A Vibrational Rotational Strength of Extraordinary Intensity. Azidomethemoglobin A
The asymmetric stretching vibration of the N3 - group in azidomethemoglobin A (azidometHb A) exhibits a vibrational circular dichroism (VCD) band (Fig. 1) of extraordinary and unprecedented intensity. Its rotational strength is three orders of magnitude greater than any heretofore noted. Integration of the VCD band gives a vibrational rotational strength (per tetramer) of 3 × 10 -40 (esu cm)2, a value typical for the electronic rotational strengths associated with the n → π* transition in saturated ketones.
KeywordsLone Pair Infrared Transmission Vibrational Circular Dichroism Rotational Strength Infrared Transmission Spectrum
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References and Notes
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