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Negative Ion Photoelectron Spectroscopy of P₂N₃⁻: Electron Affinity and Electronic Structures of P₂N₃˙

Author(s)
Hou, Gao-Lei; Chen, Bo; Hrovat, David A.; Borden, Weston Thatcher; Wang, Xue-Bin; Transue, Wesley; Cummins, Christopher C; ... Show more Show less
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Abstract
We report here a negative ion photoelectron spectroscopy (NIPES) and ab initio study of the recently synthesized planar aromatic inorganic ion P₂N₃⁻, to investigate the electronic structures of P₂N₃⁻ and its neutral P₂N₃ radical. The adiabatic detachment energy of P₂N₃⁻ (electron affinity of P₂N₃) was determined to be 3.765 ± 0.010 eV, indicating high stability for the P₂N₃⁻ anion. Ab initio electronic structure calculations reveal the existence of five, low-lying, electronic states in the neutral P₂N₃ radical. Calculation of the Franck-Condon factors (FCFs) for each anion-to-neutral electronic transition and comparison of the resulting simulated NIPE spectrum with the vibrational structure in the observed spectrum allows the first four excited states of P₂N₃ to be determined to lie 6.2, 6.7, 11.5, and 22.8 kcal mol⁻¹ above the ground state of the radical, which is found to be a 6π-electron, ²A₁, σ state.
Date issued
2016-04
URI
http://hdl.handle.net/1721.1/113224
Department
Massachusetts Institute of Technology. Department of Chemistry
Journal
Chemical Science
Publisher
Royal Society of Chemistry (RSC)
Citation
Hou, Gao-Lei et al. “Negative Ion Photoelectron Spectroscopy of P₂N₃⁻: Electron Affinity and Electronic Structures of P₂N₃˙.” Chemical Science 7, 7 (2016): 4667–4675 © 2016 The Royal Society of Chemistry
Version: Final published version
ISSN
2041-6520
2041-6539

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