Rotaxanes
9/10/2008
“A rotaxane is a mechanically-interlocked molecular architecture
consisting of a "dumbbell shaped molecule" which is threaded through a "macrocycle"
(see graphical representation). The name is derived from the Latin for wheel (rota)
and axle (axis). The two components of a rotaxane are kinetically trapped since
the ends of the dumbbell (often called stoppers) are larger than the internal
diameter of the ring and prevent disassociation (unthreading) of the components
since this would require significant distortion of the covalent bonds.”
Wikipedia:
http://en.wikipedia.org/wiki/Rotaxane (11/8/2008)
Graphical representation of a rotaxane.
Wikipedia:
http://en.wikipedia.org/wiki/Rotaxane (11/8/2008)
Crystal structure of rotaxane with a
cyclobis(paraquat-p-phenylene)
macrocycle.
Wikipedia:
http://en.wikipedia.org/wiki/Rotaxane (11/8/2008)
Warning: Sometimes the older links no longer work. Go to the US Patent Patent number search page, copy the Patent number into the search box and search. For the articles, use your browser to go the Journal site.
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Notes
“Much of the research concerning rotaxanes and other mechanically-interlocked
molecular architectures, such as catenanes, has been focused on their efficient
synthesis. However, examples of rotaxane have been found in biological systems
including: cystine knots, cyclotides or lasso-peptidessuch as microcin J25 are
protein, and a variety of peptides with rotaxane substructure.”
Wikipedia:
http://en.wikipedia.org/wiki/Rotaxane (11/8/2008)
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Review Articles
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US Patents
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Articles
11/21/2008
Electrospinning of
Cyclodextrin-Pseudopolyrotaxane Nanofibers
(p 9108-9111)
Angewandte Chemie International Edition 47 #47 (2008)
Abstract
Synthesis and Characterization of Polyrotaxanes based
on Cyclodextrins and Viologen-modified Polydimethylsiloxanes
(553-566)
High Performance Polymers 20 #6 (2008)
[Abstract]
11/7/2008
Synthesis and Optoelectronic Properties of
Nonpolar Polyrotaxane Insulated Molecular Wires with High Solubility in Organic
Solvents
(p 3367-3376)
Advanced Functional Materials 18 #21 (2008)
Abstract
Morphology and properties of a polyrotaxane based on γ-cyclodextrin and a
polyfluorene copolymer
(96-101) Chemical
Physics Letters 465 #1-3 (2008)
10/31/1008
Fabrication of mechanically improved hydrogels using a movable cross-linker
based on vinyl modified polyrotaxane
(5227 - 5229)
Chemical Communications #40 (2008)
10/10/2008
Molecular rotors in hierarchically ordered mesoporous organosilica frameworks
(4798 - 4800)
Chemical Communications #39 (2008)
9/19/2008
Solvent-Free Synthesis of the Smallest Rotaxane Prepared to Date
(p 7475-7478)
Angewandte Chemie International Edition 47 #39 (2008)
Abstract
Polyfluorene copolymer with a multiply blocked rotaxane architecture in the main
chain: Synthesis and characterization
(p 2384-2392)
Journal of Applied Polymer Science 110 #4 (2008)
Abstract
9/5/2008
Gold(I)-Template Catenane and
Rotaxane Synthesis
(p 6999-7003)
Angewandte Chemie International Edition 47 #37 (2008)
Abstract
A Polymeric Pseudorotaxane
Constructed from Cucurbituril and Aniline, and Stabilization of Its Radical
Cation
(p 7293-7296)
Angewandte Chemie International Edition 47 #38 (2008)
Abstract
Rotaxanes and pseudorotaxanes with Fe-, Pd- and Pt-containing axles. Molecular
motion in the solid state and aggregation in solution
(4823 – 4833)
Dalton Transactions #36 (2008)
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Roger D. Corneliussen
Editor
Telephone: 610 883 0055
rcorneliussen@4spe.org
www.maropolymeronline.com
Copyright 2008 by Roger D. Corneliussen