Adiabatic and vertical carbon 1s ionization energies in representative small molecules

Myrseth, Velaug; Bozek, John D.; Kukk, E.; Sæthre, Leif J.; Thomas, T. D.

doi:10.1016/s0368-2048(01)00321-8

Cited by 122 publications

(131 citation statements)

References 29 publications

Supporting

Mentioning

124

Contrasting

Order By: Relevance

“…For this purpose, the value of the C 1s binding energy of Myrseth et al [31] has been used. Our results for the energies of the states are summarized in Table II, and in graphical form in Fig.…”

Section: B Fit Resultsmentioning

confidence: 99%

“…For fast, event-based detection of electrons, the analyzer was retrofitted with a delay-line anode (Roentdek) [30]. The electron energies were calibrated to the adiabatic C 1s ionization potential of I p = 290.69(3) eV [31]. About 30 000 coincident events, after subtraction of random events, have been recorded in approximately 9 h. The signals in all TOF analyzers were summed.…”

Section: Methodsmentioning

confidence: 99%

“…All values are given in eV and the errors given in parentheses apply to the last digit(s). The error bars on E expt (Au) include statistical errors from our fit as given in Table I, as well as additional scaling errors of 0.1 eV for the calibration of the energy scale and 0.03 eV for the reference value of the C 1s ionization energy [31]. represented by the dashed black subspectrum in Fig.…”

Section: A Modeling Of the Datamentioning

confidence: 99%

See 2 more Smart Citations

Probing dissociative molecular dications by mapping vibrational wave functions

et al. 2011

View full text Add to dashboard Cite

We present high-resolution photoelectron-Auger-electron coincidence spectra of methane (CH 4 ). Since the vibrational structure in the photoelectron spectrum is resolved, the Auger spectra corresponding to different vibrational levels can be separated. The seven final states of CH 2+ 4 are either dissociative or metastable, but in any case are populated in a repulsive part of their potential-energy curve via the Auger decay. The Auger line shapes can therefore be obtained by mapping the vibrational wave functions of the core-hole state into energy space. We have implemented this connection in the data analysis. By simultaneously fitting the different Auger spectra, detailed information on the energies of the dicationic states and their repulsive potential-energy curves is derived.

show abstract

Section: B Fit Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: A Modeling Of the Datamentioning

confidence: 99%

See 1 more Smart Citation

Probing dissociative molecular dications by mapping vibrational wave functions

et al. 2011

View full text Add to dashboard Cite

show abstract

“…The calibration is thus based on the known adiabatic ionization energies for CO 2 and CF 4 . 7 The spectra have been fit by least squares with peak shapes that include the effects of resolution, lifetime, and the interaction of the photo and Auger electrons (post-collision interaction, or PCI). 8 The line shape given by eq 12 from van der Straten et al 9 was used to describe the effect of PCI.…”

Section: Experimental Procedures and Experimental Resultsmentioning

confidence: 99%

Carbon 1s Photoelectron Spectroscopy of Halomethanes. Effects of Electronegativity, Hardness, Charge Distribution, and Relaxation

et al. 2004

View full text Add to dashboard Cite

Carbon 1s ionization energies have been measured for 12 halomethanes. These together with earlier measurements provide 27 compounds for investigating the relationship between core-ionization energies and the electronegativity and hardness of the halogens. The ionization energies correlate nearly linearly with the sum of the electronegativities of the halogens attached to the central carbon. Both electronegativity and hardness play important roles in determining the ionization energy, and it is found that the linear relationship between ionization energy and electronegativity arises from an interplay of the electronegativity and hardness of the halogens and the length and ionicity of the carbon-halogen bond.

show abstract

“…Using the measured electron hit coordinate values (x) of the peak maxima, a dispersion curve E k (x) was made. The shift correction of the binding energy scale for the electron spectrum of uridine was done by using the C 1s binding energy of CO. 24 The non-coincident photoelectron spectrum was measured using the constant pass energy mode, scanning the lens acceleration to cover the desired kinetic energy range. The slit and pass energy values were the same as for the coincidence measurements.…”

Section: Methodsmentioning

confidence: 99%

Gas-phase study on uridine: Conformation and X-ray photofragmentation

Itälä

Kooser

Rachlew

et al. 2015

The Journal of Chemical Physics

View full text Add to dashboard Cite

Fragmentation of RNA nucleoside uridine, induced by carbon 1s core ionization, has been studied. The measurements by combined electron and ion spectroscopy have been performed in gas phase utilizing synchrotron radiation. As uridine is a combination of d-ribose and uracil, which have been studied earlier with the same method, this study also considers the effect of chemical environment and the relevant functional groups. Furthermore, since in core ionization the initial core hole is always highly localized, charge migration prior to fragmentation has been studied here. This study also demonstrates the destructive nature of core ionization as in most cases the C 1s ionization of uridine leads to concerted explosions producing only small fragments with masses ≤43 amu. In addition to fragmentation patterns, we found out that upon evaporation the sugar part of the uridine molecule attains hexagonal form. C 2015 AIP Publishing LLC. [http://dx

show abstract

Adiabatic and vertical carbon 1s ionization energies in representative small molecules

Cited by 122 publications

References 29 publications

Probing dissociative molecular dications by mapping vibrational wave functions

Probing dissociative molecular dications by mapping vibrational wave functions

Carbon 1s Photoelectron Spectroscopy of Halomethanes. Effects of Electronegativity, Hardness, Charge Distribution, and Relaxation

Gas-phase study on uridine: Conformation and X-ray photofragmentation

Contact Info

Product

Resources

About