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<p>L-leucinium tartrate salt was newly synthesized by mixing L-leucine and tartaric acid in a 1:1 molar ratio. A highly transparent single crystal of L-leucinium tartrate (LLT) was grown by slow evaporation solution technique. After the growth period of 32 days, the grown crystal was harvested for analysis. Single crystal X-ray diffraction (XRD) analysis showed that the grown LLT crystal belongs to a monoclinic structure with the space group P1. The presence of functional groups in the grown crystal was identified by the Fourier transform infrared (FTIR) spectrometer in the range of 400–4000 cm<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="12596_2025_2934_Article_IEq1.gif" Format="GIF" Height="11" Rendition="HTML" Resolution="72" Type="Linedraw" Width="18" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{-1}\)</EquationSource> </InlineEquation>. The UV-visible and fluorescence studies calculated the optical parameters such as transmittance, absorption coefficient, and bandgap energy. The nonlinear behavior of the grown crystal was confirmed by the Kurtz Perry powder technique and its second harmonic generation efficiency is 1.41 compared with some other NLO crystals. Atomic Force Microscopic (AFM) Spectrum was recorded, providing a three-dimensional surface profile of a grown crystal. From AFM results, it is found that the crystal has a good morphology, which ensures the grown crystal suitable for fabricating of devices in the area of optics, photonics, electronics and magnetism. Laser damage threshold study reveals that grown crystal possesses a higher damage threshold than some other organic crystals.</p>

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Synthesis, growth, structural and optical behaviour of L-leucinium tartrate single crystal

  • 期刊论文

  • 发表日期：

    2025年10月30日

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  • B. Deepa

摘要

L-leucinium tartrate salt was newly synthesized by mixing L-leucine and tartaric acid in a 1:1 molar ratio. A highly transparent single crystal of L-leucinium tartrate (LLT) was grown by slow evaporation solution technique. After the growth period of 32 days, the grown crystal was harvested for analysis. Single crystal X-ray diffraction (XRD) analysis showed that the grown LLT crystal belongs to a monoclinic structure with the space group P1. The presence of functional groups in the grown crystal was identified by the Fourier transform infrared (FTIR) spectrometer in the range of 400–4000 cm \({}^{-1}\) . The UV-visible and fluorescence studies calculated the optical parameters such as transmittance, absorption coefficient, and bandgap energy. The nonlinear behavior of the grown crystal was confirmed by the Kurtz Perry powder technique and its second harmonic generation efficiency is 1.41 compared with some other NLO crystals. Atomic Force Microscopic (AFM) Spectrum was recorded, providing a three-dimensional surface profile of a grown crystal. From AFM results, it is found that the crystal has a good morphology, which ensures the grown crystal suitable for fabricating of devices in the area of optics, photonics, electronics and magnetism. Laser damage threshold study reveals that grown crystal possesses a higher damage threshold than some other organic crystals.