text-only page produced automatically by LIFT Text Transcoder Skip all navigation and go to page contentSkip top navigation and go to directorate navigationSkip top navigation and go to page navigation
National Science Foundation
News
design element
News
News From the Field
For the News Media
Special Reports
Research Overviews
NSF-Wide Investments
Speeches & Lectures
NSF Current Newsletter
Multimedia Gallery
News Archive
News by Research Area
Arctic & Antarctic
Astronomy & Space
Biology
Chemistry & Materials
Computing
Earth & Environment
Education
Engineering
Mathematics
Nanoscience
People & Society
Physics
 

Email this pagePrint this page
All Images


Press Release 08-117
Radicals Shake Up Molecules in a Tug o' War

Back to article | Note about images

Illustration shows two black dots in a glowing bar representing a molecule of unexcited deuterium.

The illustration depicts an unexcited deuterium molecule--a form of molecular hydrogen composed of two deuterium, or heavy hydrogen, atoms. The interactions of this molecule with a single hydrogen atom offer the first glimpse of the newly coined "Tug o' War Mechanism," which describes how the transfer of energy between colliding molecules affects the collision behavior. Stanford researchers, along with international collaborators, discovered this fundamental mechanism underlying many inelastic, or energy transferring, collisions in gases and liquids.

Credit: Stuart Greaves, University of Bristol


Download the high-resolution JPG version of the image. (4 KB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

The movie presents a representation of a collision between a molecule of deuterium (D2) and a radical hydrogen atom (white dot). The hydrogen atom approaches the D2 off center, tugging the molecule outwards, and then deflects around the molecule. This depicts the sort of frustrated chemical reactions that are theorized by the "Tug o' War."

Credit: Stuart Greaves, University of Bristol

 



Email this pagePrint this page
Back to Top of page