The University of Southampton
University of Southampton Institutional Repository

A spectroscopic investigation of the ionisation and dissociation decay dynamics of Rydberg states of NO

A spectroscopic investigation of the ionisation and dissociation decay dynamics of Rydberg states of NO
A spectroscopic investigation of the ionisation and dissociation decay dynamics of Rydberg states of NO
Double-resonance spectroscopy has been employed to characterise the autoionising and predissociating Rydberg states of NO converging to the and levels of the X ground state of NO+. Below the lowest ionisation limit we monitor the formation of the N(2D) predissociation product and observe a spectrum dominated by the p( ) series, with smaller contributions from the p(2) and f(2) series. Many of the lineshapes can be fit to a simple Fano line profile. Upon vibrational excitation, a competing autoionisation channel is opened and we monitor the products of both the dissociation and ionization channels. The predissociation spectrum appears much more complex than the predissociation spectrum, with significant contributions from the p(0), f(2), p(2), s(1) and d(1) series. In contrast, the ionisation spectrum is dominated by the p(0) and f(2) Rydberg series, with much weaker contributions from s(1), d(1) and p(2) series. The lineshapes in the predissociation and autoionisation spectra are perturbed and cannot be fit to simple Fano line profiles. In some extreme cases, these perturbations result in the complete disappearance of peaks from either the autoionisation or predissociation spectrum.
0026-8976
1808-1815
Minns, R.S.
85280db4-c5a6-4a4c-82fe-75693c6a6045
Lazenby, D.T.C
d86a0f0a-de7b-44c3-8a0a-689b4027ac5f
Hall, F.H.J
63037b8c-3877-44a6-8c00-fae97ca2af10
Jones, N.J.A
bdcfae6d-bf58-46a8-b6a7-cd9adb42d75f
Patel, R.
ec08d4e1-fc72-4d22-9f47-2bc83a475b1c
Fielding, H.H.
02d57d59-c588-4c85-98de-cc74e7325649
Minns, R.S.
85280db4-c5a6-4a4c-82fe-75693c6a6045
Lazenby, D.T.C
d86a0f0a-de7b-44c3-8a0a-689b4027ac5f
Hall, F.H.J
63037b8c-3877-44a6-8c00-fae97ca2af10
Jones, N.J.A
bdcfae6d-bf58-46a8-b6a7-cd9adb42d75f
Patel, R.
ec08d4e1-fc72-4d22-9f47-2bc83a475b1c
Fielding, H.H.
02d57d59-c588-4c85-98de-cc74e7325649

Minns, R.S., Lazenby, D.T.C, Hall, F.H.J, Jones, N.J.A, Patel, R. and Fielding, H.H. (2014) A spectroscopic investigation of the ionisation and dissociation decay dynamics of Rydberg states of NO. Molecular Physics, 112 (13), 1808-1815. (doi:10.1080/00268976.2013.865809).

Record type: Article

Abstract

Double-resonance spectroscopy has been employed to characterise the autoionising and predissociating Rydberg states of NO converging to the and levels of the X ground state of NO+. Below the lowest ionisation limit we monitor the formation of the N(2D) predissociation product and observe a spectrum dominated by the p( ) series, with smaller contributions from the p(2) and f(2) series. Many of the lineshapes can be fit to a simple Fano line profile. Upon vibrational excitation, a competing autoionisation channel is opened and we monitor the products of both the dissociation and ionization channels. The predissociation spectrum appears much more complex than the predissociation spectrum, with significant contributions from the p(0), f(2), p(2), s(1) and d(1) series. In contrast, the ionisation spectrum is dominated by the p(0) and f(2) Rydberg series, with much weaker contributions from s(1), d(1) and p(2) series. The lineshapes in the predissociation and autoionisation spectra are perturbed and cannot be fit to simple Fano line profiles. In some extreme cases, these perturbations result in the complete disappearance of peaks from either the autoionisation or predissociation spectrum.

Text
00268976.2013.pdf - Version of Record
Restricted to Registered users only
Download (425kB)
Request a copy

More information

Accepted/In Press date: 2 December 2013
Published date: 24 January 2014
Organisations: Chemistry

Identifiers

Local EPrints ID: 367106
URI: http://eprints.soton.ac.uk/id/eprint/367106
ISSN: 0026-8976
PURE UUID: 275ebadd-8cf7-4710-b1f7-4ec0911184ea
ORCID for R.S. Minns: ORCID iD orcid.org/0000-0001-6775-2977

Catalogue record

Date deposited: 23 Jul 2014 16:39
Last modified: 20 Jul 2019 00:43

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×