Infrared Spectrum of Hydrogen Sulfide

The absorption of hydrogen sulfide has been investigated in the 8 μ region under high resolution. The absorption has been analyzed as a B‐type band and assigned as the (n1,n2,n3)=(0,1,0) band. The resulting inertial constants agree well with those predicted from previously analyzed bands. The best values of the constants for this band are, v0=1182.68 cm—1, A=10.724, B=9.211, C=4.670. The knowledge of this band center, together with previously determined frequencies, enable the evaluation of the constants in the quadratic expression for the vibrational energy. A second‐order resonance was found which arises from the near coincidence of the frequencies v1 and v3.

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