Search results
A rotaxane (from Latin rota ' wheel ', and axis ' axle ') is a mechanically interlocked molecular architecture consisting of a dumbbell -shaped molecule which is threaded through a macrocycle (see graphical representation).
18-crown-6 coordinating to a potassium ion. In organic chemistry, crown ethers are cyclic chemical compounds that consist of a ring containing several ether groups ( R−O−R’ ). The most common crown ethers are cyclic oligomers of ethylene oxide, the repeating unit being ethyleneoxy, i.e., −CH2CH2O−. Important members of this series are ...
People also ask
What does rotaxane mean?
What is a rotaxane composed of?
Are rotaxanes mechanically interlocked?
What are bistable rotaxanes?
The term ‘rotaxane’ generally refers to the simple [2]rotaxane, which involves one wheel on an axle. Higher-order rotaxanes, sometimes called polyrotaxanes, consist of an axle with two or more wheels and are named in a similar fashion; [3]rotaxanes consist of two wheels about an axle, [4]rotaxanes consist of three wheels about an axle and ...
Apr 1, 2019 · c. 2]Daisy Chain Rotaxanes as Molecular Muscles. Bistable [ c 2]daisy chain rotaxanes represent a particularly intriguing class of interlocked molecules that can produce internal sliding movements with a net contraction or extension at the single-molecule level. These nanometric motions show some analogies with the sliding motions of actin and ...
- Antoine Goujon, Emilie Moulin, Gad Fuks, Nicolas Giuseppone
- 2019
Jun 3, 2019 · Download PDF. Research at the University of Freiburg is summarized which aimed at realizing catenanes, rotaxanes, and a molecular knot from 61–62 until 41 years ago. Taking a fresh view at ansa-compounds – disti...
- Reinhard Brückner
- 13
- 2019
- 03 June 2019
Aug 16, 2021 · Chapter 1: Macrocycles, Catenanes and Rotaxanes. Inspired by the myriad enzymes found in living organisms, supramolecular chemists have investigated the cavities of both macrocycles and the related interlocked molecules catenanes and rotaxanes as catalytic and non-catalytic sites of chemical reactions.
Polyrotaxane is a type of mechanically interlocked molecule consisting of strings and rings, in which multiple rings are threaded onto a molecular axle and prevented from dethreading by two bulky end groups. As oligomeric or polymeric species of rotaxanes, polyrotaxanes are also capable of converting energy input to molecular movements because ...
