Photoelectron spectroscopy of reactive intermediates using synchrotron radiation

Barr, Jonathan; Beeching, Levi; Fanis, A. De; Dyke, John M.; Gamblin, Stuart D.; Hooper, N.; Morris, Alan; Stranges, Stefano; West, John B.; Wright, Andrew E.; Wright, Timothy G.

doi:10.1016/s0368-2048(00)00145-6

Cited by 15 publications

(7 citation statements)

References 26 publications

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“…All species were generated via H-abstraction from B 2 H 6 by fluorine atoms created in a microwave discharge. The combination of this technique with photoionization was pioneered by Dyke and coworkers [7][8][9] and by Ruscic and Berkowitz [10][11][12] . The latter also recorded first photoionisation mass spectra of B x H y compounds.…”

Section: A Introductionmentioning

confidence: 99%

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Mukhopadhyay

Schleier

Fischer

et al. 2020

Phys. Chem. Chem. Phys.

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Section: A Introductionmentioning

confidence: 99%

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Mukhopadhyay

Schleier

Fischer

et al. 2020

Phys. Chem. Chem. Phys.

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“…Carbon monosulfide (CS) and its ion (CS + ) are an important molecule and molecular ion in astronomy, and have received much attention in spectroscopy [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] and astrophysics. [16][17][18] CS and CS + are usually formed in plasmas of sulfur and carbon using ultraviolet photolysis and the collisional dissociation of CS 2 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement-Mode LaLuO₃–AlGaN/GaN Metal–Insulator–Semiconductor High-Electron-Mobility Transistors Using Fluorine Plasma Ion Implantation

Yang¹,

Huang²,

Schnee³

et al. 2013

Jpn. J. Appl. Phys.

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Carbon monosulfide molecular ion (CS + ), which plays an important role in various research fields, has long been attracting much interest. Because of the unstable and transient nature of CS + , its electronic states have not been well investigated. In this paper, the electronic states of CS + are studied by employing the internally contracted multireference configuration interaction method, and taking into account relativistic effects (scalar plus spin-orbit coupling). The spinorbit coupling effects are considered via the state-interacting method with the full Breit-Pauli Hamiltonian. The potential energy curves of 18 Λ-S states correlated with the two lowest dissociation limits of CS + molecular ion are calculated, and those of 10 lowest Ω states generated from the 6 lowest Λ-S states are also worked out. The spectroscopic constants of the bound states are evaluated, and they are in good agreement with available experimental results and theoretical values. With the aid of analysis of Λ-S composition of Ω states at different bond lengths, the avoided crossing phenomena in the electronic states of CS + are illuminated. Finally, the single ionization spectra of CS (X 1 Σ + ) populating the CS + (X 2 Σ + 1/2 , A 2 Π 3/2 , A 2 Π 1/2 , and B 2 Σ + 1/2 ) states are simulated. The vertical ionization potentials for X 2 Σ + 1/2 , A 2 Π 3/2 , A 2 Π 1/2 , and B 2 Σ + 1/2 states are calculated to be 11.257, 12.787, 12.827, and 15.860 eV, respectively, which are accurate compared with previous experimental results, within an error margin of 0.08 eV∼0.2 eV.

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“…Unfortunately they are not easily combined with pulsed radical sources, like photolysis, 10 electric discharges and flash pyrolysis 11,12 due to their high repetition rate on the order of typically several MHz. Therefore, only few reactive species have been studied with synchrotron light, [13][14][15][16][17][18][19][20][21] although several studies using VUV lamps exist as well. 22,23 For most species only photoionisation efficiency (PIE) curves have been reported.…”

Section: Introductionmentioning

confidence: 99%

The VUV photochemistry of radicals: C₃H₃and C₂H₅

Schüßler

Roth

Gerber

et al. 2005

Phys. Chem. Chem. Phys.

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The VUV photochemistry of the radicals propargyl, C3H3, and ethyl, C2H5, is investigated using synchrotron radiation. The radicals are produced by flash pyrolysis from propargyl bromide and ethyl iodide, respectively. It is shown that dissociative photoionisation of propargyl is associated with loss of a H-atom, leading to formation of c-C3H2+. The process sets in between 12.5 and 13 eV, in agreement with computations. The alternative pathway, leading to C3H(+) + H2 is only tentatively observed at energies above 15.5 eV. The onset for dissociative photoionisation of ethyl according to C2H5 --> C2H3(+) + H2 is observed at 11.6 eV, roughly 1 eV higher than expected from ab initio calculations. In addition we monitor the hitherto unobserved three-body dissociative ionisation of the precursor molecules. The process C2HsI --> C2H3 + H2 + I sets in above 12.7 eV, the dissociative ionisation of C3H3Br --> C3H+ + H2 + Br above 15 eV.

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Photoelectron spectroscopy of reactive intermediates using synchrotron radiation

Cited by 15 publications

References 26 publications

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Enhancement-Mode LaLuO₃–AlGaN/GaN Metal–Insulator–Semiconductor High-Electron-Mobility Transistors Using Fluorine Plasma Ion Implantation

The VUV photochemistry of radicals: C₃H₃and C₂H₅

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Photoelectron spectroscopy of reactive intermediates using synchrotron radiation

Cited by 15 publications

References 26 publications

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH2, BH, and BF

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH2, BH, and BF

Enhancement-Mode LaLuO3–AlGaN/GaN Metal–Insulator–Semiconductor High-Electron-Mobility Transistors Using Fluorine Plasma Ion Implantation

The VUV photochemistry of radicals: C3H3and C2H5

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Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Photoelectron spectroscopy of boron-containing reactive intermediates using synchrotron radiation: BH₂, BH, and BF

Enhancement-Mode LaLuO₃–AlGaN/GaN Metal–Insulator–Semiconductor High-Electron-Mobility Transistors Using Fluorine Plasma Ion Implantation

The VUV photochemistry of radicals: C₃H₃and C₂H₅