The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials.
Characterization of fluorine-centered `F⋯O' σ-hole interactions in the solid-state
We report the experimental observation of a `unique' and `rare' F⋯O interaction, involving two electronegative atoms, having the characteristics of `short interatomic distance' and `high directionality' that provide robustness to the crystal packing. The characterization of these F⋯O contacts via different computational procedures establish the interaction to be dispersive in nature and the mutual polarization of an O atom by F and vice versa provides real physical insights into the role of atomic polarizability in interacting atoms in molecules in crystals.
A new tecton with parallel halogen-bond donors: a path to supramolecular rectangles
A new tecton, 1,8-diiodoethynylanthracene, with two parallel halogen-bond-donor sites was synthesized and characterized. This tecton is capable of forming two parallel halogen bonds at once, which makes it a useful building block for the construction of a variety of supramolecular squares and rectangles.