Noncovalent Encapsulation of Cobaltocenium inside Resorcinarene Molecular Capsules

摘要: The encapsulation of cobaltocenium (Cob+) inside hexameric molecular capsules two different resorcinarenes was investigated in dichloromethane solution. Both 1H NMR spectroscopic and voltammetric experiments clearly reveal that Cob+ experiences encapsulation. Diffusion coefficient measurements obtained from PGSE indicate the exist solution absence any cations. Bound free ions undergo slow exchange on time scale, but bound rotate and/or tumble freely capsules. Under experimental conditions suitable for voltammetry depends nature supporting electrolyte. Tetraalkylammonium hexafluorophosphate, tetrafluoroborate, perchlorate electrolytes prevent Cob+, while tetraalkylammonium chloride bromide salts allow it. cation plays a smaller role Finally, st...