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 · I₂ (1a). The supramolecular structures of 1a, 3, 5, 7 and 9 are dominated by structurally directing secondary Te?I interactions.