Talk:Niobium(V) chloride

Is this detailed organic process really appropriate for a general page on NbCl5? I think it is too technical for a general reader, and not significant enough for a more technical reader. I would prefer reactions that illustrate the use of NbCl5 more generally, using more important examples. Any comments? Walkerma 1 July 2005 06:18 (UTC)

Hi Walkerma, I think insignificant contributions are not an issue in wikipedia, If I scan wiki new articles and see football in Norway in 1905 or separate articles for all the UK train stations I think I can get away with any obscure niobium contributions. I included other niobium chemistry in the Diels-Alder and ene reaction pages that perhaps you would judge significant. I rely on the self-cleaning wiki process that when new material enters the niobium article the organic scheme gets demoted to the perifery. I have been thinking about an article on iminium ion chemistry but decided in the end to put the organic scheme in the niobium pentachloride article itself, if you can find another elegant article setup niobium pentachloride as a Lewis acid or so for it please go ahead. My contributions are a bit one sided because my main interest is open source publications and these Brazillians write a lot about it (they own 80% of the world niobium recources after all). V8rik 1 July 2005 15:50 (UTC)

suppliers
Dear Sirs,

I do not think, that links to extern chemical suppliers with "datasheets" and commercial informations are helpful to develop a scientific encyclopedia...

If one suppliers spreads his links everywhere, many others will follow developing wikipedia in a commercial link list.

Best regards


 * Dear 213.188.227.119.

I disagree with the point you take in the external links. They provide extra information, and are just what they are, external links. It indeed becomes annoying if a carbrand would replace all the occassions where the brandname is mentioned with a link to it's homepage, but that would be regarded as vandalism, and would be reverted. A link to the brand in the external links, would be left alone.

By the way, it is common use to put your contributions at the bottom of the page (I will move this part down now), and to sign them (when you put things on a talk-page). May I ask you to start a personal account? Cheers! --Dirk Beetstra 17:34, 25 May 2006 (UTC)

Proposed to move this to Niobium pentachloride
Most users call this material niobium pentachloride. TiCl4 is listed as titanium tetrachloride. So I propose to move this article to "niobium pentachloride" unless people object, which is cool.--Smokefoot 02:46, 28 October 2007 (UTC)

Structural amendment
I added the length and inflection angle of the axial chlorines. The lengths are different for equatorial chlorines, and the inflection was not listed. The source is ultimately the same geometry I assume was found in Advanced Inorganic Chemistry however the Nb-Nb separation is slightly longer what was previously listed (about 3 pm). The length I have added was obtained directly from the .CIF deposited with Cotton et al's 1991 paper. Snarfevs (talk) 04:07, 29 February 2008 (UTC)