ClO2 is a nonlinear molecule with one unpaired electron. The ground-state has a B1 symmetry. The molecule has been trapped (immobilized) in a solid matrix, lying in the yz plane. Its electronic absorption spectrum showed an allowed transition when using light polarized in the y-direction. To what electronic state was the molecule excited? Justify your answer.

ClO2 is a nonlinear molecule with one unpaired electron. The ground-state has a B1 symmetry. The molecule has been trapped (immobilized) in a solid matrix, lying in the yz plane. Its electronic absorption spectrum showed an allowed transition when using light polarized in the y-direction. To what electronic state was the molecule excited? Justify your answer.

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter15: Introduction To Electronic Spectroscopy And Structure

Section: Chapter Questions

Problem 15.56E

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Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.

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