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Synthesis,growth of single crystals and their characterization: l-Alaninium maleate (LAM) |
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| Authors: | N Vijayan G Bhagavannarayana KK Maurya SN Sharma R Gopalakrishnan J Jayabharathi P Ramasamy |
| Institution: | 1. National Physical Laboratory (CSIR), New Delhi 110 012, India;2. Electronic Materials Division, National Physical Laboratory, New Delhi 110 012, India;3. Dept. of Physics, Anna University, Chennai 600 025, India;4. Dept. of Chemistry, Annamalai University, Chidambaram 608 002, India;5. SSN College of Engineering, Kalavakkam, Chennai 603 110, India |
| Abstract: | In recent days amino acid single crystals are gaining importance due to good optical behavior. The title compound consists of l-alanine; an amino acid and maleic acid; an aromatic organic compound. It has been successfully synthesized and the single crystal has been grown by slow evaporation solution growth. The grown single crystal has been characterized by powder X-ray diffraction (PXRD) analysis and FTIR measurements. The crystalline perfection was examined by high-resolution X-ray diffraction (HRXRD) technique and found that the specimen quality is quite good. Optical behavior has been assessed by UV–Vis analysis and found that there is no absorption in the entire visible region. The relative second harmonic generation (SHG) efficiency measurement reveals that the incorporation of maleic acid to l-alanine leads to increase its value of SHG. The mechanical behavior and the thermal analysis have been carried out using Vickers microhardness and TG/DTA measurements respectively. Its hyperpolarizability was estimated by density functional theory (DFT). |
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