Jahn–Teller Effect and Spin-Orbit Coupling in Heavy Alkali Trimers

  • Andreas W. Hauser
  • Gerald Auböck
  • Wolfgang E. Ernst
Part of the Progress in Theoretical Chemistry and Physics book series (PTCP, volume 23)


Triatomic alkali-metal clusters in their high-spin manifolds of electronically excited states provide the chance to investigate the spectroscopic consequences of the combination of Jahn–Teller effect and spin-orbit coupling with powerful methods of quantum chemistry such as open-shell coupled cluster approaches and multireference Rayleigh-Schroedinger perturbation theory. With respect to available experimental data the 24E ← 14A2 transitions are selected to document the quenching of the paradigmatic E ⊗ e Jahn–Teller distortion with increasing spin-orbit coupling. The simulated spectra for potassium, rubidium and cesium trimers are provided together with all relevant parameters such as harmonic frequencies, Jahn–Teller parameters and spin-orbit splittings obtained from the ab initio approach. Beside that, the molecular geometries and formation energies of these van der Waals molecules are also listed in this chapter.


Teller Effect Magnetic Circular Dichroism Angular Momentum Projection Magnetic Circular Dichroism Spectrum Electronic Angular Momentum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



AWH gratefully acknowledges support from the Graz Advanced School of Science, a cooperation project between TU Graz and the University of Graz, and the Austrian Science Fund (FWF, Grant No. P19759-N20).


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Andreas W. Hauser
    • 1
  • Gerald Auböck
    • 2
  • Wolfgang E. Ernst
    • 1
  1. 1.Institute of Experimental PhysicsGraz University of TechnologyGrazAustria
  2. 2.Institut des sciences et inǵenierie chimiquesEcole Polytechnique Fédérale de LausanneLausanneSwitzerland

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