TY - JOUR
T1 - Analysis of the two-photon D1Δ-X1Σ+ transition in CO. 2. Perturbations in the (8-0) band
AU - Kittrell, Carter
AU - Le Floch, André C.
AU - Garetz, Bruce A.
PY - 1993
Y1 - 1993
N2 - Spin-orbit and rotation-electronic perturbations among the D1Δ(υ=8), A1Π(υ=6), d3Δ(υ=12), and a′3Σ+-(υ=17) levels have been observed in the two-photon laser excitation spectrum of the D1Δ-X1Σ+ (8-0) band of CO. To aid in the assignment of spectral lines, both prompt and delayed spectra were recorded, by gating the vacuum ultraviolet fluorescence. Spectra have been analyzed using a weighted nonlinear least-squares fitting method. Detailed assignments and wavenumbers are presented for the D-X (8-0), A-X (6-0), d-X (12-0), and a′-X (17-0) bands, as well as mixing coefficients for the D, A, and d states. Molecular constants and perturbation parameters have also been determined. Fluorescence lifetimes were obtained for some perturbed levels, and the effect of mixing on radiative and collisional decay is discussed.
AB - Spin-orbit and rotation-electronic perturbations among the D1Δ(υ=8), A1Π(υ=6), d3Δ(υ=12), and a′3Σ+-(υ=17) levels have been observed in the two-photon laser excitation spectrum of the D1Δ-X1Σ+ (8-0) band of CO. To aid in the assignment of spectral lines, both prompt and delayed spectra were recorded, by gating the vacuum ultraviolet fluorescence. Spectra have been analyzed using a weighted nonlinear least-squares fitting method. Detailed assignments and wavenumbers are presented for the D-X (8-0), A-X (6-0), d-X (12-0), and a′-X (17-0) bands, as well as mixing coefficients for the D, A, and d states. Molecular constants and perturbation parameters have also been determined. Fluorescence lifetimes were obtained for some perturbed levels, and the effect of mixing on radiative and collisional decay is discussed.
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U2 - 10.1021/j100112a024
DO - 10.1021/j100112a024
M3 - Article
AN - SCOPUS:0041928029
SN - 0022-3654
VL - 97
SP - 2221
EP - 2227
JO - Journal of physical chemistry
JF - Journal of physical chemistry
IS - 10
ER -