Accession Number : ADA310952

Title :   The Reactivity and Dynamics of Gaseous Clusters.

Descriptive Note : End-of-the-year rept.,

Corporate Author : GEORGIA INST OF TECH ATLANTA SCHOOL OF CHEMISTRY AND BIOCHEMISTRY

Personal Author(s) : El-Said, M. A.

PDF Url : ADA310952

Report Date : 01 JUN 1996

Pagination or Media Count : 31

Abstract : In order to design new strategic materials with specific properties, we need to understand the binding forces that exist in mixed atoms or molecules not present in conventional material. Thus our aim is to understand the adhesive and cohesive forces holding atoms or molecules together in unconventional nanoparticles that do not usually bind together in conventional macroscopic materials. In the broad sense, we like to understand the forces involved in adhesion and cohesion on an atomic level by studying the structure, stability, and the rapid electronic motion in nanoparticles. Due to the large surface to volume ratio, these particles tend to have different properties not present in the bulk nor of the individual atoms or molecules making these nanoparticles. Thus they offer us an opportunity to unravel new properties with new potential applications. The aim of our present research is to synthesize and study the forces between atoms or molecules within nanoclusters. These forces determine the dynamic properties and thus the potential uses of the nanoparticles. In the past several years, we have confined our studies to gaseous clusters and studied the dynamics of their dissociation and their chemical reactivities. During the past year, we have expanded our activity to include the synthesis and study of the dynamics of excitation relaxation in colloidal nano-particles, both semiconductor and metallic. p7

Descriptors :   *DYNAMICS, *MOLECULES, *ADHESION, *REACTIVITIES, *ATOMS, *GASES, *CLUSTERING, *CHEMICAL REACTIONS, *COHESION, *ATOMIC ENERGY LEVELS, SYNTHESIS, CHEMICALS, MATERIALS, EXCITATION, MOTION, SURFACES, ELECTRONS, PARTICLES, MIXING, RELAXATION, DISSOCIATION, STRATEGIC MATERIALS.

Subject Categories : Physical Chemistry
      Miscellaneous Materials
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE