Browse by author
Lookup NU author(s): Dr Nick WalkerORCiD, Dr Daniel Zaleski, Dr Su 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 2Π1/2 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
Author(s): Evans CJ, Dickens L-M.E, Walker NR, Köckert H-J, Zaleski DP, Stephens SL
Publication type: Article
Publication status: Published
Journal: Journal of Chemical Physics
Year: 2015
Volume: 143
Issue: 24
Print publication date: 28/12/2015
Online publication date: 28/12/2015
Acceptance date: 02/10/2015
Date deposited: 04/01/2016
ISSN (print): 0021-9606
ISSN (electronic): 1089-7690
Publisher: AIP Publishing LLC
URL: http://dx.doi.org/10.1063/1.4938247
DOI: 10.1063/1.4938247
Altmetrics provided by Altmetric