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catenane

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catenane [′kat·ən‚ān]
(organic chemistry)
A supramolecular species consisting of mechanically interlocked macrocyclic rings.


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Topics addressed include bioactive macrocyclic peptides and peptide mimics, macrocycles by ring-closure metathesis, supramolecular macrocycle synthesis by H-bonding assembly, cucurbiturils, tetra-urea calixarenes, shape-persistent macrocycles based on acetylenic scaffolding, supramolecular 3D architectures by metal-directed assembly of synthetic macrocycles, new properties and reactions in self-assembly M6L4 coordination cages, anion-binding macrocycles, and rotaxane and catenane synthesis.
Rather than encode Is and Os on the basis of the amount of charge stored in a memory cell, as conventional memory chips do, the UCLA approach encodes data in catenane molecules, each of which has two interlocked rings.
The new catenane structures could be used to make surfaces that change color, stickiness, and other properties depending on the relative positions of the rings, suggests Leigh.
 
 
 
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