0181728 - UFCH-W 20030162 RIV US eng J - Článek v odborném periodiku
Mair, C. - Herman, Zdeněk - Fedor, J. - Lezius, M. - Märk, T. D.
Surface Induced Dissociations and Reactions of Acetonitrile Monomer, Dimer and Trimer Ions.
Journal of Chemical Physics. Roč. 118, č. 3 (2003), s. 1479-1486. ISSN 0021-9606. E-ISSN 1089-7690
Grant CEP: GA ČR GA203/00/0632
Grant ostatní: Cooperation PST(AT) 2000-06
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: surface-induced * acetonitrile monomer * trimer ions
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
Impakt faktor: 2.950, rok: 2003

Dissociations and reactions induced by impact of acetonitrile monomer ions (CH3CN+, CD3CN+), dimer ions [(CH3CN)(2)(+), (CD3CN)(2)(+)] and trimer ions [(CD3CN)(3)(+)] on a hydrocarbon-covered stainless-steel surface were investigated over the projectile energy range of 3-70 eV. Both simple dissociations of the projectile ion and chemical reactions of H-atom transfer from the surface material (followed by dissociations of the protonated projectile ion formed) were observed for the monomer ions. Results obtained for the dimer ions (CD3CN)(2)(+) indicate the formation of the protonated acetonitrile ions via surface-induced reactions in two ways: (i) an intracluster ion-molecule reaction followed by dissociation to form CD3CND+, and (b) a hydrogen pick-up reaction from the surface material during the interaction of the dimer ion with the surface leading to CD3CNH+. A simple model based on the Brauman double-well potential-suggested earlier to explain the occurrence.
Trvalý link: http://hdl.handle.net/11104/0078255