Vibrational predissociation and intramolecular vibrational relaxation in electronically excited s‐tetrazine–argon van der Waals complex

1983 ◽  
Vol 78 (6) ◽  
pp. 3415-3434 ◽  
Author(s):  
Donald V. Brumbaugh ◽  
Jonathan E. Kenny ◽  
Donald H. Levy
Keyword(s):  
Vibrational Relaxation ◽  
Van Der Waals ◽  
Vibrational Predissociation ◽  
Van Der Waals Complex ◽  
Electronically Excited ◽  
Intramolecular Vibrational Relaxation

The vibrational predissociation dynamics of ArCl2: Intramolecular vibrational relaxation in a triatomic van der Waals molecule?

1988 ◽  
Vol 89 (5) ◽  
pp. 2829-2838 ◽  
Author(s):  
Dwight D. Evard ◽  
Craig R. Bieler ◽  
Joseph I. Cline ◽  
N. Sivakumar ◽  
Kenneth C. Janda
Keyword(s):  
Vibrational Relaxation ◽  
Van Der Waals ◽  
Vibrational Predissociation ◽  
Intramolecular Vibrational Relaxation

Vibrational predissociation dynamics of the aniline–neon Van der Waals complex: an ab initio study

2004 ◽  
Vol 303 (1-2) ◽  
pp. 143-150 ◽  
Author(s):  
I López-Tocón ◽  
J.C Otero ◽  
J Soto ◽  
M Becucci ◽  
G Pietraperzia ◽  
...  
Keyword(s):  
Ab Initio ◽  
Van Der Waals ◽  
Ab Initio Study ◽  
Vibrational Predissociation ◽  
Van Der Waals Complex

Vibrational predissociation dynamics in the vibronic states of the aniline–neon van der Waals complex: New features revealed by complementary spectroscopic approaches

1999 ◽  
Vol 110 (20) ◽  
pp. 9961-9970 ◽  
Author(s):  
M. Becucci ◽  
N. M. Lakin ◽  
G. Pietraperzia ◽  
E. Castellucci ◽  
Ph. Bréchignac ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Vibrational Predissociation ◽  
Van Der Waals Complex ◽  
Vibronic States

scholarly journals Intramolecular Vibrational Relaxation in Electronically Excited States

1983 ◽  
Vol 2 (5-6) ◽  
pp. 253-269 ◽  
Author(s):  
R. Voltz ◽  
A. Boeglin ◽  
A. A. Villaeys ◽  
S. H. Lin
Keyword(s):  
Vibrational Relaxation ◽  
Memory Function ◽  
Coherent Motion ◽  
Zeroth Order ◽  
Mechanical Mixing ◽  
Time Resolved ◽  
Physical Conditions ◽  
Electronically Excited ◽  
Intramolecular Vibrational Relaxation

A density matrix approach for describing intramolecular dynamics, with special application to vibrational relaxation in excited electronic states, is presented. We derive the master equations governing intramolecular transfer of excitation energy between the states in a zeroth-order basis defined by considering the excitation and detection conditions in the time-resolved experiments. It is shown that, in this formalism, the memory function plays a central role. We note that the form of intramolecular memory is determined by the importance of quantum mechanical mixing of the zeroth-order states. A distinction is made between the subsystems of states with strong and weak mixing properties; while the former account for quasiperiodic character of coherent motion, the latter display a Markovian behavior. The physical conditions fixing the relative importance of quasiperiodic and statistical dynamics in individual systems are discussed. In the application to time resolved intramolecular vibrational relaxation, special consideration is given to the nature of the initially excited doorway states and the intermode couplings. The symmetry restrictions and the possible role of rotational motion in vibrational relaxation are also discussed, before considering the recent results obtained by Zewail et al. with anthracene in the first excited singlet state.

Intramolecular vibrational relaxation in a triatomic van der Waals molecule: ArCl2

1992 ◽  
Vol 96 (3) ◽  
pp. 2404-2407 ◽  
Author(s):  
Nadine Halberstadt ◽  
Alberto Beswick ◽  
Octavio Roncero ◽  
Kenneth C. Janda
Keyword(s):  
Vibrational Relaxation ◽  
Van Der Waals ◽  
Intramolecular Vibrational Relaxation
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