Triphenylphosphine based Rotaxane

Ohmida Dahab, Ehkaw Thaw

Faculty: Vijaykumar Ramalingam

Mechanically interlocking molecules (MIM) display different dynamics as well as an outstanding blend of covalent and mechanical interactions. This molecule has low molecular mobility. Because of the limited motions generated by the two stoppers at each terminal, rotaxanes are categorized as interlocked molecules.

Mechanically interlocked molecules are made up of linear threading molecular species and cyclic molecular components that are linked together by a non-covalent connection. The macrocyclic ring is not covalently connected to the rod, it may readily migrate from one stopper to another, giving MIM its dynamic properties.

The functionality and polarity of the end groups, ring, and linear components may be changed to influence molecular mobility. The emphasis, however, is on the synthesis of rotaxanes. To begin, the molecule’s threading is made up of 1,6 dibromohexane linear molecules (rods) with triphenylphosphine species stoppers at both ends.

In the microwave reactor, the chemical reaction between 1,6 dibromohexane and triphenylphosphine produces mono- and di-salt. Rotaxanes were created by combining macrocyclic compounds or moving species such as Cucurbit(6)uril, Beta-cyclodextrin, Crown ether, Cyclophane, and Calixarene with mono-salt and triphenylphosphine.