Synthesis and Crystal Structure of Bis(methyltriethylammonium) Hexabromotellurate(IV)-tris{dibromodiselenate(I)}, [NMeEt3]2n[TeBr6(Se2Br2)3]n, Containing a Chain-Polymeric Mixed-valence Bromotellurate(IV)-Selenate(I) Anion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F03%3A00007983" target="_blank" >RIV/00216224:14310/03:00007983 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Synthesis and Crystal Structure of Bis(methyltriethylammonium) Hexabromotellurate(IV)-tris{dibromodiselenate(I)}, [NMeEt3]2n[TeBr6(Se2Br2)3]n, Containing a Chain-Polymeric Mixed-valence Bromotellurate(IV)-Selenate(I) Anion
Original language description
Red crystals of [NMeEt3]2n[TeBr6(Se2Br2)3]n (1) were isolated when selenium and bromine (1:1) were allowed to react in acetonitrile solution in the presence of tellurium(IV) bromide and methyltriethylammonium bromide (1:2). The salt 1 crystallizes in themonoclinic space group C2/c. The [TeBr6(Se2Br2)3]2 - anions contain nearly regular octahedral [TeBr6]2 - ions which are incorporated into a polymeric chain by bonding contacts between 3 facial bromo ligands and 3 Se2Br2 molecules, one of which is situated on the twofold symmetry axis. The distances between the Br ligands and the SeI atoms of the Se2Br2 molecules are observed in the range 3.308(2) - 3.408(2) A and can tentatively be interpreted as donor-acceptor bonds with Br as donors and Se2Br2 as acceptors. The TeIV - Br distances are in the range 2.669(1) - 2.687(1) A. The bond lengths in the connecting Se2Br2 molecules are: SeI - SeI = 2.267(2) and 2.281(2) A, SeI - Br = 2.340(1), 2.353(1) and 2.337(1) A.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/GA203%2F02%2F0436" target="_blank" >GA203/02/0436: Application of Crystallographic Databases in Scientific Practice</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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