Abstract
Three candidates for potential applications as new nonlinear optical materials were investigated using x-ray crystallography to probe the structure and powder second harmonic generation to elicidate the nonlinear response of the materials. Three structures are reported: 1-benzylimidazolium phenylphosphonate, 2-ethylimidazolium phenylphosphonate, and 2-methylimidazolium phenylphosphonate. Of these three salts two, 2-ethylimidazolium phenylphosphonate and 2-methylimidazolium phenylphosphonate, are noncentrosymmetric and therefore display a nonlinear optical response.
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Fuller, J., Heimer, N.E. Substituted imidazolium phenylphosphonate salts for nonlinear optical applications. J Chem Crystallogr 25, 129–136 (1995). https://doi.org/10.1007/BF01665988
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DOI: https://doi.org/10.1007/BF01665988