Synthesis, growth, structural, optical, thermal, dielectric and mechanical studies of piperidinium p-nitrophenolate single crystals

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• 作者：N. Swarna Sowmya^a ; S. Sampathkrishnan^a ; S. Sudhahar^b ; M. Krishna Kumar^c ; R. Mohan Kumar^d ; ^{mohan66@hotmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Crystal growth ; X-ray diffraction ; Optical materials ; Dielectrics ; NLO material
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：127
• 期：5
• 页码：3024-3029
• 全文大小：1120 K

文摘

A novel single crystal of piperidinium p-nitrophenolate (PPNP) was successfully grown by slow evaporation solution growth technique at constant temperature (308 K) with dimension 40 × 5 × 3 mm³. The structure parameters of grown crystal were confirmed from single crystal X-ray diffraction studies. Infrared, Raman and NMR spectral analyses were used to elucidate the functional groups present in the compound. UV–vis spectral studies indicate that the grown crystal is transparent in the entire visible region with a lower cut off wavelength of 505 nm. Photoluminescence spectral study revealed the transition mechanism of ions. Thermal analysis was carried out to study the thermal behavior of PPNP crystal. The powder second harmonic generation test confirmed the nonlinear optical behavior of grown crystal. The dielectric loss and dielectric constant as a function of frequency and temperature were measured for the grown crystal. The mechanical strength of the crystal was estimated by Vicker's hardness test.