Journal article
Single-Photon, Double Photodetachment of Nickel Phthalocyanine Tetrasulfonic Acid 4- Anions
S Daly, M Girod, M Vojkovic, A Giuliani, R Antoine, L Nahon, RAJ O'Hair, P Dugourd
Journal of Physical Chemistry Letters | AMER CHEMICAL SOC | Published : 2016
Abstract
Single-photon, two-electron photodetachment from nickel phthalocyanine tetrasulfonic acid tetra anions, [NiPc]4-, was examined in the gas-phase using a linear ion trap coupled to the DESIRS VUV beamline of the SOLEIL Synchrotron. This system was chosen since it has a low detachment energy, known charge localization, and well-defined geometrical and electronic structures. A threshold for two-electron loss is observed at 10.2 eV, around 1 eV lower than previously observed double detachment thresholds on multiple charged protein anions. The photodetachment energy of [NiPc]4- has been previously determined to be 3.5 eV and the photodetachment energy of [NiPc]3-• is determined in this work to be ..
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Awarded by European Commission
Funding Acknowledgements
R.A.J.O. thanks the Australian Research Council for financial support (DP150101388), and, via the ARC CoE for Free Radical Chemistry and Biotechnology, The Universite de Lyon for a visiting Professorship, and the School of Chemistry at the University of Melbourne for a short-term study leave. SOLEIL support is acknowledged under project no. 20121299. We also thank the general technical staff of SOLEIL for running the facility, in particular J.-F. Gil for technical help on DESIRS. The research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013 Grant Agreement No. 320659).