Second harmonic generation from the single crystals of N-substituted 4-cyanoanilines was written by Hashimoto, H.;Okada, Y.;Okamoto, N.;Matsushima, R.. And the article was included in Journal of Luminescence in 2000.Category: nitriles-buliding-blocks This article mentions the following:
Six N-substituted derivatives of 4-cyanoaniline (pCA) were synthesized and their phys. and optical properties were examined in the search for 2nd-order nonlinear optical materials with enough crystal dimensions together with blue-light transparency. Among the derivatives examined, N-diphenylmethyl-pCA and N-2-naphthylmethyl-pCA afforded single crystals that lack a center of symmetry. Although the 2nd harmonic (SH) activities of these derivatives were not enough for the practical purposes, their cut-off wavelengths were shorter than 330 nm and showed sufficient blue-light transparency. Quant. prediction of the SH activity was also attempted. In the experiment, the researchers used many compounds, for example, 4-(Benzylamino)benzonitrile (cas: 10282-32-3Category: nitriles-buliding-blocks).
4-(Benzylamino)benzonitrile (cas: 10282-32-3) belongs to nitriles. Nitrile carbon shifts are in the range of 115–125 ppm whereas in isonitriles the shifts are around 155–165 ppm. Industrially, the main methods for producing nitriles are ammoxidation and hydrocyanation. Both routes are green in the sense that they do not generate stoichiometric amounts of salts.Category: nitriles-buliding-blocks
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts