XPS X-ray photoelectron

XPS X-ray photoelectron spectroscopy [131-137] Monoenergetic x-rays eject electrons from various atomic levels the electron energy spectrum is measured Surface composition, oxidation state... 

XPS X-ray photoelectron spectroscopy Absorption of a photon by an atom, followed by the ejection of a core or valence electron with a characteristic binding energy. Composition, oxidation state, dispersion... 

Ghosh and Almlof published many articles discussing the XPS (X-ray photoelectron spectroscopy) and UPS (ultraviolet photoelectron spectra) and the corresponding ionization potentials of porphyrins using high-level calculations. Tliese topics are indirectly related to the tautomerism of porphyrins (for an example see 94IC6057 and 95JA4691). 

An extremely rare example of a six-coordinate platinum(II) complex has been prepared by the reaction of [Pt(dmpe)2]2+ with three equivalents of I2 in H20/EtOH solution which affords black crystals of [PtI(dmpe)2(K-I2)]I3 (102). X-ray crystallography reveals a neutral I2 ligand that is coordinated to the metal center through one of the iodine atoms.278 XPS (X-ray photoelectron spectroscopy) measurements are consistent with the platinum center having a +2 oxidation state. 

In the already briefly mentioned paper, Friedrichs et al. [26] carried out very elegant HRTEM (high-resolution transmission electron microscopy) and XPS (X-ray photoelectron spectroscopy) studies of the initial stages of the formation of MgO/ Mg(OH) on the ball-milled nanocrystalline MgH (BM-MgH ) and Mg (BM-Mg) powders, the latter obtained after hydrogen desorption of the former with particle... 

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