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, CHmN2+ or CHmN4+, were determined for mixtures with different molecular ratios of CH4. 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. (C) 2014 AIP Publishing LLC.
Monocarbon cationic cluster yields from N-2/CH4 mixtures embedded in He nanodroplets and their calculated binding energies / Tolbatov, I; Bartl, Peter; Yurkovich, James; Scheier, Paul; Chipman Daniel, M.; Denifl, Stephan; Ptasinska, Sylwia. - In: THE JOURNAL OF CHEMICAL PHYSICS. - ISSN 0021-9606. - 140:3(2014). [10.1063/1.4861663]
Monocarbon cationic cluster yields from N-2/CH4 mixtures embedded in He nanodroplets and their calculated binding energies
Tolbatov I;
2014-01-01
Abstract
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, CHmN2+ or CHmN4+, were determined for mixtures with different molecular ratios of CH4. 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. (C) 2014 AIP Publishing LLC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
