Iodine

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Iodine

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Orbitals and Energies #

Note – these are listed in BINDING ENERGY

 

I 3s ≈ 1072 eV

I 3p ≈ 875 eV

I 3d ≈ 620 eV

I 4s ≈ 186 eV

I 4d ≈ 50 eV

I 5s ≈ 14 eV

I 5p ≈ 3 eV

Cs2TeI6 Survey With Peak Markers for I

Doublet Separations #

I 3d = 11.5 eV

I 4d = 1.76

XPS of I 3d with doublet separation

Common Overlaps for Cu 2p #

Cd 3p – Ra 4d – V 2s – Rh 3s – Re 4s – Gd LMM (Al Ka X-rays)Eu LMM (Al Ka X-rays)

I 3d Region With Overlapping Peak Markers

Auger Energies #

Note – these are listed in KINETIC ENERGY

 

I MNN ≈ 500 eV

XPS of I MNN Region with Al ka X-rays

Common Binding Energies – I 3d #

Species #

B.E. / eV #

Charge Ref #

Reference #

Iodine

HIO3

I2O5

HI3O8

H5IO6

NaIO3

NaI

NaIO4

CsI3

619.9

623.1

623.3

623.2

623.0

623.5

618.4

624.0

618.45

C 1s (284.6 eV)

Theory and Background #

Iodine is analysed by the 3d orbitals, and displays no unusual behaviour.

Experimental Advice #

Avoid etching iodine containing materials in your chamber – this will likely cause persistent iodine contamination.

Data Analysis Guidance #

Iodine may feature a shake-up loss feature around 5 ish eV above the core line, not to be mistaken with another oxidation state.

Iodine shakeup

Reference Datasets #

 

Coming soon

References #

  1. Sherwood, Peter MA. “X-ray photoelectron spectroscopic studies of some iodine compounds.” Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics 72 (1976): 1805-1820.Read it online here.