In the electronic absorption spectrum of a diatomic molecule, the vibration transition 40 ← 0 occurs. Indicate the states between which the transition occurs. Why is it expressed as 40 ← 0 and not as 0 → 40?

In the electronic absorption spectrum of a diatomic molecule, the vibration transition 40 ← 0 occurs. Indicate the states between which the transition occurs. Why is it expressed as 40 ← 0 and not as 0 → 40?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter20: Molecular Spectroscopy And Photochemistry

Section: Chapter Questions

Problem 51AP

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