Chemical shifts in the X-ray L<sub>III</sub>-edges of lead and bismuth

Vishnoi, A. N.

doi:10.1088/0022-3719/3/2s/313

Cited by 10 publications

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“…Such discrepancies in the observed shifts of edges are well known [23][24][25][26][27]. Vishnoi [23] observed the shift in PbO, which is 52% ionic, is 3.2 eV, while in PbS which is only 13% ionic, that is largely covalent, it is 4.0 eV. In this case the shift increases with the covalent character and therefore does not support the rule suggested by Agarwal and Verma [19].…”

Section: N N N N Notementioning

confidence: 74%

“…On the basis of the valence and ionicity rule [19][20][21][22] one may expect nearly the same shift in the two compounds. Such discrepancies in the observed shifts of edges are well known [23][24][25][26][27]. Vishnoi [23] observed the shift in PbO, which is 52% ionic, is 3.2 eV, while in PbS which is only 13% ionic, that is largely covalent, it is 4.0 eV.…”

Section: N N N N Notementioning

confidence: 84%

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XANES of the AuLIII edge in gold metal and in two compounds AuCN and AuCl3

2010

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The X-ray Absorption Near Edge Structure (XANES) of the AuL III edge in gold metal and in its two compounds AuCN and AuCl 3 have been recorded. The observed chemical shifts of the edge and the fine structure peaks in the compounds are discussed. It is observed that the energy shifts 'E of the AuL III due to chemical effects in aurous cyanide (AuCN) and auric chloride (AuCl 3 ) with respect to the pure Au edge is 2.9 eV in AuCN and 0.7eV in AuCl 3 . The edge widths in AuCN and AuCl 3 are found to be almost the same for both the compounds, presumably because electronegativities of CN and Cl are not very different. The observed fine structure peaks of the discontinuities of AuCN and AuCl 3 are displaced progressively away from the main edge.

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