Determining details of attraction in mechanically-linked molecules allows chemists to fine-tune shapes, capabilities of supramolecules for improved and new polymers
Virginia Tech chemistry professor H.W. Gibson and his students have been able to take advantage of self assembly to create new chemical structures from mechanically-linked molecules. Gibson will give an invited talk in the Division of Polymer Chemistry at the 225th national meeting of the American Chemical Society March 23-27 in New Orleans.
The field of mechanically-linked chemistry uses a limited set of compounds as building blocks for supramolecules. Starting with crown ethers, which are rings (the ’hosts’), and rod-shaped molecules such as ammonium ions (the ’guests’), the chemists thread the rings with the rods to create molecules called pseudorotaxanes. Bulky groups are then added to the ends of the rods so they won’t unthread and these molecules are rotaxanes.
Harry Gibson | EurekAlert!
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Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
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Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
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On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
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