Halogen Bonding in Supramolecular Chemistry and Beyond
Angew. Chem. Int. Ed. 2008, 47, 6114-6127
P. Metrangolo, F. Meyer, T. Pilati, G. Resnati, G. Terraneo
A iodide ion co-ordinates three molecules of 1,3,5-triiodotrifluorobenzene.
A iodide ion co-ordinates three molecules of 1,3,5-triiodotrifluorobenzene.
ABSTRACT
Halogen bonding (XB) is the noncovalent interaction where halogen atoms function as electrophilic species. The energetic and geometrical features of the interaction are described along with the atomic characteristics conferring to molecules the specific ability to interact via XB. Halogen bonding impacts all fields where the control of intermolecular recognition and self-assembly processes plays a key role. In this review, some heuristic principles are presented to develop a rational crystal engineering based on halogen bonding. The functional potential of the interaction is also shown by applications in the field of liquid crystals, magnetic and conducting materials, and biological systems.