Talk:Phenylmagnesium bromide

Untitled

I inserted a new drawing. If the community finds the PhMgBr drawing to be more instructive, that's okay with me. Nice report!--Smokefoot 03:59, 28 October 2006 (UTC)

I think this version makes the role of ether/THF much clearer. Tweaked the language a bit to make it fit better. Thanks for the compliment! --Rifleman 82 06:36, 28 October 2006 (UTC)

Error on Page: Diethyl ether is NOT a polar solvent. Acetone/DMF/EtOH/H20 are polar. Mattybhoy 69 (talk) 09:41, 8 May 2008 (UTC)

I think I put that there, and I would still characterize ether as a polar solvent. Relatively polar, at the very least. Polarity is relative, and I was thinking about it in comparison with non-polar solvents like benzene, toluene, hexane. A certain amount of polarity will be needed to solvate the Grignard reagent; the O on ether or THF will do. --Rifleman 82 (talk) 13:12, 8 May 2008 (UTC)

Recent additions to "preparation"

Hi 60.240.77.211, thanks for your recent contributions. I am concerned, though, that we are straying into the cookbook chemistry area, which is not desirable WP:NOT#MANUAL. Would you like to try amend it?

Secondly, polarity is relative, (as in the above discussion). A non-polar solvent IMHO would be something like hexane; in comparison, ether and THF *are* polar. I want to emphasize this bit because hexane won't solvate your magnesium. --Rifleman 82 (talk) 17:05, 3 September 2008 (UTC)

I reverted the entire addition, with no intention of offending the well-intentioned work by 60.240.77.211. The suggested edits are tempting since so many students conduct this synthesis. But wikipedia is an encyclopedia, not a recipebook or a advice manual, as explained above. The content from 60.240.77.211, which includes much helpful advice, would however be very welcome in the wiki-textbook area http://en.wikibooks.org/wiki/Organic_Chemistry.

--Smokefoot (talk) 17:19, 3 September 2008 (UTC)

Images

Error on Page-The drawing is wrong. It shows ether groups on the structure. This is not the case. —Preceding unsigned comment added by 68.177.145.115 (talk) 18:25, 20 February 2009 (UTC)

The drawings are not wrong per se, they show the structure of the diethyl ether complex of PhMgBr, which is a common form of the substance. This complex is the only form of PhMgBr for which I could locate a crystal structure determination: J. Am. Chem. Soc. (1964) 86, 4825-4830. It does exist, and is

probably more representative of the structure of the compound in its common forms than a solvent-free structure would be.

The Image should be labeled as a variant of the compound, since the image does not agree with the name or the molecular weight. Without further notations on the clearly on the image, this image is wrong and should be changed, regardless of the fact that it may be a more common form.

Ben (talk) 22:56, 20 February 2009 (UTC)

I want to revert the edit Smokefoot made

I want to revert the edit Smokefoot made to my edits. Is this OK? Why did you revert it?

I don't think you should revert Smokefoot. I don't like to use of "soluble" as a value for solubility because it is so vague. (I know that you're not the only one to do it, though.) In your edit, you removed the {{vague}} template without addressing the problem. ChemNerd (talk) 16:01, 10 February 2013 (UTC)