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Issue 17, 2013
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Resonance enhanced multiphoton ionization spectroscopy of NHD2via the [B with combining tilde]1E′′-state

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Abstract

Rotational analysis of the (2 + 1) resonance enhanced multiphoton ionization (REMPI) spectrum of the [B with combining tilde]1E′′ Rydberg state of the ammonia isotopologue NHD2 is reported. While the electronic degeneracy is lifted in NHD2 the splitting is small enough that interactions between the two states must be considered, particularly to model the intensity of the transitions. A simple model is developed to account for these interactions, relating them to terms present in the symmetric isotopologues. Spectroscopic parameters for the zero point and (ν2′ = 1–6) vibrational levels of the B 1E′′ state have been derived using this model and the spectra are accurately simulated for the first time using the PGOPHER program. The current work provides the basis for on-going velocity map imaging studies of rotational energy transfer in the mixed isotopologues of ammonia.

Graphical abstract: Resonance enhanced multiphoton ionization spectroscopy of NHD2via the  [[B with combining tilde]] 1E′′-state

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Publication details

The article was received on 02 Jan 2013, accepted on 13 Mar 2013 and first published on 15 Mar 2013


Article type: Paper
DOI: 10.1039/C3CP00012E
Citation: Phys. Chem. Chem. Phys., 2013,15, 6390-6399
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    Resonance enhanced multiphoton ionization spectroscopy of NHD2via the [B with combining tilde]1E′′-state

    C. Yang, G. Sarma, A. K. Saha, D. H. Parker and C. M. Western, Phys. Chem. Chem. Phys., 2013, 15, 6390
    DOI: 10.1039/C3CP00012E

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