Electronic spectra of positively charged carbon clusters - C 2 n (n = 6-14)

JT Buntine; MI Cotter; U Jacovella; C Liu; P Watkins; E Carrascosa; JN Bull; L Weston; G Muller; MS Scholz; EJ Bieske

Journal article

Electronic spectra of positively charged carbon clusters - C 2 n (n = 6-14)

JT Buntine, MI Cotter, U Jacovella, C Liu, P Watkins, E Carrascosa, JN Bull, L Weston, G Muller, MS Scholz, EJ Bieske

Journal of Chemical Physics | Published : 2021

DOI: 10.1063/5.0070502

Abstract

Electronic spectra are measured for mass-selected C2n+(n = 6-14) clusters over the visible and near-infrared spectral range through resonance enhanced photodissociation of clusters tagged with N2 molecules in a cryogenic ion trap. The carbon cluster cations are generated through laser ablation of a graphite disk and can be selected according to their collision cross section with He buffer gas and their mass prior to being trapped and spectroscopically probed. The data suggest that the C2n+(n = 6-14) clusters have monocyclic structures with bicyclic structures becoming more prevalent for C22+ and larger clusters. The C2n+ electronic spectra are dominated by an origin transition that shifts li..

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University of Melbourne Researchers

Evan Bieske Author

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Grants

Awarded by Australian Research Council

Funding Acknowledgements

This research was supported under the Australian Research Councils Discovery Project funding scheme (Project Nos. DP150101427 and DP160100474). U.J. and J.T.B. acknowledge support from the Swiss National Science Foundation (Grant No. P2EZP2_178429) and the Australian Research Training Program scheme, respectively. The authors wish to thank Richard Mathys of the Science Faculty Workshop for his valuable contributions to the design and construction of the apparatus used in this study.