engleski

From versatile hydrogen- and halogen-bond acceptors to elastic bending of metal- containing architectures

In order to use weak interactions as effective tools in deliberate synthesis of desired metal- containing supramolecular assemblies a very detailed understanding of the importance of different noncovalent interactions is required. Thanks to their comparable strengths and directionalities, hydrogen and halogen bonds have emerged as key synthetic tools in this context. To establish similarities and possible mimicry of the two types of interactions we have carried out a structural examination of a series of metal-based halide complexes with pyridine-type ligands equipped with functionalities capable of forming of either hydrogen or halogen bonds. Our results indicate that synthon- transferability from system to system, regardless of the building- block dimensionality, is a genuine possibility. Some surprising physical properties, including elastic bending, will be discussed against a backdrop of weak interactions using a combination of experiment and theory.

hydrogen bond ; halogen bond ; metal-based halide complexes ; pyridine-type ligands

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