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Title: Spectroscopy and picosecond dynamics of aqueous NO{sub 2}

We investigate the formation of aqueous nitrogen dioxide, NO{sub 2} formed through femtosecond photolysis of nitrate, NO{sub 3}{sup −}(aq) and nitromethane CH{sub 3}NO{sub 2}(aq). Common to the experiments is the observation of a strong induced absorption at 1610 ± 10 cm{sup −1}, assigned to the asymmetric stretch vibration in the ground state of NO{sub 2}. This assignment is substantiated through isotope experiments substituting {sup 14}N by {sup 15}N, experiments at different pH values, and by theoretical calculations and simulations of NO{sub 2}–D{sub 2}O clusters.
Authors:
; ; ; ; ;  [1] ; ;  [2]
  1. Department of Chemistry, Aarhus University, Langelandsgade 140, DK 8000 Aarhus C (Denmark)
  2. Department of Physics, Albanova University Center, Stockholm University, S-106 91 Stockholm (Sweden)
Publication Date:
OSTI Identifier:
22420027
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 141; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION; ALLOCATIONS; GROUND STATES; NITROGEN 14; NITROGEN 15; NITROGEN DIOXIDE; NITROMETHANE; PHOTOLYSIS; SIMULATION; SPECTROSCOPY