Threshold photoelectron spectroscopy of I2

Yencha, Andrew J.; Cockett, Martin C. R.; Goode, Jon G.; Donovan, Robert J.; Hopkirk, A.; King, G C

doi:10.1016/0009-2614(94)01060-9

Cited by 36 publications

(29 citation statements)

References 12 publications

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“…The calculated energy splittings of orbitals 6π u and 6π g are 0.6 eV and 0.8 eV, respectively, in good agreement with the high-resolution photoelectron spectrum [21].…”

Section: A Binding Energy Spectra Of Isupporting

confidence: 78%

“…The threshold of the linked terms for the ground state was 1.0 × 10 6 , and the unlinked terms were included as the products of the linked terms whose singleand double-configuration-interaction (SDCI) coefficients were larger than 5.0 × 10 −3 . Since the I 2 belongs to the D ∞h point 052714-2 [21]; the assignment based on the double group symmetry in the parentheses was given by this work. c The spectroscopic factor and parent orbital of each Dyson orbital are given in the parentheses.…”

Section: Theoretical and Experimental Detailsmentioning

confidence: 99%

“…1(b) was obtained by summing over all the azimuthal angles. With reference to the high-resolution PES [18,21], five individual Gaussian peaks were used for fitting the binding energy spectra in the outer valence range (8-13.5 eV).…”

Section: A Binding Energy Spectra Of Imentioning

confidence: 99%

“…The x-ray PES reported by Salaneck et al [19] and the He II PES reported by Bieri et al up to 25 eV [20] have shown that there are complicated satellite peaks around 20 eV. The high-resolution threshold photoelectron spectrum of the iodine molecule in the region 9-14 eV was investigated using synchrotron radiation [21]. * ningcg@tsinghua.edu.cn…”

Section: Introductionmentioning

confidence: 99%

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High-resolution electron-momentum spectroscopy of the valence orbitals of the iodine molecule

2012

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The valence orbitals of the iodine molecule (I 2 ) have been studied using the high-resolution electron-momentum spectroscopy at impact energies of 1200 and 600 eV. Experimental momentum distributions of outer valence orbitals were compared with the nonrelativistic, scalar relativistic, and spin-orbital relativistic calculations, as well as the relativistic pseudopotential calculation. The experimental cross-section ratios of 8J 3/2 g to 17J 1/2 g , 8J 3/2 u to 16J 1/2 u , and the electron-momentum profiles of orbital 16J 1/2 g clearly manifested the relativistic effects. In the inner valence region, the symmetry-adapted-cluster configuration-interaction theory was used to interpret the ionization spectrum and the electron-momentum distributions.

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“…The calculated energy splittings of orbitals 6π u and 6π g are 0.6 eV and 0.8 eV, respectively, in good agreement with the high-resolution photoelectron spectrum [21].…”

Section: A Binding Energy Spectra Of Isupporting

confidence: 78%

Section: Theoretical and Experimental Detailsmentioning

confidence: 99%

Section: A Binding Energy Spectra Of Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-resolution electron-momentum spectroscopy of the valence orbitals of the iodine molecule

2012

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“…4 and the ionization potentials and dissociation limits of iodine we can put limits on the KER we expect to see. The ionization potentials of I 2 have been measured using electron-momentum spectroscopy (EMS) and photo-electron spectroscopy (PES) [31,44].…”

Section: Discussionmentioning

confidence: 99%

Single ionization of molecular iodine

et al. 2017

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We performed a study of the single ionization of iodine, I 2 over a range of wavelengths. Single ionization of I 2 is unexpectedly found to have a contribution from inner molecular orbitals involving the 5s electrons. The I + I + dissociation channel was recorded through velocity map imaging and the kinetic energy release of each channel was determined with 2D fitting of the images. Most of the measured kinetic energy data were inconsistent with ionization to the X, A, and B states of I + 2 , implying ionization from deeper orbitals. A pump-probe Fourier transform technique was used to look for modulation at the X and A state vibrational frequencies, to see if they were intermediate states in a two step process. X and A state modulation was only seen for kinetic energy releases below 0.2 eV consistent with dissociation through the B state. From these results and intensity, polarization, and wavelength dependent experiments we found no evidence of bond softening, electron rescattering or photon mediation through the X or A states to higher energy single ionization channels.

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