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Topic: Ring Residue?  (Read 14221 times)

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Offline Charles Furman

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Ring Residue?
« on: May 22, 2015, 06:14:42 PM »
What does it mean Ring Residue in UV spectroscopy? and How can I know it?

Offline Corribus

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Re: Ring Residue?
« Reply #1 on: May 23, 2015, 02:02:23 AM »
It's occasionally encountered in the context of empirical methods to predict the absorption properties, particularly the maximum absorbance wavelength, of conjugated organic molecules. Essentially, it refers to an alkyl or other similar substituent that impacts the UV-Vis spectrum of a molecule. I imagine there's some historical reason why it's called a residue, but someone else will have to enlighten us on that score.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

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