Monocarbon cationic cluster yields from N{sub 2}/CH{sub 4} mixtures embedded in He nanodroplets and their calculated binding energies

Journal Article · Tue Jan 21 00:00:00 EST 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4861663· OSTI ID:22255262

Tolbatov, Iogann; Ptasinska, Sylwia ^[1]; Bartl, Peter; Scheier, Paul; Denifl, Stephan ^[2]; Yurkovich, James; Chipman, Daniel M. ^[1]

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1. Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
2. Institut für Ionenphysik und Angewandte Physik and Center of Molecular Biosciences Innsbruck, Universität Innsbruck, Technikerstraße 25, A-6020 Innsbruck (Austria)

The formation of monocarbon cluster ions has been investigated by electron ionization mass spectrometry of cold helium nanodroplets doped with nitrogen/methane mixtures. Ion yields for two groups of clusters, CH{sub m}N{sub 2}{sup +} or CH{sub m}N{sub 4}{sup +}, were determined for mixtures with different molecular ratios of CH{sub 4}. The possible geometrical structures of these clusters were analyzed using electronic structure computations. Little correlation between the ion yields and the associated binding energies has been observed indicating that in most cases kinetic control is more important than thermodynamic control for forming the clusters.

• OSTI ID: 22255262
• Journal Information: Journal of Chemical Physics, Vol. 140, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BINDING ENERGY
CALCULATION METHODS
CONTROL
DOPED MATERIALS
ELECTRONIC STRUCTURE
ELECTRONS
HELIUM
ION PAIRS
IONIZATION
MASS SPECTROSCOPY
METHANE
MIXTURES
NITROGEN