Low-temperature D(+) + H2 reaction: a time-dependent coupled wave-packet study in hyperspherical coordinates.

Area of Science:

• Chemical Physics
• Quantum Mechanics
• Computational Chemistry

Background:

• The H3+ system is fundamental in understanding chemical reactions.
• Accurate theoretical modeling of reactive processes is crucial for chemical physics.

Purpose of the Study:

• To validate a new coupled three-dimensional time-dependent wave-packet formalism.
• To accurately model the reactive non-charge transfer process in the H3+ system.

Main Methods:

• Utilized a novel coupled three-dimensional time-dependent wave-packet formalism.
• Employed hyperspherical coordinates for calculations.
• Used the lowest sheet of the double many-body expansion for singlet H3+.

Main Results:

• Achieved accurate results for the reactive non-charge transfer process.
• Demonstrated accuracy at low collision energies (down to 100 K).
• Showed good agreement with experimental data and time-independent calculations.

Conclusions:

• The proposed wave-packet formalism is a reliable method for studying H3+ reactions.
• The computational approach provides accurate insights into low-temperature chemical dynamics.