Calculation of macroscopic first- and third-order optical susceptibilities for the benzene crystal

H. Reis, S. Raptis, M. G. Papadopoulos, R. H C Janssen, D. N. Theodorou, R. W. Munn

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    Starting from a set of high-level ab initio frequency-dependent molecular first-and third-order polarizabilities, the macroscopic first-order (linear) and third-order (cubic) susceptibilities of the benzene crystal are calculated. Environmental effects are taken into account using a rigorous local-field theory and are compared with the anisotropic Lorentz field factor approach. The experimentally determined first-order susceptibility of crystalline benzene is accurately reproduced. Dispersion curves for the first-order susceptibility and results for electric-field-induced second-harmonic generation and third-harmonic generation experiments are predicted. Comparison with similar calculations conducted in the course of molecular simulations of liquid benzene shows that the theoretical results for the two phases are of comparable accuracy. Overall, the results show that for the fairly compact nonpolar benzene molecules, environmental effects on the effective molecular response are small.

    Original languageEnglish
    Pages (from-to)384-390
    Number of pages7
    JournalTheoretical Chemistry Accounts
    Issue number6
    Publication statusPublished - Oct 1998


    • Benzene crystal
    • Hyperpolarizabilities
    • Polarizabilities
    • Susceptibilities


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