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

The A(1)Sigma(+)-X(1)Sigma(+) chemiluminescence spectrum of SrO was observe d 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, (Sr O)-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) Significant ly improved spectral constants for the ground state were obtained by repres enting the perturbed excited state by term values and by adding the known m icrowave data and infrared data to our fit. Strong perturbations were obser ved 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) 200 0 Academic Press.