Question

Describe different motions in supramolecular devices and machines with examples

Answer 1

Supra molecular devices :

Supramolecular devices complex systems are made up of molecular components with definite individual properties. these properties are intrinsic to a particular molecular component whether it is part of device or not a part of device.

Or

The interaction energy between the components of supramolecular devices must be small as compared with energy that is is the other energy parameter which are relevant to the system.

The intermolecular forces involved:

1. Vander waal forces
2. Cation pi interactions
3. Pi pi interactions
4. Pi pi stacking
5. Hydrophobic effect
6. Electrostatic interaction
7. Metal ligand interaction.

Applications

• ​​​​​​Medicinal:

​​​​​Supramolecular system has been designed to disrupt protein protein interaction that are important to Cellular function.

Processing processing and data storage:

• Supramolecular signal transduction devices(electrical interfacing)
• Molecular switches with photochromic and photoisomerisable unit by electrochromic and redox switchable units (data storage)
• Synthetic DNA computers.

Green chemistry

Reactions have been developed which precedes in the solid state directed by non covalent bonding. Such procedure are highly desirable since they reduced the need for solvents during the chemical process.

High tech devices

Supramolecular chemistry is often perceived to develop new functions that cannot appear from single molecule

• Magnetic properties
• Light responsiveness
• Self healing polymers
• Synthetic ion channels
• Molecular sensors....etc