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Surface Collisions of the Acetonitrile Molecular Ion: Evidence for Isomerization of CD3CN center dot+ to the Ketenimine Cation CD2=C=ND center dot+

SYSNO ASEP	0181592
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Surface Collisions of the Acetonitrile Molecular Ion: Evidence for Isomerization of CD3CN center dot+ to the Ketenimine Cation CD2=C=ND center dot+
Author(s)	Mair, C. (AT) Roithová, Jana (UFCH-W) Fedor, J. (SK) Lezius, M. (AT) Herman, Zdeněk (UFCH-W)_RID Märk, T. D. (AT)
Source Title	International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806 223-224, 1/3 (2003), s. 279-290
Number of pages	12 s.
Language	eng - English
Country	NL - Netherlands
Keywords	acetonitrile cation ; surface reactions ; isomerization
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	GA203/00/0632 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z4040901 - UFCH-W
Annotation	Reactions induced by the impact of acetonitrile and deuterated acetonitrile molecular ions on a hydrocarbon-covered stainless steel surface were investigated using a recently constructed tandem mass spectrometer (BESTOF). Mass spectra of product ions formed were recorded for projectile collision energies in the range of about 5-70 eV. Both, simple dissociations of the projectile ion and chemical reactions involving H-atom transfer from the surface material (followed by subsequent dissociation of the protonated projectile ion formed) were observed. In particular, formation of CD2H+ and CD3+ via dissociation of the surface-protonated deuterated acetonitrile ion CD3CNH+ and the collision energy dependence of their relative abundance indicate substantial degree of isomerization of the acetonitrile molecular radical cation CD3CN.+ to the ketenimine ion CD2=C=ND.+.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2004

Number of the records: 1