Rotationally Resolved Vacuum Ultraviolet Laser Spectra of the37Cl211Σ+u←X1Σ+gTransition

Wang, P; Okuda, IV Iv; Dimov, S. S.; Lipson, R. H.

doi:10.1006/jmsp.1998.7558

Cited by 4 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the electronic configurations of ion-pair states 1 3 Σ u − and 2 3 Π u , it is seen that direct excitations to them involve two-electron excitation processes, and hence have low transition probabilities. The direct excitation to 1 1 Σ u + has a large transition dipole moment, which has already been observed in spectroscopic studies using photon energies ∼8 eV. − ,, However, for photon energies ∼12.5 eV, the vertical excitation to 1 1 Σ u + is out of the Franck−Condon region that is indicated in Figure by the wave packet of the vibrational ground-state Cl 2 (X 1 Σ g + ), therefore, the direct ion-pair dissociation via 1 1 Σ u + is difficult.…”

Section: Resultsmentioning

confidence: 84%

“…The direct excitation to 1 1 Σ u + has a large transition dipole moment, which has already been observed in spectroscopic studies using photon energies ∼8 eV. [19][20][21]29,30 However, for photon energies ∼12.5 eV, the vertical excitation to 1 1 Σ u + is out of the Franck-Condon region that is indicated in Figure 9 by the wave packet of the vibrational ground-state Cl 2 (X 1 Σ g + ), therefore, the direct ion-pair dissociation via 1 1 Σ u + is difficult. ) can be found in Table 2 using the index numbers.…”

Section: T H I S C O N T E N T Imentioning

confidence: 96%

See 1 more Smart Citation

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Zhou

Hao

2008

J. Phys. Chem. A

View full text Add to dashboard Cite

The ion-pair dissociation dynamics of Cl2 -->(XUV) Cl(-)((1)S0) + Cl(+)((3P(2,1,0)) in the range 12.41-12.74 eV have been studied employing coherent extreme ultraviolet (XUV) radiation and the velocity map imaging) method. The ion-pair yield spectrum has been measured, and 72 velocity map images of Cl(-)((1)S0) have been recorded for the peaks in the spectrum. From the images, the branching ratios among the three spin-orbit components Cl(+)((3)P2), Cl(+)((3)P1) and Cl(+)((3)P0) and their corresponding anisotropic parameters beta have been determined. The ion-pair dissociation mechanism is explained by predissociation of Rydberg states converging to ion-core Cl2(+)(A(2)Pi(u)). The Cl(-)((1)S0) ion-pair yield spectrum has been assigned based on the symmetric properties of Rydberg states determined in the imaging experiments. The parallel and perpendicular transitions correspond to the excitation to two major Rydberg series, [A(2)Pi(u)]3d pi(g), (1)Sigma(u)(+) and [A(2)Pi(u)]5s sigma(g), (1)Pi(u), respectively. For the production of Cl(+)((3)P0), it is found that all of them are from parallel transitions. But for Cl(+)((3)P1), most of them are from perpendicular transitions. The production of Cl(+)((3)P2) is the major channel in this energy region, and they come from both parallel and perpendicular transitions. It is found that for most of the predissociations the projection of the total electronic angular momentum on the molecular axis (Omega) is conserved. The ion-pair dissociation may be regarded as a probe for the symmetric properties of Rydberg states.

show abstract

Section: Resultsmentioning

confidence: 84%

Section: T H I S C O N T E N T Imentioning

confidence: 96%

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Zhou

Hao

2008

J. Phys. Chem. A

View full text Add to dashboard Cite

show abstract

“…However, the transition dipole moments for them are very small since their electronic orbitals differ by two with those of the ground state of Cl 2 in the Franck−Condon region. In contrast to this, the excitation to 1 1 Σ u + has a large transition dipole moment, and it has already been observed in spectroscopic studies. − , However, for photon energies ∼13.3 eV, the vertical excitation is out of the Franck−Condon region. Hence, the direct ion-pair dissociation via 1 1 Σ u + is difficult.…”

Section: Resultsmentioning

confidence: 88%

“…In contrast to this, the excitation to 1 1 Σ u + has a large transition dipole moment, and it has already been observed in spectroscopic studies. [8][9][10]33 However, for photon energies ∼13.3 eV, the vertical excitation is out of the Franck-Condon region. Hence, the direct ion-pair dissociation via 1 1 Σ u + is difficult.…”

Section: Diabatic Potential Energy Curwes (Pecs) and Adiabatic State ...mentioning

confidence: 99%

Ion-Pair Dissociation Dynamics of Cl₂ in the Range 13.26−13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method

Hao

Zhou

2009

J. Phys. Chem. A

View full text Add to dashboard Cite

The ion-pair dissociation dynamics of Cl2 in the range 13.26-13.73 eV have been studied employing coherent extreme ultraviolet radiation (XUV) and the velocity map imaging method. The Cl- (1S(0)) ion-pair yield spectrum has been measured, and 80 velocity map images of Cl- (1S(0)) have been recorded for the strong peaks in the spectrum. From the images, two dissociation channels corresponding to Cl- (1S(0)) + Cl+ (3P(j)) and Cl- (1S(0)) + Cl+ (1D(2)) have been found. The branching ratios among the fragments Cl+ (3P(0,1)), Cl+ (3P(2)), and Cl+ (1D(2)) and their corresponding anisotropy parameters beta have been determined. It is concluded that the ion-pair dissociation occurs via the predissociation of Rydberg states and its dynamics strongly depend on the excitation energies. The perpendicular and parallel transitions correspond to the excitation to two major Rydberg series converging to ion-core Cl2+ (A2Pi(u)), ...sigma(g)2pi(u)3pi(g)4[A2Pi(u)]ns sigma(g), 1Pi(u) (n = 6,7), and ...sigma(g)2pi(u)3pi(g)4[A2Pi(u)]nd pi(g), 1Sigma(u)+ (n = 4,5), respectively. For the production of fragments Cl+ (1D(2)), it is proposed that the perpendicular transitions are from the excitation to Rydberg states [A2Pi(u)]ns sigma(g), 1Pi(u) that is predissociated by ion-pair state 2 1Pi(u), while the parallel transitions are from the excitation to [A2Pi(u)]nd pi(g), 1Sigma(u)+ that interacts with ion-pair states 0(u)+ (1D(2)), 0(u)+ (3P(2)), and 0(u)+ (3P(0)).

show abstract

203 Cl2 X 1Σg + Dichlorine

Hüttner

2012

Diamagnetic Diatomic Molecules. Part 1

View full text Add to dashboard Cite

Rotationally Resolved Vacuum Ultraviolet Laser Spectra of the37Cl211Σ+u←X1Σ+gTransition

Cited by 4 publications

References 14 publications

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl₂ in the Range 13.26−13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method

203 Cl2 X 1Σg + Dichlorine

Contact Info

Product

Resources

About

Rotationally Resolved Vacuum Ultraviolet Laser Spectra of the37Cl211Σ+u←X1Σ+gTransition

Cited by 4 publications

References 14 publications

Ion-Pair Dissociation Dynamics of Cl2: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl2: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl2 in the Range 13.26−13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method

203 Cl2 X 1Σg + Dichlorine

Contact Info

Product

Resources

About

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl₂: Adiabatic State Correlation

Ion-Pair Dissociation Dynamics of Cl₂ in the Range 13.26−13.73 eV Studied by Using XUV Laser and the Velocity Map Imaging Method