Fourier transform spectroscopy of chemiluminescence from the SrO A(1)Sigma(+)-X-1 Sigma(+) transition

H Z Li, R Skelton, C Focsa, B Pinchemel, P F Bernath

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The A(1)Sigma(+)-X(1)Sigma(+) chemiluminescence spectrum of SrO was observed using a Fourier transform spectrometer. SrO was produced in a Broida-type oven from the Sr + N2O reaction. A total of 75 bands from (SrO)-Sr-88, (SrO)-Sr-87, and (SrO)-Sr-86 were measured in the range of 7600-13 600 cm(-1) at a resolution of 0.04 cm(-1). The vibrational levels of the ground state were observed up to v(n) = 12 and over 10 000 rovibrational lines with J as high as 153 were analyzed at a precision of about 0.005 cm(-1) Significantly improved spectral constants for the ground state were obtained by representing the perturbed excited state by term values and by adding the known microwave data and infrared data to our fit. Strong perturbations were observed in the upper A state. The vibrational levels of the A(1)Sigma(+) state were measured up to v' = 8 and some new perturbations are reported. (C) 2000 Academic Press.

Original languageEnglish
Pages (from-to)188-195
Number of pages8
Issue number1
Publication statusPublished - Sept 2000


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