The structural diversity of Te–I interactions within tetraorganoditelluroxane diiodides and related compounds

Two tetraorganoditelluroxane diiodides (R2Te)2OI2 (3, R = p -MeOC6H4; 5, R = Me) were prepared by the reaction of (p -MeOC6H4)2TeI2 (1) and (p -MeOC6H4)2TeO (2) and the base hydrolysis of Me2TeI2 (4), respectively. The base hydrolysis of C4H8TeI2 (8) afforded the tritelluroxane diiodide (C4H8Te)3O2I2 (9). The reaction of Me2TeI2 (4) and Me2Te(OH)2 (6) in a ratio of 1:3 produced the coordination polymer of the composition 2 (Me2Te)2O(I)OH · H2O (7). An attempt at preparing an adduct of 3 with iodine failed but provided co-crystals of (p -MeOC6H4)2TeI2 · View the MathML source12I2 (1a). The supramolecular structures of 1a, 3, 5, 7 and 9 are dominated by structurally directing secondary Te⋯I interactions.