Why is cyclooctatetraene yellow in color?

Subject: Why is cyclooctatetraene yellow in color?

Date: Tue Apr 28 18:41:00 2009
Posted by Adam
Grade level: grad (science) School: Stanford University
City: Stanford State/Province: CA Country: No country entered.
Area of science: Chemistry
ID: 1240969260.Ch

Message:


Why is cyclooctatetraene yellow in color, and furthermore, why are several COTs
yellow, but some are colorless (see JACS 77, 4939).  Since there is none to
little conjugation of alkenes in the COT ground state, it would be expected that
COT is a colorless liquid instead.  Any explanations ?

Re: Why is cyclooctatetraene yellow in color?

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