Study coauthor Kenneth Jordan, a Distinguished Professor of Chemistry in Pitt's School of Arts and Sciences and codirector of the University's Center for Simulation and Modeling, reports in the Dec. 12 edition of Science that the ability to initiate molecular chain reactions and self-assembly has potential applications in information storage and in nanolithography, a process used in producing microchips and circuit boards.
Because the demonstrated reaction involved several molecules on a surface, it reframes researchers' understanding of surface-based chain reactions. "The conventional wisdom held that a surface reaction would fizzle soon after the electron was introduced," Jordan said. "Our work, however, shows that reactions on metal surfaces can be sustained over long distances."
Jordan and his colleagues worked with dimethyldisulfide molecules—two CH(3) methyl groups bonded by two adjoining sulfur atoms. The added electron split the bond between the sulfur atoms of one molecule, creating a highly reactive free radical that attacked the sulfur-sulfur bond of the neighboring molecule. The radical split the bond, resulting in a new molecule and a new radical that proceeded to the sulfur-sulfur bond of the next molecule. The process repeated itself through a series of molecules.
- About That Triacetylene In Titan's Atmosphere...
- Alzheimer's Drug CTS-21166 Goes Into Clinical Trials
- Chemists Settle Longstanding Debate On How Methane Is Made Biologically
- Steric And Electronic: Good Vibrations For Catalyts
- Why The Primary Sequence Of Amino Acids In Any Polypeptide/Protein Is Fundamental To The Correct Functioning Of That Polypeptide/Protein