Synergetic activation of "silent receptor" sites leading to a new type of inclusion complex: integration of a 64membered ring comprising K+ and SO42– ions into a molybdenum oxide-based nanoobject

The new type of inclusion species [MoVI114MoV32O429(H2O)50(KSO4)16]30– comprising 16 encapsulated K+ and SO42– ions shows an unusual 64-membered {K(SO4)}16 ring integrated into a wheel-shaped type nanocluster host; it is formed by a synergetically induced functional complementarity and represents a text-book example of a very complex non-biological material.