Journal of the American Chemical Society · 2006 · 170 citations · 17 references
Natural SciencesChemistryPhysicsChemical KineticsMolecular RecognitionSupramolecular ChemistryBinding KineticsIntermolecular ForcesIntermolecular InteractionsLigand BindingReceptor-ligand InteractionsSupramolecular RecognitionChemical RecognitionEquilibrium Binding ConstantHydrogen-bonding RecognitionMolecular ReceptorsMolecular Recognition ThermodynamicsSelf-assembled ReceptorsStructure-based Binding MechanismsSupramolecular Receptors
The first exTTF-based receptor for molecular recognition of fullerene is described. Unexpectedly, the receptor shows completely different binding modes in chlorobenzene and CHCl3/CS2 mixtures. In the aromatic solvent, the receptor binds C60 in a noncooperative fashion (nH = 1) with a Kassoc = (2.98 +/- 0.12) x 103 M-1, whereas in CHCl3/CS2 mixtures, it shows a marked positive homotropic cooperative effect (nH = 2.7) toward binding of C60, with an apparent binding constant of (3.56 +/- 0.16) x 103 M-1. The unique solvent-switchable behavior of our receptor might find use in the controlled self-assembly of exTTF-C60 donor-acceptor ensembles.
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Multivalency and Cooperativity in Supramolecular Chemistry
Jovica D. Badjić, Alshakim Nelson, Stuart Cantrill et al. · Accounts of Chemical Research · 2005 · 632 citations
Martin R. Bryce, Adrian J. Moore, Masihul Hasan et al. · Angewandte Chemie International Edition in English · 1990 · 162 citations