Laser induced-fluorescence spectra of the 1-0 band of the A 3Φ4 - X3Φ4 transition of iridium monofluoride, IrF, have been obtained at near natural linewidth resolution using supersonic molecular beam techniques. The spectra show a complex, clearly resolved hyperfine structure which has significant contributions from the magnetic and quadrupole hyperfine terms in 193Ir and 191Ir, both with I = 3/2, and the fluorine magnetic hyperfine term (I = 1/2). The spectra of both 193IrF and 191IrF isotopologues have been assigned and analyzed. The hyperfine structure was interpreted with the aid of atomic hyperfine parameters, which were used to determine the configurational composition of the ground state and to estimate the individual molecular hyperfine parameters.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry