Crystal growth, Dielectric and Thermal Studies on N-Methyl-4-Nitroaniline: Isophthalic Acid Molecular Adduct Crystals

Ravikumar Lakshmi and P. Prabukanthan
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Ravikumar Lakshmi: Material Chemistry Lab, Department of Chemistry, Muthurangam Government Arts College, Vellore, Tamil Nadu
P. Prabukanthan: Material Chemistry Lab, Department of Chemistry, Muthurangam Government Arts College, Vellore, Tamil Nadu

European Journal of Engineering and Technology Research, 2017, vol. 2, issue 9, 7-11

Abstract: Organic compound N-methyl-4-nitroaniline isophthalic acid (NMNAIPA) needle shaped single crystals with a dimension of 4x1x1 cm3 were grown by slow evaporation technique in methanol as solvent at ambient temperature. The grown single crystals have been analyzed through powder X-ray diffraction (XRD), proton nuclear magnetic resonance (1HNMR), carbon NMR (13CNMR), Fourier transform infrared (FT-IR), Raman spectra and UV-Vis spectra. Based on powder XRD patterns, the as-grown NMNAIPA single crystal was a good crystalline in nature. The various planes of reflection have been identified from the powder XRD pattern. It belongs to the monoclinic crystal system. The presences of functional groups were identified from FT-IR and Raman spectra. UV-Vis-NIR spectral analysis showed 74% transmission in the visible region for NMNAIPA crystal. The dielectric constant and dielectric loss of the as-grown NMNAIPA single crystal was studied as a function of frequency and temperature. Thermo gravimetric (TG) and differential scanning calorimetric (DSC) techniques were carried out to characterize the thermal behavior and stability of as-grown NMNAIPA single crystal. It has thermal stability around 421 K. The nonlinear optical (NLO) activity test using a pulsed Nd:YAG laser confirms the generation of second harmonics and it shows 1.25 times relatively greater than KDP.

Keywords: Dielectric Studies; Organic NLO Single Crystal; Synthesis; Spectral Studies; Thermal Property (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:2:y:2017:i:9:id:60454

DOI: 10.24018/ejeng.2017.2.9.454

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