Accession Number:

ADA222766

Title:

Chemical Structure and Kinetics at Liquid/Solid Interfaces

Descriptive Note:

Rept. for 1 Jun 1989-31 May 1990,

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1990-05-31

Pagination or Media Count:

11.0

Abstract:

This program of research is to develop spectroscopic methods for exploring chemical structure and molecular dynamics at interfaces between dielectric solids and liquids. The research is carried out using fluorescence and vibrational spectroscopy from probe molecules where spectral and temporal differences in emission, absorption, or scattering provide information about the surface onto which they are adsorbed or bound. Studies focus on the interfacial chemistry of oxide surfaces mostly silica and derivatized silica in contact with liquids. The spectral and temporal response of probe molecules is used to observe differences in the chemical environment at the liquid-solid interface due to the presence of bound or adsorbed molecules. Time-resolution is also valuable in sorting out heterogeneous surface environments from differences in emission rate constants, adsorption rates, and reaction kinetics of probe molecules to solid surfaces are being measured using perturbation methods. jes

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE