Talk:Chromium hexacarbonyl

July 18 revision of article
I contracted the article and in discarded some seemingly marginal content. I realizing that removal of content is a discouraged in WE, but the previous article was, IMHO, a collection of misleading factoids and remembrances that obscured its core message. There remain some archane aspects such as the reference (from the originating stub) to a non-prominent researcher in London. And the connection to the Aberdeen chemist seems misplaced. If I stepped over the line in my edits, please let me know or make appropriate adjustments or recommendations. The article would benefit from an organometallic pro with more time than I have.--Smokefoot 02:39, 19 July 2006 (UTC)


 * Your edits seem fine to me. Sometimes removing cruft is just as important as adding new content. Keep up the good work! —Keenan Pepper 03:09, 19 July 2006 (UTC)

Zerovalent?
If there are six ligands, how is Cr zerovalent and not hexavalent? I don't know much about this sort of chemistry. Hellbus (talk) 02:27, 15 July 2010 (UTC)
 * Good question. I am no expert on the original meaning, but in present day inorganic/organometallic jargon, "valence" is synonymous with oxidation state, such that CrCl3(H2O)3 is called trivalent, and CrO42- is a representative hexavalent chromium compound.  I think that at one time, valence referred to the number of ligands attached to the central atom as indicated by the formula.  In the former times, anhydrous chromium trichloride (CrCl3) was thought to feature three-coordinate ("trivalent") Cr, whereas today we know that CrCl3 is a polymer consisting of chromium(III), each surrounded by six doubly bridging chloride ligands. It is considered trivalent.--Smokefoot (talk) 03:02, 15 July 2010 (UTC)

MSDS link dead
The site linked no longer maintains the information. I found a MSDS for it at https://www.fishersci.com/store/msds?partNumber=AC221050500&productDescription=CHROMIUM+HEXACARBONYL+9+50GRC&vendorId=VN00032119&countryCode=US&language=en but I don't know if it's acceptable to put here.Loren Pechtel (talk) 20:14, 9 January 2022 (UTC)

Wiki Education assignment: Organometallics
— Assignment last updated by Lemontreess (talk) 16:41, 23 March 2023 (UTC)