Molecular Tweezers as Synthetic Receptors Focussing on Volume and Entropy of Association

Molecular Tweezers as Synthetic Receptors Focussing on Volume and Entropy of Association 

Recently, the syntheses and some supramolecular properties of receptors with ribbon-type concave topology have been reported [17, 18]. Due to their ability to selectively bind electron-deficient aromatic and aliphatic substrates, these compounds can be regarded as molecular tweezers. This section is devoted to the temperature and pressure dependence of the host-guest complex formation of the naphthalene-spaced tweezer 2 and the diacetoxy substituted derivative 3 with the 

Since A 5max showed no significant variation with temperature and pressure, enthalpy AH and entropy AS of reaction could be easily determined by variable-temperature single-point analyses and the volume of reaction AV by variable-pressure H-NMR studies. 

Formation of Host-Cuest Complexes of a-Cydodextrins with Azo Dyes  

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