The time-dependent discrete variable representation (TDDVR) method to the quantum dynamics on ethylene (C2H4+)

Dr. Subhankar Sardar

Department of Chemistry, Bhatter College, Dantan, Paschim Medinipur, West Bengal, India

 Volume VII, Number 1, 2017 I Full Text PDF

Article DOI: 10.25274/bcjms.v7n1.psc-v7-01-01

Abstract

The molecular dynamics of ethylene radical cation (C2H4+) is investigated after excitation from the ground state (X2B2u) to the first excited electronic state (A2B2g) by using the time-dependent discrete variable representation (TDDVR) method. The investigation is being carried out with a realistic 3-mode model Hamiltonian of C2H4molecule. We perform dynamics on the model Hamiltonian consisting most important three vibrational modes to calculate the spectral profile of C2H4by using TDDVR approach. The TDDVR calculated ultraviolet photoelectron (PE) spectra shows reasonably good agreement with a previous theoretical and the experimental results. It is now established that the TDDVR approach for those molecular systems where quantum mechanical description is needed in a restricted region, is a good compromise between accuracy and speed.

KeywordsQuantum Dynamics, Time Dependent Discrete Variable Representation method, Ethylene

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