Talk:Functional group
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[edit] Category vs. Article
We have a functional_groups category aswell as this page but they seem to double up on most things... Not sure if thats supposed to be changed or not, anyone feel free to delete this if thats how its supposed ot be! Thx
The article sumerize all groups and allow to have a globale view of them. The category allow to group all the groups... it seems to me that both of them have a different function, so don't double --Lyndametref 01:47, 10 December 2005 (UTC)
[edit] Question
a Question: is phosphate (PO4) a fuctional group? is an acetyl (OCOCH3) a functional group?
Acetyl is usually considered as a special case of an ester, and things like phosphates and sulphates as salts of acids.
Kinases and phosphatases add and remove (kinases add and phosphatases remove) covalently bound phosphate groups from proteins. Those covalently bound groups are indeed functional groups.
Acetyl groups are not part of ethers, but rather, are part of esters. It just so happens that that the alcohol-derived component of the acetyl group is larger than the acid-derived component, and so gets nomenclature precedence, hence the need for something to call the smaller-two carbon bit.
Similarly, the non alkyl or non aromatic portion of a molecule may be bigger than the alkyl or aryl group, in which case the alkyl or aryl group is considered a functional group, eg N-methylmorpholine versus morpholine.
[edit] Trophic critera?
The first sentence talks about 'trophic criteria'. Can someone wikilink this to an article that explain the meaning of this term? ike9898 22:29, July 26, 2005 (UTC)
[edit] Missing functional groups
We are missing the folowing functional groups:
- phospho-
- sulfo-
- acyl halide
- sulfide
- sulfonium ion
- phosphine
[edit] Another question
what would be the name of such a functional group: R'O-CO-OR like in CR39 monomer. see link http://www.df.unibo.it/macro/intercast/charact.htm please email me (username:mireault).
If I understand your drawing correctly, this would be a carbonate. Hence, polycarbonate plastic. My eyeglasses, for instance, have polycarbonate lenses that have a high optical density (allowing a thinner, lighter lens) and good scratch resistance.--128.248.77.71 18:46, 29 August 2006 (UTC)
