The permanent electric dipole moments of WN and ReN and nuclear quadrupole interaction in ReN

Timothy Steimle, Wilton L. Virgo

Research output: Contribution to journalArticle

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Abstract

The high-resolution laser induced fluorescence spectra of tungsten mononitride WN and rhenium mononitride ReN have been recorded in a laser ablation/molecular beam spectrometer. The field free spectrum of the (0,0)A 4Π 3/2-X 4Σ 1/2 - band system of 186WN has been analyzed to produce B , B , and γ values of 0.4659(2), 0.4554(2), and 0.0518(1) cm -1, respectively. The permanent electric dipole moments μ for the X 4Σ 1/2 - and A 4Π 3/2 state were determined to be 3.77(18) and 2.45(3) D, respectively, from the analysis of the optical Stark effect. The (0,0)[26.0]0 +-X0 + band system of ReN was recorded in the presence of a variable static electric field. The ground and excited state electric dipole moments of 187ReN were determined to be μ(X0 +)=1.96(8)D and μ([26.0]0 +)=3.53(4)D. Splittings in the field free 187ReN spectrum were analyzed to produce 187Re(I=5/2) nuclear electric quadrupole coupling constants e 2Qq 0 of -0.0304(8) and 0.0328(9) cm -1 for the X0 + and [26.0]0 + states, respectively. A molecular orbital correlation model is used to interpret the observation and a comparison is made to CrN and MoN.

Original languageEnglish (US)
Pages (from-to)12411-12420
Number of pages10
JournalJournal of Chemical Physics
Volume121
Issue number24
DOIs
StatePublished - Dec 22 2004

Fingerprint

Electric dipole moments
electric moments
electric dipoles
dipole moments
quadrupoles
Rhenium
Stark effect
Tungsten
Molecular beams
Molecular orbitals
Laser ablation
Excited states
Ground state
Spectrometers
Fluorescence
Electric fields
rhenium
interactions
laser induced fluorescence
molecular beams

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

The permanent electric dipole moments of WN and ReN and nuclear quadrupole interaction in ReN. / Steimle, Timothy; Virgo, Wilton L.

In: Journal of Chemical Physics, Vol. 121, No. 24, 22.12.2004, p. 12411-12420.

Research output: Contribution to journalArticle

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