Energy disposal and target effects in hyperthermal collisions of ferrocene molecular ions at surfaces

Autor:	H. W. Lee, R. G. Cooks, Heon Kang, D. E. Riederer, W. R. Cho, S. A. Miller
Rok vydání:	1994
Předmět:	Polyatomic ion General Engineering Inelastic collision Photochemistry Dissociation (chemistry) Ion chemistry.chemical_compound Ferrocene chemistry Fragmentation (mass spectrometry) Monolayer Mass spectrum Physical and Theoretical Chemistry Atomic physics Nuclear Experiment
Zdroj:	The Journal of Physical Chemistry. 98:245-251
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100052a041
Popis:	Ferrocene molecular ions undergo inelastic collisions at Si(100) and alkanethiol self-assembled monolayer surfaces (SAMs). Dissociation of the activated projectile follows its recoil from the surface; viz., surface-induced dissociation (SID) occurs by a two-step mechanism, and the fragmentation pattern is independent of the nature of the surface. On the other hand, the SID efficiency for collisions at the SAM surfaces is much greater than that for the Si(100) single-crystal surface as a result of a decrease in neutralization at the organic surfaces. The fragmentation pathways of a ferrocene molecular ion are elucidated as a function of collision energy and presented as energy-resolved mass spectra (ERMS) on the SAM and Si(100) surfaces
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e427551079f017fbcea82f9aadf3725 https://doi.org/10.1021/j100052a041 Zobrazit plný text záznamu