Predict the wavelength (in nm) of the lowest-energy electronic transition in the following polymethine ion, (CH3)2N+=CH-CH=CH-CH=CH-N(CH3)2. Assume C-N and C-C conjugated bond lengths to be equal to1.4Å. Please explain how you determine electron count, length, and homo/lomo for n values

Predict the wavelength (in nm) of the lowest-energy electronic transition in the following polymethine ion, (CH3)2N+=CH-CH=CH-CH=CH-N(CH3)2. Assume C-N and C-C conjugated bond lengths to be equal to1.4Å. Please explain how you determine electron count, length, and homo/lomo for n values

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 15.3E

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Question

1) Predict the wavelength (in nm) of the lowest-energy electronic transition in the following polymethine ion, (CH3)2N+=CH-CH=CH-CH=CH-N(CH3)2. Assume C-N and C-C conjugated bond lengths to be equal to1.4Å. Please explain how you determine electron count, length, and homo/lomo for n values

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