| Popis: |
The controlled translocation of submolecular units is seen as an important requirement for the future development of “machines” which function through mechanical motion at the molecular level. Mechanically-interlocked molecules, i.e. catenanes and rotaxanes, are ideal candidates for application as components for molecular devices due to the inherent restrictions in the degrees of freedom presented in their architectures. Hydrogen bond-directed assembly offers powerful strategies for the synthesis of such structures on a scale where practical applications become a realistic area for study. This Thesis focuses on (i) the use of hydrogen bonding interactions in the synthesis of structurally different fumaramide template-containing [2]rotaxanes, (ii) the control of the rotational and translational motion in stimuli-responsive [2]rotaxanes and (iii) the control of a physical property, such as elliptical polarization, in a stimuli-responsive two-station [2]rotaxane. The stimuli required to promote the submolecular motion are light and heat. |
