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    Analytic second derivatives of the relativistic energy for the calculation of electric response properties are derived utilizing the normalized elimination of the small component (NESC) method. Explicit formulas are given for electric static dipole polarizabilities and infrared intensities by starting at the NESC representation of electric dipole moments. The analytic derivatives are implemented in an existing NESC program and applied to calculate dipole moments, polarizabilities, and the infrared spectra of gold- and mercury-containing molecules as well as some actinide molecules. Comparison with experiment reveals the accuracy of NESC second order electric response properties.

    Citation

    Wenli Zou, Michael Filatov, Dieter Cremer. Analytic calculation of second-order electric response properties with the normalized elimination of the small component (NESC) method. The Journal of chemical physics. 2012 Aug 28;137(8):084108


    PMID: 22938219

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