Thea1Δ(a2) →X3Σ−(X21) Transitions of SbH and SbD

Infrared and near infrared emission spectra of SbH and SbD

“…The new constants have a higher precision and are more extensive than the previous work. They agree reasonably well with the constants of Fink and coworkers [7,8], but less well with those of Urban et al [6]. In fact it is a surprise that the constants of SbH reported by Urban et al [6] are even in modest agreement with our results because their line positions for the 0 + component differ substantially from our measurements.…”

“…) for the X 3 R À , a 1 (12) --c v À0.23922 (15) À0.23994 (18) À0.19332 (15) À0.19402 (18) À0.14481 (18) À0.14535 (21) À0 (91) 15202.3132 (10) 15202.1937 (12) 17014.4636 (16) 17014.2371 (21) B v 5.717920 (11) 5.717218 (13) 5.561834 (16) 5.561165 ( ported by Beutel et al [7]. For 121 SbD and 123 SbD, the data sets included the X 3 R À ground state infrared data reported by Urban et al [6], the b 1 R + -X 3 R À transition observed in our work, and the a 1 D-X 3 R À transition reported by Beutel et al [7].…”

“…For 121 SbD and 123 SbD, the data sets included the X 3 R À ground state infrared data reported by Urban et al [6], the b 1 R + -X 3 R À transition observed in our work, and the a 1 D-X 3 R À transition reported by Beutel et al [7]. In these fits, the data for the b 1 R + -X 3 R À and a 1 D-X 3 R À transitions were almost identical for the 121 SbH/ 123 SbH and 121 SbD/ 123 SbD pairs except for a few high J lines with resolved Sb isotopic splitting.…”

“…Constants a Fitted to the X 3 R À state infrared data reported by Urban et al [6], the b 1 R + -X 3 R À transition observed in our experiment, and the a 1 D-X 3 R À transition reported by Beutel et al [7]. Table 3 Spectroscopic constants (in cm À1 ) for the X 3 R À and b 1 R + states of SbD while the systematic trend remained for the unresolved low J lines.…”

“…Improved spectroscopic constants for the X 3 R À ground state of SbD were obtained by Urban et al [6] in their study of the fundamental bands and the 2-1 hot bands of SbH and SbD with a tunable diode laser. Recently, Beutel et al [7] measured the 0-0 and 1-1 bands of the a 1 D-X 3 R À transitions of SbH and SbD with a Fourier transform spectrometer. Shestakov et al [8] studied the b 1 R + -X 3 R À transitions of SbH and SbD by pulsed laser excitation spectroscopy.…”