Resonance signatures in the body-frame valence photoionization of CF4

K. A. Larsen; C. S. Trevisan; R. R. Lucchese; S. Heck; W. Iskandar; E. Champenois; A. Gatton; R. Moshammer; R. Strom; T. Severt; B. Jochim; D. Reedy; M. Weller; A. L. Landers; J. B. Williams; I. Ben-Itzhak; R. Dörner; D. Slaughter; C. W. McCurdy; Th. Weber; T. N. Rescigno

doi:10.1039/C8CP03637C

Resonance signatures in the body-frame valence photoionization of CF₄

K. A. Larsen,*^ab C. S. Trevisan,^c R. R. Lucchese,^a S. Heck,^ade W. Iskandar,

^a E. Champenois,^ab A. Gatton,^af R. Moshammer,^d R. Strom,^f T. Severt,^g B. Jochim,^g D. Reedy,^h M. Weller,^e A. L. Landers,^f J. B. Williams,^h I. Ben-Itzhak,^g R. Dörner,^e D. Slaughter,^a C. W. McCurdy,^ai Th. Weber*^a and T. N. Rescigno

*^a

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^a Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
E-mail: KLarsen@lbl.gov, TWeber@lbl.gov, TNRescigno@lbl.gov

^b Graduate Group in Applied Science and Technology, University of California, Berkeley, California 94720, USA

^c Department of Sciences and Mathematics, California State University, Maritime Academy, Vallejo, California 94590, USA

^d Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

^e J.W. Goethe Universität, Institut für Kernphysik, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany

^f Department of Physics, Auburn University, Alabama 36849, USA

^g J.R. Macdonald Laboratory, Kansas State University, Manhattan, Kansas 66506, USA

^h Department of Physics, University of Nevada Reno, Reno, Nevada 89557, USA

ⁱ Department of Chemistry, University of California, Davis, California 95616, USA

Abstract

We present a combined experimental and theoretical investigation of the electron dynamics and body-frame angular dependence of valence photo-single ionization of CF₄ and subsequent dissociation into CF₃⁺ and F. Ionization from a valence t₂ orbital shows overlapping shape resonances close to threshold that couple to the same total symmetry, leading to striking changes in the photoelectron angular distributions when viewed in the body-frame.

Physical Chemistry Chemical Physics

Resonance signatures in the body-frame valence photoionization of CF₄

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Resonance signatures in the body-frame valence photoionization of CF₄

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