Single crystals of organic optical material, 2-[2-(4-Diethylamino-phenyl)-vinyl]-1-methyl-pyridinium naphthalene-2-sulfonate (DESNS) (15×10×9 mm(3)) were grown by a slow evaporation technique at room temperature using methanol-acetonitrile (1:1) mixed solvent. The molecular structure of the grown crystal was confirmed by single crystal X-ray diffraction studies, and it belongs to orthorhombic system with space group Pbca and the unit cell dimentions are a=11.5148(3) Å, b=15.4352(4) Å, c=27.2187(7) Å, Z=8. The crystallinity of the title crystals was confirmed from the powder XRD pattern. The presence of functional groups of the title crystal was confirmed from the FTIR spectral studies. The transparent range and cut off wavelength of the grown crystal was studied by the UV-Vis-NIR spectroscopic analysis. The mechanical properties and thermal behavior of the grown crystals were studied from Vickers microhardness test and TG/DTA.

Kalainathan S

Department of Physics

School of Advanced Sciences

Vellore Campus

Ruban Kumar A

Senthil K

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Optics & Laser Technology

Synthesis, growth and characterization of organic nonlinear optical single crystal 1,3-bis(4-methoxyphenyl)prop-2-en-1-one (BMP) by vertical Bridgman technique

New stilbazolium derivatives chromophores with donor-π-acceptor structure: 2-[2-(4-Diethylamino-phenyl)-vinyl]-1-methyl-pyridinium naphthalene-2-sulfonate (DESNS) have been synthesized via Knoevenagel condensations reaction. Luminescence property of the grown crystal indicates that the DESNS is an excellent orange and red light emitting material. The chemical etching studies made on the surface of DESNS and to assess the perfection of the grown crystals, which reveals that formation of layer growth pattern. Both the values of dielectric constant and dielectric loss of the crystal were calculated by varying the frequencies at ambient temperature. The effective third-order nonlinear optical susceptibility χ (3) of the grown crystal have been investigated by Z-scan technique using He-Ne laser at 632.8nm, which is found to be χ (3) = 3.509× 10 -4 esu. The negative sign of the nonlinear refractive index n 2 = 5.1242×10 -12 m 2 /W indicates that title material exhibits self-defocusing optical nonlinearity. © 2015 AIP Publishing LLC.

AIP Conference Proceedings

Investigation on third-order optical nonlinearities of newly synthesized stilbazolium derivative crystal by Z-scan technique

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Crystal Growth & Design

Growth and Characterization of the NLO Crystal 4-Dimethylamino-N-methyl-4-stilbazolium Tosylate (DAST)

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1-Methyl-4-(4-methylstyryl)pyridinium 4-methylbenzenesulfonate

(E)-2-[4-(Diethylamino)styryl]-1-methylpyridinium 4-methoxybenzenesulfonate monohydrate

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Synthesis, growth, crystal structure, spectral, thermal, mechanical and optical studies of stilbazolium derivative single crystal: 2-[2-(4-Diethylamino-phenyl)-vinyl]-1-methyl-pyridinium naphthalene-2-sulfonate (DESNS)

Journal	Data powered by TypesetSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Publisher	Data powered by TypesetElsevier BV
ISSN	1386-1425
Open Access	No