Počet záznamů: 1

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
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Ostatní články
Název	Surface Collisions of the Acetonitrile Molecular Ion: Evidence for Isomerization of CD3CN center dot+ to the Ketenimine Cation CD2=C=ND center dot+
Tvůrce(i)	Mair, C. (AT) Roithová, Jana (UFCH-W) Fedor, J. (SK) Lezius, M. (AT) Herman, Zdeněk (UFCH-W)_RID Märk, T. D. (AT)
Zdroj.dok.	International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806 223-224, 1/3 (2003), s. 279-290
Poč.str.	12 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	acetonitrile cation ; surface reactions ; isomerization
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
CEP	GA203/00/0632 GA ČR - Grantová agentura ČR
CEZ	AV0Z4040901 - UFCH-W
Anotace	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.+.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2004

Počet záznamů: 1