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Comparison of the Transition Dipole Moments Calculated by TDDFT with High Level Wave Function Theory
1Department of Chemistry and Forensics, School of Science and Technology , Nottingham Trent University , Clifton Lane , Nottingham NG11 8NS , United Kingdom.
Abstract:
Time dependent density functional theory (TDDFT) is widely used to simulate the excited states of organic and inorganic molecules. We calculate the transition dipole moments (TDM) for a selection of commonly employed exchange-correlation functionals for a test set of 15 molecules and compare them with both linear response CC3 and ADC(3) calculated TDMs, which we use as a benchmark. Contemporary range-separated hybrid functionals perform the best for both direction and magnitude, while "pure" local functionals should be employed with caution.
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