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Title: A reactant-coordinate-based wave packet method for full-dimensional state-to-state quantum dynamics of tetra-atomic reactions: Application to both the abstraction and exchange channels in the H + H2O reaction

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4941671· OSTI ID:1469675

Here, an efficient and accurate wave packet method is proposed for the calculation of the state-to-state S-matrix elements in bimolecular reactions involving four atoms. This approach propagates an initial state specific wave packet in reactant Jacobi coordinates. The projection in product channels is carried out on projection planes, which have one less degree of freedom, by transforming both the time-dependent wave packet and final product states into a set of intermediate coordinates. This reactant-coordinate-based method is more efficient than product-coordinate-based methods because it typically requires a smaller number of basis functions or grid points and allows the determination of S-matrix elements for multiple product channels from a single propagation. This method is demonstrated in calculating the (Jtot = 0) state-to-state S-matrix elements for both the abstraction and exchange channels of the H + H2O reaction.

Research Organization:
Univ. of New Mexico, Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-05ER15694
OSTI ID:
1469675
Alternate ID(s):
OSTI ID: 1237868
Journal Information:
Journal of Chemical Physics, Vol. 144, Issue 6; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

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Cited By (5)

A new potential energy surface of the OH 2 + system and state-to-state quantum dynamics studies of the O + + H 2 reaction journal January 2018
Fermi resonance controlled product branching in the H + HOD reaction journal January 2018
Quantum wavepacket method for state-to-state reactive cross sections in hyperspherical coordinates journal November 2018
An interaction-asymptotic region decomposition method for general state-to-state reactive scatterings journal April 2019
Dynamics studies of the H + HBr reaction: Based on a new potential energy surface journal November 2019