Solvent and Pressure Effects on the Motions of Encapsulated Guests: Tuning the Flexibility of a Supramolecular Host
作者:Jeffrey S. Mugridge、Achim Zahl、Rudi van Eldik、Robert G. Bergman、Kenneth N. Raymond
DOI:10.1021/ja309949q
日期:2013.3.20
The supramolecularhost assembly [Ga4L6](12-) [1; L = 1,5-bis(2,3-dihydroxybenzamido)naphthalene] contains a flexible, hydrophobic interior cavity that can encapsulate cationic guest molecules and catalyze a variety of chemical transformations. The Ar-CH2 bond rotational barrier for encapsulated ortho-substituted benzyl phosphonium guest molecules is sensitive to the size and shape of the host interior
<sup>1</sup>H NMR Chemical Shift Calculations as a Probe of Supramolecular Host–Guest Geometry
作者:Jeffrey S. Mugridge、Robert G. Bergman、Kenneth N. Raymond
DOI:10.1021/ja202254x
日期:2011.7.27
The self-assembledsupramolecularhost [Ga(4)L(6)](12-) (1; L = 1,5-bis[2,3-dihydroxybenzamido]naphthalene) can encapsulate cationic guest molecules within its hydrophobic cavity and catalyze the chemical transformations of bound guests. The cavity of host 1 is lined with aromatic naphthalene groups, which create a magnetically shielded interior environment, resulting in upfield shifted (1-3 ppm) NMR