Molecular dynamics simulations of beta-cyclodextrin-aziadamantane complexes in water

J Phys Chem B. 2008 Jan 24;112(3):710-4. doi: 10.1021/jp075493+. Epub 2008 Jan 1.

Abstract

Force-field-based atomistic simulations of host-guest supramolecular complexes between beta-cyclodextrin and several aziadamantane derivatives have been analyzed with respect to relative orientation and interaction energies, explicitly considering solvent (water) molecules. For each case, the calculations revealed two stable orientations of the guest within the host that are different in interaction energy. Fluctuation of and correlation between characteristic properties were analyzed. Among other things, it turned out that orientation angle and inclusion depth are clearly correlated. In addition, for the unsubstituted aziadamantane, the enthalpy of complex formation was calculated and compared to experimental results.