Orbitals and Energies #
Note – these are listed in BINDING ENERGY
Cs 3s ≈ 1217 eV
Cs 3p ≈ 998 eV
Cs 3d ≈ 726 eV
Cs 4d ≈ 231 eV
Cs 4p ≈ 162 eV
Cs 4d ≈ 77 eV
Cs 5d ≈ 23 eV
Cs 5p ≈ 12 eV
Common Overlaps for Cs 3d #
Fe 2p – U 4d – At 4p – Pt 4s
Common Binding Energies – Cs 3d #
Theory and Background #
Caesium, a highly reactive alkali metal, has several important applications due to its unique properties. It is widely used in atomic clocks, which are essential for maintaining precise time standards. Caesium is also utilized in photoelectric cells, vacuum tubes, and as a catalyst promoter in various chemical reactions. Additionally, caesium compounds are employed in the production of optical glasses and in medical imaging.
Experimental Advice #
Caesium can suffer preferential sputtering during XPS ion etching studies owing to it’s high volatility.
Data Analysis Guidance #
Caesium exhibits typically symmetric peaks.
References #
- Band, A., et al. “Characterization of oxides of cesium.” The Journal of Physical Chemistry B 108.33 (2004): 12360-12367. Read it online here.
- Morgan, Wayne E., John R. Van Wazer, and Wojciech J. Stec. “Inner-orbital photoelectron spectroscopy of the alkali metal halides, perchlorates, phosphates, and pyrophosphates.” Journal of the American Chemical Society 95.3 (1973): 751-755. Read it online here.
