Chemical Shift of X-Ray K-Absorption Edge of Ni in Some of its Compounds and its Correlation with Partial Charge

• Authors: V.K. Singh , A.R. Chetal , P.R. Sarode
• Languages of publication: EN

Abstracts

EN

X-ray absorption Ni K-edge spectra are recorded for the following sys­tems: Ni metal, Ni(NO_{3})_{2} • 6H_{2}0, Ni_{3}(PO_{4})_{2} • 6H_{2}0, NiSO_{4} • 6H_{2}0, NiCO_{3}, NiO and La_{2}NiO_{4} using a Cauchois-type bent crystal spectrograph. The chemical shift of these systems is correlated with the partial charge deter­mined using Sanderson's method. On the basis of regression analysis a rela­tion ΔE = A_{0} + A_{1}q + A_{2}q^{2} -A_{3}q^{3} + A_{4}q^{4} between the chemical shift, ΔE, and the partial charge, q, has been suggested. The discrepancy in the shift of NiO and La_{2}NiO_{4} has also been discussed.

Keywords

EN

78.70.Dm

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 87
• Issue: 6
• Pages: 1003-1008

Dates

published

1995-06

received

1994-09-02

(unknown)

1994-12-20

Contributors

author

V.K. Singh

• Department of Applied Physics, Indian School of Mines, Dhanbad, India

author

A.R. Chetal

• Department of Applied Physics, Indian School of Mines, Dhanbad, India

author

P.R. Sarode

• Department of Physics, Goa University, Goa, India