520. In the table below, for the corresponding problem number, the wave numbers of the fundamental tone V1 and the first overtone v2 of the vibrational spectrum of a diatomic gas are indicated. Determine from them the wave number of natural oscillations, the anharmonicity coefficient, the maximum quantum number and the dissociation energy D of one mole of a given substance.

task molecule V1,cm-1 v2,cm-1
520 3H37Cl 2087 4121

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