Polytellurium

Further information of the chemistry of polysulfur, polyselenium, and polytellurium cations can be found in reviews.773 776,876,898 899... 

Polytellurium bis[hexafluoroarsenate] heated with tetrafluoroethene produced symmetrical and unsymmetrical bis[perfluoroalkyl] telluriums5,6. When the reaction was performed with sulfur dioxide as solvent, 3-fluorocarbonylhexafluoropropylpentafluoroethyl tellurium was also formed in 2% yield6. 

Aluminum forms a complete series of AlYX compounds (Y = S, Se, Te X = Cl, Br, I). Furthermore, a number of compounds with Se(IV) and Te(IV) are known, such as TeClJ AlClj (197) and SeCl AICI4 (364), which are not considered here. A borderline case consists in the reduced phases found in the systems (TeCl4-l-4AlCl3)-Te and (SeCl4 + 4A1C13)-Se (88), e.g., Te (AlClr) (89), T + (AUClf) (89), Te + (AICID3 (88), Se (AlClr) (88), and Se + (AICID (87), which contain cyclic polytellurium and polyselenium cations. For a detailed review of homopoly atomic ions of the posttransition elements, see (86). 

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