Pages :
153-179
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique FRFC - Fonds de la Recherche Fondamentale Collective
Commentary :
- PDF-version of Editor's Postprint available on request
- Version-pdf du tiré-à-part disponible sur demande
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
M. Davister and R. Locht, Chem. Phys. 189 (1994) 805 and references therein.
R. Locht and J. Schopman, Intern. J. Mass Spectrom. Ion Phys. 15 (1974) 361.
Ch. Servais and R. Locht, Intern. J. Mass Spectrom. Ion Processes, to be published.
I. Lindau, J. C. Helmer and J. Uebbing, Rev. Sci. Instrum. 44 (1973) 265.
A. Lofthus and P. H. Krupenie, J. Phys. Chem. Ref. Data 6 (1977) 113.
C. E. Moore, Ionization potentials and ionization limits derived from the analyses of optical spectra, NSRDS-NBS 34 (1970).
J. E. Reutt, L. S. Wang, J. E. Pollard, D. J. Trevor, Y. T. Lee and D. A. Shirley, J. Chem. Phys. 84 (1986) 3022.
J. N. Miller, Spectrosc. Intern. 3(3) (1991) 42;
J. N. Miller, Spectrosc. Intern. 3(4) (1991) 41;
J. N. Miller, Spectrosc. Intern. 3(5) (1991) 43.
R. Locht, J. Schopman, H. Wankenne and J. Momigny, Chem. Phys. 7 (1975) 393.
R. G. Cavell and D. A. Allison, J. Chem. Phys. 69 (1978) 159.
R. Locht, K. Hottmann and H. Baumgärtel, to be published.
R. S. Urdahl, Y. Bao and W. H. Jackson, Chem. Phys. Letters 178 (1991) 425.
G. Herzberg, Molecular spectra and molecular structure. Vol. 3. Electronic spectra of polyatomic molecules (Van Nostrand, Princeton 1967).
K. P. Huber and G. Herzberg, Molecular spectra and molecular structure. Vol. 4. Constants of diatomic molecules (Van Nostrand Reinhold, New York 1979).
H. Hotop and W. C. Lineberger; J. Phys. Chem. Ref. Data 14 (1985) 731.
K. M. Ervin, S. Gronert, S. E. Barlow, M. K. Gilles, A. G. Harrison, V. M. Bierbaum, C. H. DePuy, W. C. Lineberger and G. B. Ellison, J. Am. Chem. Soc. 112 (1990) 5750.
C. E. Moore, Atomic energy levels. Vol. 1. NSRDS-NBS Circ. 467 (USGPO, Washington D.C. 1949).
P. Kusch, A. Hustrulid and J. T. Tate, Phys. Rev. 52 (1937) 843.
H. Shiromura, Y. Achiba, K. Kimura and Y. T. Lee, J. Phys. Chem. 91 (1987) 17.
R. Locht, J. L. Olivier and J. Momigny, Chem. Phys. 43 (1979) 425.
S. Shih, S. D. Peyerimhoff and R. J. Buenker, J. Mol. Spectrosc. 64 (1977) 167.
S. Shih and S. D. Peyerimhoff, J. Mol. Spectrosc. 74 (1979) 124.
A. G. Koures and L. B. Harding, J. Phys. Chem. 95 (1991) 1035.
P. G. Carrick, A. J. Merer and R. F. Curl Jr., J. Chem. Phys. 78 (1983) 3652.
R. F. Curl Jr., P. G. Carrick and A. J. Merer, J. Chem. Phys. 83 (1985) 4278.
E. Somè, F. Remy, D. Macau-Hercot, I. Dubois, J. Breton and H. Bredohl, accepted in J. Mol. Spectrosc. (1995).
W. R. Graham, K. I. Dismuke and W. Weltner, J. Chem. Phys. 60 (1974) 3817.
G. Bieri and L. Åsbrink, J. Electron. Spectrosc. Relat. Phenom. 20 (1980) 149.
S. Svensson, E. Zdansky, U. Gelius and H. Ågren, Phys. Rev. A37 (1988) 4730.
J. Muller, R. Arneberg, H. Ågren, R. Manne, P. Å. Mannquist, S. Svensson and U. Gelius, J. Chem. Phys. 77 (1982) 4895.
S. R. Andrews, F. M. Harris and D. E. Parry, Chem. Phys. 166 (1992) 69.
T. Hayaishi, S. Iwata, M. Sasanuma, E. Ishiguro, Y. Morioka, Y. Iida and M. Nakamura, J. Phys. B15 (1982) 79.
Y. Ono and C. Y. Ng, J. Chem. Phys. 74 (1981) 6985.
K. M. Weitzel, J. Mähnert and M. Penno, Chem. Phys. Letters 224 (1994) 371.
K. Norwood and C. Y. Ng, J. Chem. Phys. 91 (1989) 2898.
P. Plessis and P. Marmet, Int. J. Mass Spectrom. Ion Processes 70 (1986) 23.
J. R. Wyatt and F. E. Stafford, J. Phys. Chem. 76 (1972) 1913.
B. K. Janousek and J. I. Brauman, J. Chem. Phys. 71 (1979) 2057.
M. Iraqi, A. Petrank, M. Peres and C. Lifshitz, Int. J. Mass Spectrom. Ion Processes 100 (1990) 679.
I. Dotan, M. Iraqi and C. Lifshitz, Int. J. Mass Spectrom. Ion Processes 124 (1993) R21.
P. G. Green, J. L. Kinsey and R. W. Field, J. Chem. Phys. 91 (1989) 5160.
Y. Chen, D. M. Jonas, C. E. Hamilton, P. G. Green, J. L. Kinsey and R. W. Field, Ber. Bunsenges. Phys. Chem. 92 (1983) 329.
M. Fuji, A. Haijima and M. Ito, Chem. Phys. Letters 150 (1988) 380.
R. Locht and J. Momigny, Chem. Phys. Letters 6 (1970) 273.
A. O'Keefe, R. Derai and M. T. Bowers, Chem. Phys. 91 (1984) 161.
W. Koch and G. Frenking, J. Chem. Phys. 93 (1990) 8021.
G. Cooper, T. Ibuki, Y. Iida and C. E. Brion, Chem. Phys. 125 (1988) 307.
J. Momigny and E. Derouane, Adv. Mass Spectrom. 4 (1967) 607.
S. W. Benson, J. Chem. Educat. 42 (1965) 502.
T. L. Cottrell, The strength of chemical bonds (Butterworth, 1958).
S. R. Langhoff, C. W. Bauschlicher and P. R. Taylor, Chem. Phys. Letters 180 (1991) 88.
G. Herzberg, Molecular spectra and molecular structure. Vol. 2. Spectra of diatomic molecules. (Von Nostrand, Princeton 1967).
R. Thissen, Ph. D. Thesis, Université de Liège (1992).
I. Shavitt, Tetrahedron 41 (1985) 1531.
P. Rosmus, P. Botschwina and J. P. Maier, Chem. Phys. Letters 84 (1981) 71.
C. W. Bauschlicher and S. R. Langhoff, Chem. Phys. Letters 173 (1990) 367.
C. Petrongolo, P. G. Bruna, S. D. Peyerimhoff and R. J. Buenker, J. Chem. Phys. 74 (1981) 4594.
P. Rosmus, H. J. Werner, E. A. Reinsch and M. Larsson, J. Electron Spectrosc. Relat. Phenom. 41 (1986) 289.
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.
