The 3–0 band of the CO ``triplet'' system has been photographed under high resolution and a rotational analysis carried out. The upper state is shown to be 3Δ in agreement with electron‐configuration theory and not 3Π as indicated by previous work. The spin structure in the 3Δ state has been studied and the intensity distribution in the branches is discussed. Revised constants for the d3Δ state are given.

Topics
Electronic configuration
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© 1962 American Institute of Physics.
1962
American Institute of Physics
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