Growth, spectral, dielectric and antimicrobial studies on 4-piperidinium carboxylamide picrate crystals

•The nonlinear optical property of the compound was measured.•The compound shows good inhibition efficiency.•The mechanical study shows the compound belongs to soft material.•Dielectric studies indicate the grown crystal can be used as a NLO material.

Single crystal of 4-piperidinium carboxylamide picrate was grown by slow evaporation solution growth technique at ambient temperature. The average dimensions of grown crystal were 0.7 × 0.3 × 0.2 cm3. The solubility of the compound was analyzed using methanol and acetone. Optical property of the compound was ascertained by UV–visible absorption spectral study. The sharp and well defined Bragg peaks observed in the powder X-ray diffraction pattern confirm its crystallinity. The different kinds of protons and carbons in the compound were confirmed by 1H and 13C NMR spectral analyses. The presence of various functional groups in the compound was assigned through polarized Raman spectral study. The mechanical property of the crystal was measured by Vicker’s microhardness test and the compound was found to be soft material. The dielectric constant and dielectric loss of the crystal decrease with increase in frequency. The antibacterial and antifungal activities of the crystal were studied by disc diffusion method and found that the compound shows good inhibition efficiency against various bacteria and fungi species.

Graphical abstractSingle crystal of 4-piperidinium carboxylamide picrate was grown by slow evaporation solution growth technique at ambient temperature. Optical property of the compound was ascertained by UV–visible absorption spectral study. The powder X-ray diffraction pattern confirms crystalline nature of the compound. The different kinds of protons and carbons in the compound were confirmed by 1H and 13C NMR spectral analyses. The presence of various functional groups in the compound was assigned through polarized Raman spectral study. The Vicker’s microhardness test indicates that the compound was found to be soft material. The dielectric constant and dielectric loss of the crystal decrease with increase in frequency. The compound shows good antibacterial and antifungal inhibition efficiency against various bacteria and fungi species.Figure optionsDownload full-size imageDownload as PowerPoint slide