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Resonance Raman excitation profiles have been obtained for several non‐totally symmetric fundamentals (A2g and B2g or B2g of D4h symmetry) of Ni(II)‐porphin and some of their overtones in the region of the β absorption band using Ar and Kr ion laser exciting lines. Simulation calculations have been carried out for the observed profiles on the basis of Albrecht's formulation, and thereby vibronic coupling constants between the B and Q states have been evaluated.
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Kamisuki et al. (1976) studied this question.
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