Talk:Tellurite

On 24 June 2022, it was proposed that this article be moved from Tellurite (ion) to Tellurite. The result of the discussion was moved.

Tellurite ion geometry

Most solid state tellurites contain polymeric anions with 6 coordinate Te. Te differs from Se in this respect. Is there any evidence for the discrete TeO₃^2- ion ? Axiosaurus (talk) 17:24, 12 April 2013 (UTC)[reply]

I think you are on to something here. However when I looked at the Masse et al MRS paper on Na2TeO3 and Ag2TeO3. My French is poor but the figure and the bond distance indicate 3-coord Te. Three Te-O distances at 1.87 and three at 2.9 (barely bonding). In Angew. Chem. Int. Ed. 2002, 41, p3426, a Te2O6 4- anion is observed, but it is pretty distorted.--Smokefoot (talk) 13:03, 14 April 2013 (UTC)[reply]

thanks. 2.9A looks long - I agree. The shorter bonds are similar to those in α-TeO₂ which are 1.90- 2.08. I have found other examples which seem less ambiguous- Etude cristallographique du tellurite de sodium à cinq molécules d'eau, Na2TeIVO3.5H2O Acta Cryst. (1979). B35, 1337-1340, [ doi:10.1107/S0567740879006403 ], the pentahydrate of Na2TeO3 seems to have discrete ions which have bond lengths 1.85-1.862 A, and I guess as Wells agrees that these are pyramidal ions perhaps I can sleep easier tonight. Theres also this example, Verfeinerung der Kristallstruktur von synthetischem Teineit, CuTeO₃•2H₂O, Tschermaks mineralogische und petrographische Mitteilungen, 1977, Volume 24, Issue 4, pp 287-298 where I only have access to the abstract which also suggests isolated pyramidal ions. Theres a zoo of poly-tellurite ions - and some interesting new stuff - see Structures and Properties of Functional Metal Selenites and Tellurites, Jiang-Gao Mao et al, Inorg. Chem., 2008, 47 (19), pp 8498–8510, doi: 10.1021/ic8005629. When I have got more information together and understand it - I will try and add this into the article. I had done a little tidy up of the sodium tellurite article- and I will now add the three longer bonds. Axiosaurus (talk) 13:54, 14 April 2013 (UTC)[reply]

Move discussion in progress

There is a move discussion in progress on Talk:Tellurite which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 12:03, 24 June 2022 (UTC)[reply]