engleski

Building inorganic architectures using principles borrowed form organic systems

One of the challenges standing in the way of more predictable supramolecular assembly of metal-containing structures with precise and desirable metrics and topologies, is the lack of transferable and robust guidelines for pre-planned synthesis based on non-covalent interactions. In order to make us less reliant on serendipity when targeting a desired supramolecular architecture we first need to map out the structural landscape that describes how different molecules recognize, interact and communicate (in a structural sense) even in the presence of potentially disruptive counter ions that regularly appear in metal-organic systems. In this contribution we utilize small N-heterocyclic ligands encoded with functional groups (known from organic chemistry) capable of directional hydrogen bonding as a way of connecting adjacent Cd(II) complexes in a desirable manner. The relative orientation and geometry of these supramolecular synthetic vectors are organized in a complementary manner with a view to facilitating programmed assembly of metal-containing solid-state architectures. Structural, thermal and spectroscopic data have been complemented by CSD data mining, and extensive computational methods facilitate the interpretation of the experimental efforts. Although the strategy is relatively straightforward and logical, and the targets are seemingly attainable and realistic, non-covalent interactions have a way of occasionally producing very interesting surprises…

N-heterocyclic ligands; Cd(II) complexes; supramolecular assembly

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