Issue 9, 2024

Formation of negative ions from cobalt tricarbonyl nitrosyl Co(CO)3NO clusters

Abstract

Electron attachment and corresponding dissociative electron attachment (DEA) to cobalt tricarbonyl nitrosyl (Co(CO)3NO) clusters have been studied by co-expansion with Ar gas into a high vacuum. A monochromatic electron beam was utilized to generate negative ions and the resulting reaction products were identified using mass spectrometry. The ion fragments corresponding to Co(CO)3NO monomers closely resemble results from earlier gas phase experiments and studies conducted on Co(CO)3NO in He nanodroplets. However, contrary to the gas phase or He nanodroplet ion yields, a resonance structure comprising several peaks at energies above ∼4 eV was observed both in the case of molecular clusters [Co(CO)3NO]n (with n = 1, 2, 3) and clusters comprising DEA fragments. Additionally, the ion yields of numerous other clusters such as ions without nitrosyl ([Co(CO)4], [Co2(CO)5]), clusters consisting of two fragments such as ([Co2(CO)NO], [Co2(CO)(NO)2], [Co2(CO)2NO], [Co2(CO)2(NO)2], [Co3(CO)(NO)3], [Co3(CO)8(NO)3], [Co3(CO)(NO)2], [Co3(CO)3(NO)2], and [Co3(CO)5(NO)2]) were recorded. Moreover, N[double bond, length as m-dash]O bond dissociation was confirmed with the [Co(CO)2N]ion and with N- or O-retaining cluster ions, such as [Co2(CO)(NO)N], [Co2(CO)2(NO)N], [Co3(CO)2(NO)N], [Co3(CO)3(NO)N] and [Co3(CO)(NO)2N], or [Co2(CO)2O], [Co2(CO)3O], [Co3(CO)3O], [Co3(CO)4O]and [Co3(CO)2(NO)O] respectively.

Graphical abstract: Formation of negative ions from cobalt tricarbonyl nitrosyl Co(CO)3NO clusters

Supplementary files

Article information

Article type
Paper
Submitted
17 noy 2023
Accepted
31 yan 2024
First published
01 fev 2024

Phys. Chem. Chem. Phys., 2024,26, 7522-7533

Formation of negative ions from cobalt tricarbonyl nitrosyl Co(CO)3NO clusters

D. Mészáros, Š. Matejčík and P. Papp, Phys. Chem. Chem. Phys., 2024, 26, 7522 DOI: 10.1039/D3CP05601E

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