Organotelluroxane molecular clusters assembled via Te⋯X - (X = Cl - , Br - ) chalcogen bonding anion template interactions.

The synthesis and characterisation of two novel molecular organotelluroxane clusters, comprising of an inorganic Te 8 O 6 X 4 (X = Cl, Br) core structure are described. The integration of highly electron withdrawing 3,5-bis-trifluoromethylphenyl groups to the constituent Te(IV) centres is determined to be crucial in the chalcogen bonding (ChB) halide template directed assembly. Characterised by multi-nuclear 1 H, 125 Te, 19 F NMR, UV-Vis, IR spectroscopies and X-ray crystal structure analysis, the discrete molecular clusters exhibit excellent organic solvent solubility and remarkable chemical stability. Furthermore, preliminary fluorescence investigations reveal the telluroxanes exhibit aggregation induced emission (AIE) behaviour in organic aqueous solvent mixtures.