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A simple method for the estimation of hyperpolarisabilities: Application to diamino substituted dicyanoquinodimethane molecules

  • Physical And Theoretical
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Abstract

Two-level hyperpolarisabilities,β 2 of a series of amine substituted dicyanoquinodimethane molecules were investigated utilising a simple solvatochromic method developed by us for the determination of excited state dipole moments. The hyperpolarisability,β as well as the two-level approximation to it,β 2, of these quinonoid systems were estimated computationally. Using a parallel study on a set of well known coumarin dyes and their reported electric field induced second harmonic generation (EFISHG)β for calibration, the experimental staticβ’s of quinonoid molecules are estimated and found to the very large, approximately in the range of −50 to −60×10−30 e.s.u.

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  1. M Ravi

    Present address: Department of Physics, University of Durham, South Road, DH 1 3LE, Durham, UK

Authors and Affiliations

  1. School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India

    M Ravi

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  1. M Ravi
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Ravi, M. A simple method for the estimation of hyperpolarisabilities: Application to diamino substituted dicyanoquinodimethane molecules. Proc. Indian Acad. Sci. (Chem. Sci.) 110, 133–141 (1998). https://doi.org/10.1007/BF02871150

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  • DOI: https://doi.org/10.1007/BF02871150

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