Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: abcc on November 25, 2006, 06:56:10 AM
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what is Evelyn effect ???
thx ;)
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From google search: "Background on the Evelyn Effect
David Todd, a professor at Pomona College, was dehydrating 2-methylcyclohexanol using an acid catalyst. As the product was distilling, he was interrupted by the department secretary. Out of curiosity, he collected the remaining distillate in a separate vial to see if the product composition differed from the earlier fraction. Using a gas chromatograph, he discovered that the product ratios varied as the reaction proceeded. The discovery was named after his secretary: The Evelyn Effect. The Evelyn Effect is defined as the phenomena in which the product ratios in a reaction change as the reaction proceeds."
Really interesting phenomena :)
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Hello abcc:
Check this link:
http://www.cachesoftware.com/teach/ (look at chapter or part 5, there you can find several pages
about Evelyn Effect)
or look at into the Journal of Chemical Education (1994) Vol 71, pag 440 a original paper of Evelyn Effect
by David Todd. ( http://jchemed.chem.wisc.edu/Journal/Issues/1994/May/index.html )
Regards,
Chiralic
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Huh. I'd never heard of that, but it does explain what one of my reactions was doing a while back.
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waaaaaaaaaa :o
very nice ;D
thxthxthxthx ;)
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Some time before i had similar "laboratory incident" with one charming secretary and the effect was similar to me ;) Wow i cant remember her name now :P