Growth, thermal, mechanical, structural and optical properties of organic NLO crystals of novel cis-2,6-bis(2-chlorophenyl)-3,3-dimethylpiperidin-4-one

•r-2,c-6-Bis (2-chlorophenyl)-c-3,t-3-dimethylpiperidin-4-one is a new class of organic NLO material.•This crystal has important characteristics of thermal and mechanical properties.•Non-centro symmetric crystal crystallizes in monoclinic space group P21.•SHG efficiency of the crystal was found to be 3.83 times greater than that of KDP.

An organic NLO material viz., cis-2,6-bis(2-chlorophenyl)-3,3-dimethylpiperidin-4-one (2C3DMPO), has been synthesized and a slow evaporation technique was applied to produce a single crystal. X-ray diffraction study on the single crystal 2C3DMPO reveals a non-centro symmetric crystal, possessing a monoclinic space group P21 and prefers to adopt a chair conformation. The crystal has been characterised using UV, FT-IR and NMR spectral studies. Solubility study and mechanical study using micro hardness methods have also been carried out. Furthermore, the thermal stability of the crystal was established by TG/DTA. The second harmonic conversion efficiency of the crystal was determined using the Kurtz and Perry powder technique and the activity observed was 3.83 times greater than that of KDP.

Graphical abstractcis-2,6-Bis(2-chlorophenyl)-3,3-dimethylpiperidin-4-one (2C3DMPO), crystal has been grown using slow evaporation technique. Single crystal X-ray diffraction study of 2C3DMPO was carried out. UV–Vis, FT-IR and NMR spectral studies have been used for the characterisation of the crystal. The thermal stability of the crystal was established by TG/DTA. The SHG efficiency of the crystal was found to be 3.83 times greater than that of KDP.Figure optionsDownload full-size imageDownload as PowerPoint slide