Probing the coupling of a dipole-bound electron with a molecular core

Chemical Science
Joseph CzeknerLai-Sheng Wang

Abstract

A dipolar molecule can weakly bind an electron in a diffuse orbital. However, the spin-orbit coupling between this weakly bound electron and the electrons in the molecular core is not known. Here we probe this coupling using the linear C2P- anion with the 3Σ+ ground state, which possesses dipole-bound excited states because neutral C2P (2Π) has a sufficiently large dipole moment. Photodetachment spectroscopy and resonant photoelectron spectroscopy are used to probe the nature of the dipole-bound states. Two dipole-bound excited states are observed with a binding energy of 37 cm-1, corresponding to the two spin-orbit states of neutral C2P (2Π1/2 and 2Π3/2). The current study demonstrates that the weakly bound electron in the dipole-bound excited states of C2P- is not spin-coupled to the electrons in the C2P core and can be considered as a quasi-free electron.

References

Mar 11, 2003·Annual Review of Physical Chemistry·Kenneth D Jordan, Feng Wang
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Jul 10, 2017·The Journal of Chemical Physics·Guo-Zhu ZhuLai-Sheng Wang
Feb 3, 2018·The Journal of Chemical Physics·Joseph CzeknerLai-Sheng Wang

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Citations

Oct 31, 2019·Physical Chemistry Chemical Physics : PCCP·Maria Elena CastellaniJan R R Verlet
Feb 17, 2021·The Journal of Physical Chemistry Letters·Do Hyung KangSang Kyu Kim
Oct 8, 2019·The Journal of Physical Chemistry Letters·Chen-Hui QianLai-Sheng Wang
Sep 9, 2020·The Journal of Physical Chemistry Letters·Dao-Fu YuanLai-Sheng Wang
Jul 1, 2020·The Journal of Physical Chemistry. a·Yong-Tian WangLai-Sheng Wang
Jul 18, 2019·The Journal of Physical Chemistry Letters·Guo-Zhu ZhuLai-Sheng Wang
Feb 25, 2020·The Journal of Physical Chemistry. a·Marissa A DobulisCaroline Chick Jarrold
Nov 6, 2021·The Journal of Physical Chemistry Letters·Wenjin CaoXue-Bin Wang

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