Anbarasu, S. and Bhagavannarayana, G. and Vijayan, N. and MartinaMejeba, X. and Devarajan, Prem Anand (2014) Growth and characterization of a new organic nonlinear optical crystal: Vanillylideneaniline. Optik, 125 (16). 4295-4301 . ISSN 0030-4026

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Abstract

Vanillylideneaniline with chemical formula C14H13NO2 (VAN), a second order nonlinear optical (SONLO) organic single crystal was synthesized and grown for the first time from dimethyl formamide (DMF) employing slow solvent evaporation technique. Single crystal X-ray diffraction data reveals that the crystal belongs to noncentrosymmetric orthorhombic space group C222(1). The high-resolution diffraction curve containing single peak with full width at half maximum (FWHM) of 62 arcs ascertains VAN was perfectly crystallized and free from structural grain boundaries. The formation of the material was confirmed quantitatively by MIR, H-1(1) and C-13 NMR spectral analyses. The UV-vis-NIR spectrum reveals the percentage of the transmission of VAN crystal in the entire region. The variations of dielectric constant (epsilon(r)) and dielectric loss (D) with frequency at different temperatures were investigated. The SHG of VAN crystal is confirmed by Kurtz Powder technique. The mechanical strength of the crystal was estimated by Vickers hardness test. VAN has yield strength of 8.70 MPa. Thus the grown organic VAN single crystal can be recommended as a promising candidate for SONLO application and device fabrication technology.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	Vanillylideneaniline (VAN) HRXRD FTIR UV–vis–NIR 1H1 and 13C NMR
Subjects:	Optics
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	05 Oct 2015 11:26
Last Modified:	05 Oct 2015 11:26
URI:	http://npl.csircentral.net/id/eprint/1314

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