Allosterically driven multicomponent assembly

2004 
Bound to cooperate: Binding of dimethylviologen in the cavity of a Zn porphyrin host dramatically increases the affinity of the host for N-donating ligands and vice versa (see scheme). These positive heterotropic allosteric effects are exploited to direct complex equilibrium mixtures towards a single self-assembled species. This allosteric magnification was used to obtain a pentameric sandwich architecture from a complex mixture of components.
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