Azulene (structure model compound below) is proposed as a for an application of the particle-in-a-ring model. Assume radius R. to be 2.6 Å. Calculate the wavelength (in nm) of the lowest-energy electronic transition (HOMO to the LUMO) in azulene.

Azulene (structure model compound below) is proposed as a for an application of the particle-in-a-ring model. Assume radius R. to be 2.6 Å. Calculate the wavelength (in nm) of the lowest-energy electronic transition (HOMO to the LUMO) in azulene.

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 15.38E

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Question

Azulene (structure below) is proposed as a
model compound for an application of the
particle-in-a-ring model. Assume radius R, to
be 2.6 Å.
Calculate the wavelength (in nm) of the
lowest-energy electronic transition (HOMO
to the LUMO) in azulene.
a. 271 nm
b. 542 nm
c. 136 nm
d. 440 nm
e. 677 nm

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