About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Surface Science
Paper
SEXAFS studies of CC bond lengths in condensed and chemisorbed molecules
Abstract
Extended X-ray absorption fine structure (EXAFS) studies are reported above the carbon K-edge for solid benzene and cyclohexane. Both molecules exhibit pronounced EXAFS extending more than 500 eV above the edge. The measured EXAFS is in good agreement with single scattering simulations for the isolated molecules using a phase shift obtained from graphite data. We also explored the possibility of measuring the intra-molecular CC EXAFS for a chemisorbed molecule on a metal surface. Model calculations for a di-carbon species chemisorbed on Cu(100) reveals the feasibility of such studies for certain chemisorption geometries by use of a suitable sample orientation in the X-ray beam. © 1988.