P11C.15 The rotational constant for a diatomic molecule in the vibrational state with quantum number v typically fits the expression B, = B,- a(v+}), where B, is the rotational constant corresponding to the equilibrium bond length. For the interhalogen molecule IF it is found that B, = 0.279 71 cm and a = 0.187 m (note the change of units). Calculate B, and B, and use these values to calculate the wavenumbers of the transitions originating from J= 3 of the P and R branches. You will need the following additional information: v = 610.258 cm and x,ỹ = 3.141 cm. Estimate the dissociation energy of the IF molecule.

P11C.15 The rotational constant for a diatomic molecule in the vibrational state with quantum number v typically fits the expression B, = B,- a(v+}), where B, is the rotational constant corresponding to the equilibrium bond length. For the interhalogen molecule IF it is found that B, = 0.279 71 cm and a = 0.187 m (note the change of units). Calculate B, and B, and use these values to calculate the wavenumbers of the transitions originating from J= 3 of the P and R branches. You will need the following additional information: v = 610.258 cm and x,ỹ = 3.141 cm. Estimate the dissociation energy of the IF molecule.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter11: Molecular Structure

Section: Chapter Questions

Problem 14P

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