engleski

A Mechanochemical Approach Towards Solvent-Free Synthesis

Growing problems of pollution and shrinking energy resources have imposed the necessity to devise chemical processes that are environmentally-friendly and energy-efficient, while still economically accessible. In the development of such „green chemistry“, we have recognised chemical synthesis induced by mechanical force, or mechanochemistry, as a method of choice. We are intrigued by the possibility that the recently developed and highly efficient mechanochemical methods, such as liquid-assisted grinding can be combined with solid-state analytical methods (structure solution from X-ray powder diffraction data and solid-state NMR) to achieve a fully „solvent-free research laboratory“: a complete implementation of the solvent-free paradigm in chemical research. In this contribution, we will describe our first results in that direction, achieved in the field of metal-organic synthesis. We demonstrate how mechanosynthesis allows the screening for different compositions of metal-organic polymers of zinc and cadmium with a heteroditopic ligand cyanoguanidine, followed by structural characterisation through solid- state NMR and PXRD.

mechanosynthesis; metal-organic polymers

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