scholarly journals Theoretical prediction of shape-resonance-enhanced nuclear motion effects in molecular photionization

1979 ◽  
Author(s):  
Joseph L. Dehmer ◽  
Dan Dill ◽  
Scott Wallace

2020 ◽  
Vol 6 (31) ◽  
pp. eaba7762 ◽  
Author(s):  
S. Nandi ◽  
E. Plésiat ◽  
S. Zhong ◽  
A. Palacios ◽  
D. Busto ◽  
...  

Shape resonances in physics and chemistry arise from the spatial confinement of a particle by a potential barrier. In molecular photoionization, these barriers prevent the electron from escaping instantaneously, so that nuclei may move and modify the potential, thereby affecting the ionization process. By using an attosecond two-color interferometric approach in combination with high spectral resolution, we have captured the changes induced by the nuclear motion on the centrifugal barrier that sustains the well-known shape resonance in valence-ionized N2. We show that despite the nuclear motion altering the bond length by only 2%, which leads to tiny changes in the potential barrier, the corresponding change in the ionization time can be as large as 200 attoseconds. This result poses limits to the concept of instantaneous electronic transitions in molecules, which is at the basis of the Franck-Condon principle of molecular spectroscopy.



1979 ◽  
Vol 43 (14) ◽  
pp. 1005-1008 ◽  
Author(s):  
J. L. Dehmer ◽  
Dan Dill ◽  
Scott Wallace


2021 ◽  
Vol 47 (11) ◽  
pp. 15277-15281
Author(s):  
Rundong Wan ◽  
Kaicheng Jiang ◽  
Zhengfu Zhang ◽  
Ying Lei ◽  
Guocai Tian


2021 ◽  
pp. 127340
Author(s):  
Yajing Zhang ◽  
Shuo Cao ◽  
Yanzhou Wang ◽  
Xiaodong Jian ◽  
Libin Shi ◽  
...  


2021 ◽  
Vol 155 ◽  
pp. 106369
Author(s):  
K.V. Drozd ◽  
A.N. Manin ◽  
A.P. Voronin ◽  
G.L. Perlovich




2021 ◽  
Vol 776 ◽  
pp. 145934
Author(s):  
Swee Su Lim ◽  
Jean-Marie Fontmorin ◽  
Hai The Pham ◽  
Edward Milner ◽  
Peer Mohamed Abdul ◽  
...  


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