(15-crown-5)BiI3 as a Building Block for Halogen Bonded Supramolecular Aggregates

We present the synthesis and characterization of (15-crown-5)BiI3 (1) and (15-crown-5)BiI3 center dot 0.5TIE (2), a halogen bonded adduct with tetraiodoethylene (TIE), a typical halogen bond donor. Single crystal structure analysis of 2 suggests a halogen bonding interaction between crown ether complex and TIE. The two compounds' thermal, optical and vibrational properties are investigated in comparison, with differences pointing towards a notable interaction between the two building blocks in 2. Our results show that crown ether complexes of main group metal halides can be employed as halogen bond acceptors for the synthesis of new supramolecular aggregates.

Automated summary

The synthesis and characterization of (15-crown-5)BiI3 and (15-crown-5)BiI3 center dot 0.5TIE were presented, showing a notable interaction between the two compounds through halogen bonding. The results suggest that crown ether complexes of main group metal halides can be used as halogen bond acceptors for the synthesis of new supramolecular aggregates.