Shanmugavadivu, T. and Dhandapani, M. and Naveen, S. and Lokanath, N. K. (2017) Synthesis, structural and spectral characterization of a novel NLO crystal N,N′-diphenylguanidinium picrate: diacetone solvate. Journal of Molecular Structure, 1144. 237 - 245. ISSN 0022-2860
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An organic NLO active material N,N′-diphenylguanidinium picrate: diacetone solvate (C13H14N3+. C6H2N3O7−. 2C3H6O) (DPGPD) was synthesized and single crystals were grown by slow evaporation-solution growth technique at room temperature. DPGPD crystallizes in monoclinic crystal system with noncentrosymmetric space group, Cc confirmed by single crystal X-ray diffraction analysis. The presence of various functional groups was identified from FT-IR spectral analysis and the proton transfer during the formation of compound was confirmed by NMR spectroscopic techniques. The thermal stability was investigated by TG/DTA analyses. Optical transmittance was measured by UV–Vis–NIR spectroscopy and band gap energy was calculated. Photoluminescence spectrum was used to explore its applicability towards laser diodes. Dielectric property of the material was ascertained at different temperatures and it is found that the grown crystal has higher dielectric constant in low frequencies. Photoconductivity study revealed that DPGPD exhibits positive photoconductivity. SHG property was found to be 0.6 times higher than that of KDP.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Single crystal X-ray diffraction, UV-NIR, Dielectrics, Thermal analysis, Photoluminescence, Hyperpolarizability |
| Subjects: | C Chemical Science > Chemistry D Physical Science > Physics |
| Divisions: | Department of > Institution of Excellence Department of > Physics |
| Depositing User: | C Swapna Library Assistant |
| Date Deposited: | 20 Jun 2019 06:24 |
| Last Modified: | 20 Jun 2019 06:24 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/3478 |
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