Halogen bonding is a flourishing field of research, but has for long been little recognized. The same goes its scientific hero, Odd Hassel, who laid the foundations all current developments. crystallographic observation halogen−oxygen interatomic distances shorter than sum van der Waals radii involved atoms, and interpretation this phenomenon as charge-transfer interaction, have ground-breaking...

Quantitative studies of the 1 : 1 complexes formed between perfluorohexyl iodide and a variety of hydrogen-bond acceptors have been used to probe the relationship between halogen bonding, hydrogen bonding, desolvation and the electrostatics of non-covalent interactions.

A halogen bonding bis-iodotriazolium water-soluble acyclic receptor exhibits enhanced perrhenate anion recognition in water compared to the hydrogen bonding analogue, and is shown to be capable of sensing the oxoanion via a fluorescence response.

Asymmetric functionalization of the tetraarylporphyrin scaffold, combined with directional supramolecular halogen bonding, yields chiral architectures.

OBJECTIVE To test the hypothesis that bonding with a blue light-emitting diode (LED) curing unit produces no more failures in adhesive-precoated (APC) orthodontic brackets than bonding carried out by a conventional halogen lamp. MATERIALS AND METHODS Sixty-five patients were selected for this randomized clinical trial, in which a total of 1152 stainless steel APC brackets were employed. In or...

New liquid crystals are reported that are formed from non-mesomorphic components assembled using both halogen and hydrogen bonding.