| Issue |
J. Phys. Colloques
Volume 47, Number C8, Décembre 1986
EXAFS and Near Edge Structure IV
|
|
|---|---|---|
| Page(s) | C8-1177 - C8-1180 | |
| DOI | https://doi.org/10.1051/jphyscol:19868230 | |
EXAFS and Near Edge Structure IV
J. Phys. Colloques 47 (1986) C8-1177-C8-1180
DOI: 10.1051/jphyscol:19868230
1 Department of Chemistry, Stanford University, Stanford, CA 94305, U.S.A.
2 Department of Chemistry, Stanford University, Stanford, CA 94305, U.S.A.
J. Phys. Colloques 47 (1986) C8-1177-C8-1180
DOI: 10.1051/jphyscol:19868230
QUANTITATIVE Cu X-RAY ABSORPTION EDGE STUDIES : OXIDATION STATE AND SITE STRUCTURE DETERMINATION
LUNG-SHAN KAU1, J.E. PENNER-HAHN1, E.I. SOLOMON2 et K.O. HODGSON21 Department of Chemistry, Stanford University, Stanford, CA 94305, U.S.A.
2 Department of Chemistry, Stanford University, Stanford, CA 94305, U.S.A.
Abstract
X-ray absorption edge studies of Cu(I) complexes with different coordination number and covalency reveal that the 8983-8984 eV feature (assigned as the 1s→4p transition) can be correlated with ligation and site geometry. These Cu(I) features have been qualitatively interpreted using a Ligand Field model, and this has been applied to analyze the polarized single crystal, pH dependent edge spectra of reduced plastocyanin. In addition, normalized difference X-ray absorption edge analysis has been used to quantitatively determine the percent of Cu(I) in several derivatives of the multicopper oxidase, laccase.