Question 16 The molecular orbital diagram on the left shows the frontier molecular orbitals for cyclobutadiene (a rare example of an organic compound with a triplet ground state electronic configuration). Based on your knowledge of the molecular symmetry and of selection rules: Determine the point group for cyclobutadiene Determine the symmetry labels for the molecular orbitals 11, 12/3, and t4. b) c) Determine if any of the electronic transitions below are Laporte allowed T2/3 → T4
Question 16 The molecular orbital diagram on the left shows the frontier molecular orbitals for cyclobutadiene (a rare example of an organic compound with a triplet ground state electronic configuration). Based on your knowledge of the molecular symmetry and of selection rules: Determine the point group for cyclobutadiene Determine the symmetry labels for the molecular orbitals 11, 12/3, and t4. b) c) Determine if any of the electronic transitions below are Laporte allowed T2/3 → T4
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Point group:
Symmetry labels:
Orbital
T 2/3
Symmetry label
Fill in the table below to determine the symmetry labels in the table above:
if you need extra space use a blank page.
Symmetry operations
Orbital
The electronic transition 1→ T4 is
according the Laporte selection rule.
according the Laporte selection rule.
The electronic transition TT2/3 → T4
is
Transcribed Image Text:Question 16
The molecular orbital diagram on the left shows the frontier
molecular orbitals for cyclobutadiene (a rare example of an
organic compound with a triplet ground state electronic
configuration).
Based on your knowledge of the molecular symmetry and of
selection rules:
a)
b)
Determine the point group for cyclobutadiene
Determine the symmetry labels for the molecular
IT1, T 2/3, and T4.
c)
Determine if any of the electronic transitions below
are Laporte allowed
TT → T4
IT2/3 → T4
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