CORRELATION BETWEEN X-RAY CHEMICAL-SHIFT AND PARTIAL CHARGE IN SOME COBALT SYSTEMS

Authors
MEHTA CP CHETAL AR
Citation
Cp. Mehta et Ar. Chetal, CORRELATION BETWEEN X-RAY CHEMICAL-SHIFT AND PARTIAL CHARGE IN SOME COBALT SYSTEMS, Physica status solidi. b, Basic research, 179(2), 1993, pp. 579-584
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
179
Issue
2
Year of publication
1993
Pages
579 - 584
Database
ISI
SICI code
0370-1972(1993)179:2<579:CBXCAP>2.0.ZU;2-Q
Abstract
The chemical shift of the X-ray K-absorption edge of cobalt in the sys tems COSO4.2H(2)O, CoCl2.6H(2)O, CO2O3, CO3O4, CoO, COS, and (NH4)(2)S O4.COSO4.6H(2)O is studied using a 40 cm Cauchois type bent crystal sp ectrograph of transmission type. On the basis of least-square regressi on analysis a cubic relationship between the X-ray chemical shift and the partial charge on the absorbing ion is suggested. The relation is utilized for estimating the partial charge on the Co ion in the system (NH4)(2)SO4.COSO4.6H(2)O.