Related Experiment Video
Updated: Nov 12, 2025

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
Published on: May 10, 2021
On the 31Πu state in caesium dimer
Jacek Szczepkowski1, Anna Grochola1, Wlodzimierz Jastrzebski1
1Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland.
Abstract:
Polarisation labelling spectroscopy technique was employed to study the 31Πu state of Cs2 molecule. The main equlibrium constants are Te=20684.56cm-1,ωe=30.62 cm-1 and Re=5.27 Å. Vibrational levels v=4-35 of the 31Πu state were found to be subject to strong perturbations by the neighbouring electronic states. Energies of 3352 rovibronic levels of the perturbed complex were determined.
More Related Videos
Related Concept Videos
Electron Configuration of Multielectron Atoms
Hybridization of Atomic Orbitals II
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Valence Bond Theory
Predicting Molecular Geometry
Other Nuclides: 31P, 19F, 15N NMR
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...

