Ground and Excited State Dissociation Dynamics of Ionized 1,1-Difluoroethene

2005 ◽  
Vol 109 (37) ◽  
pp. 8225-8235 ◽  
Author(s):  
E. Gridelet ◽  
D. Dehareng ◽  
R. Locht ◽  
A. J. Lorquet ◽  
J. C. Lorquet ◽  
...  
Keyword(s):  
Excited State ◽  
Dissociation Dynamics ◽  
State Dissociation

Excited-state dissociation dynamics of phenol studied by a new time-resolved technique

2018 ◽  
Vol 148 (7) ◽  
pp. 074306 ◽  
Author(s):  
Yen-Cheng Lin ◽  
Chin Lee ◽  
Shih-Huang Lee ◽  
Yin-Yu Lee ◽  
Yuan T. Lee ◽  
...  
Keyword(s):  
Excited State ◽  
Time Resolved ◽  
Dissociation Dynamics ◽  
State Dissociation ◽  
New Time

Visible photodissociation of the CO2 dimer cation: fast and slow dissociation dynamics in the excited state

2019 ◽  
Vol 21 (6) ◽  
pp. 3083-3091 ◽  
Author(s):  
Yuji Nakashima ◽  
Kenichi Okutsu ◽  
Keita Fujimoto ◽  
Yuri Ito ◽  
Manabu Kanno ◽  
...  
Keyword(s):  
Excited State ◽  
Angular Distributions ◽  
Ion Imaging ◽  
Imaging Experiment ◽  
Dissociation Dynamics ◽  
Slow Dissociation ◽  
532 Nm

Velocity and angular distributions of photofragment CO2+ ions produced from mass-selected (CO2)2+ at 532 nm excitation were observed in an ion imaging experiment.

Photodissociation of CO−3: Product kinetic energy measurements as a probe of excited state potential surfaces and dissociation dynamics

1990 ◽  
Vol 92 (10) ◽  
pp. 5935-5943 ◽  
Author(s):  
Joseph T. Snodgrass ◽  
Coleen M. Roehl ◽  
Petra A. M. van Koppen ◽  
William E. Palke ◽  
Michael T. Bowers
Keyword(s):  
Excited State ◽  
Kinetic Energy ◽  
Potential Surfaces ◽  
Dissociation Dynamics ◽  
State Potential

Dissociation dynamics of acetylene Rydberg states as a function of excited state lifetime

1998 ◽  
Vol 109 (13) ◽  
pp. 5231-5246 ◽  
Author(s):  
P. Löffler ◽  
E. Wrede ◽  
L. Schnieder ◽  
J. B. Halpern ◽  
W. M. Jackson ◽  
...  
Keyword(s):  
Excited State ◽  
Rydberg States ◽  
Excited State Lifetime ◽  
Dissociation Dynamics

Electronic Relaxation and Dissociation Dynamics in Formaldehyde: Pump Wavelength Dependence

2021 ◽  
Author(s):  
Tomoyuki Endo ◽  
Simon Neville ◽  
Philippe Lassonde ◽  
Chen Qu ◽  
Hikaru Fujise ◽  
...  
Keyword(s):  
Excited State ◽  
First Principles ◽  
Wavelength Dependence ◽  
Pump Wavelength ◽  
Electronic Relaxation ◽  
Excited State Dynamics ◽  
Dissociation Dynamics

The effect of the incident UV pump wavelength on the subsequent excited state dynamics, elec- tronic relaxation, and ultimate dissociation of formaldehyde is studied using first principles simu- lation and...

scholarly journals Photodissociation Dynamics of the Tert-Butyl Perthiyl Radical

2020 ◽  
Author(s):  
Bethan Nichols ◽  
Erin Sullivan ◽  
Daniel Neumark
Keyword(s):  
Excited State ◽  
Translational Energy ◽  
Energy Distributions ◽  
Dissociation Process ◽  
The Third ◽  
Available Energy ◽  
Three Body ◽  
A Minor ◽  
193 Nm ◽  
State Dissociation

<p>The photodissociation dynamics of the <i>tert</i>-butyl perthiyl (<i>t</i>-BuSS) radical are investigated by fast-beam coincidence translational spectroscopy. A fast (6-8 keV) beam of neutral <i>t</i>-BuSS radicals is produced via photodetachment of the corresponding anion, followed by photodissociation at 248 nm (5.00 eV) or 193 nm (6.42 eV) and coincident detection of the neutral products. Photofragment mass and translational energy distributions are obtained at both wavelengths. At 248 nm, the dominant product channel (90%) is found to be S loss, with a product translational energy distribution that peaks close to the maximum available energy and an anisotropic photofragment angular distribution, indicating dissociation along a repulsive excited state. A minor channel (10%) leading to the formation of S<sub>2</sub> + <i>t</i>-Bu is also observed. At 193 nm, both two- and three-body dissociation are observed. Formation of S<sub>2</sub> + <i>t</i>-Bu is the dominant two-body product channel, with multiple electronic states of the S<sub>2</sub> molecule produced via excited state dissociation processes. Formation of S + <i>t</i>-BuS is a minor two-body channel at this dissociation energy. The three-body channels are S<sub>2</sub> + H + isobutene, S<sub>2</sub> + CH<sub>3</sub> + propene, and S + SH + isobutene. The first two of these channels result from a sequential dissociation process in which loss of S<sub>2</sub> from <i>t</i>-BuSS results in ground state <i>t</i>-Bu with sufficient internal energy to undergo secondary fragmentation. The third three-body channel, S + SH + isobutene, is attributed to loss of internally excited HS<sub>2</sub> from <i>t</i>-BuSS, which then rapidly dissociates to form S + SH in an asynchronous concerted dissociation process. </p>

scholarly journals Evaluation of Dissociation Energies of the Diatomic (NdO, FeH and BaF) Molecules

2021 ◽  
Vol 8 (S1-Feb) ◽  
pp. 104-110
Author(s):  
Linga Raju ◽  
Ramesha M S
Keyword(s):  
Excited State ◽  
Curve Fitting ◽  
Dissociation Energies ◽  
State Dissociation ◽  
Good Agreement

The ground and excited state dissociation energies are determined by curve fitting techniques using the five parameters Hulburt-Hirschfelder (H-H) function. The estimated dissociation energies are 7.33± 0.15eV, 2.90 ± 0.13 eV and 6.04± 0.12eV for NdO, FeH and BaF respectively. The computed values are in good agreement with the literature values. The nature of binding is discussed in the light of the percentage ionic\characters of these molecules.

Controlling the dissociation dynamics of acetophenone radical cation through excitation of ground and excited state wavepackets

2015 ◽  
Vol 48 (16) ◽  
pp. 164002 ◽  
Author(s):  
Katharine Moore Tibbetts ◽  
Maryam Tarazkar ◽  
Timothy Bohinski ◽  
Dmitri A Romanov ◽  
Spiridoula Matsika ◽  
...  
Keyword(s):  
Excited State ◽  
Radical Cation ◽  
Dissociation Dynamics
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