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Study on the Second Order Optical Properties of N-(2,4-dichloro)-salicylaldimine
(Verlag der Zeitschrift fur Naturforschung, 2005) Karakaş, Aslı; Ünver, Hüseyin; Elmalı, Ayhan; Svoboda, Ingrid
N-(2,4-Dichloro)-salicylaldimine was synthesized, characterized by elemental analysis, FT-IR, and UV-visible spectroscopy, and its crystal structure was determined. The title compound is almost planar and contains short intramolecular O-H... N hydrogen bonds [O1-N1 2.601(1) Å]. It remains transparent in the visible region and has solvatochromic behavior in the UV region in the range 198 349 nm, implying non-zero microscopic first hyperpolarizability. The ab-initio quantum mechanical calculations (finite field second-order Møller Plesset perturbation theory) of the studied compound have been carried out to compute the electric dipole moment (?) and the first hyperpolarizability (?) values. The ab-initio results also show that this ligand might have microscopic nonlinear optical behavior with non-zero values.