Ring a ring of roses: Spectacular nanoscale molecular assemblies have been created by design of individual polymetallic components that are then linked together through simple reactions. These include an assembly where six octametallic rings surround a dodecametallic central ring.

The northern part of the Slanské Vrchy Mountains, in Slovakia, within territory Dubnik Opal Mines, is considered to be historical source opal, including opal known Romans. precious mineralization originating from post-magmatic hydrothermal fluids based on its values should recognized as an area global importance. Geological processes that are connected Neogene volcanic activity took place Mines...

With increasing demand for mineral resources, extraction of polymetallic sulphides at hydrothermal vents, cobalt-rich ferromanganese crusts at seamounts, and polymetallic nodules on abyssal plains may be imminent. Here, we shortly introduce ecosystem characteristics of mining areas, report on recent mining developments, and identify potential stress and disturbances created by mining. We analyz...

The assembly of sophisticated high nuclearity coordination complexes with relatively simple ligands allows the combination of their nanoscopic size with the magnetic or optical properties of the metals leading to interesting new materials. The incorporation of lanthanides (III) in such highly organised polymetallic complexes is of great interest in supramolecular chemistry, in view of their int...