University of Leicester
Browse
SnIandPbI.pdf (1.12 MB)

The pure rotational spectra of the open-shell diatomic molecules PbI and SnI

Download (1.12 MB)
journal contribution
posted on 2016-03-07, 11:22 authored by Corey J. Evans, Lisa-Maria E. Needham, N. R. Walker, H. Köckert, D. P. Zaleski, S. L. Stephens
Pure rotational spectra of the ground electronic states of lead monoiodide and tin monoiodide have been measured using a chirped pulsed Fourier transform microwave spectrometer over the 7-18.5 GHz region for the first time. Each of PbI and SnI has a X (2)Π1/2 ground electronic state and may have a hyperfine structure that aids the determination of the electron electric dipole moment. For each species, pure rotational transitions of a number of different isotopologues and their excited vibrational states have been assigned and fitted. A multi-isotopologue Dunham-type analysis was carried out on both species producing values for Y01, Y02, Y11, and Y21, along with Λ-doubling constants, magnetic hyperfine constants and nuclear quadrupole coupling constants. The Born-Oppenheimer breakdown parameters for Pb have been evaluated and the parameter rationalized in terms of finite nuclear field effects. Analysis of the bond lengths and hyperfine interaction indicates that the bonding in both PbI and SnI is ionic in nature. Equilibrium bond lengths have been evaluated for both species.

History

Citation

Journal of Chemical Physics, 2015, 143 (24), 244309

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Chemistry

Version

  • VoR (Version of Record)

Published in

Journal of Chemical Physics

Publisher

American Institute of Physics (AIP)

issn

0021-9606

eissn

1089-7690

Copyright date

2015

Available date

2016-03-07

Publisher version

http://scitation.aip.org/content/aip/journal/jcp/143/24/10.1063/1.4938247

Language

en

Usage metrics

    University of Leicester Publications

    Categories

    Keywords

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC