title: Synthesis, growth, crystal structure and characterization of a new organic NLO crystal: L-lysine 4-nitrophenolate monohydrate (LLPNP).
abstract: L-lysine 4-nitrophenolate monohydrate (LLPNP) has been synthesized and grown by solution growth method at room temperature using deionised water as a solvent. The crystal structure of the materials was solved by single crystal X-ray diffraction analysis and it was found that the material has orthorhombic system. The crystallinity of the grown crystals was studied by the powder X-ray diffraction analysis. Molecular structure of the grown crystal was investigated by 1H NMR spectroscopy. The various functional groups of the sample were identified by Fourier transform infrared and Fourier transform-Raman spectroscopic analyses. Thermal stability of the grown crystal has been studied by Thermogravimetric and Differential thermal (TG&DTA) analysis. The optical absorption of the grown crystals has been ascertained by UV-Vis-NIR absorption studies. Second harmonic generation (SHG) efficiency of the material has been determined by Kurtz and Perry technique and the efficiency was found to be 4.45 and 1.4 times greater than that of standard KDP and urea samples, respectively.
authors.affiliation: Department of Physics, Adhiparasakthi Engineering College, Melmaruvathur 603319, Tamil Nadu, India; Department of Physics, SRM University - Vadapalani Campus, Chennai 600026, Tamil Nadu, India.
authors.forename: M
authors.initials: M
authors.lastname: Mahadevan
authors.affiliation: Centre for Crystal Growth, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India.
authors.forename: M
authors.initials: M
authors.lastname: Magesh
authors.affiliation: Department of Physics, SRM University - Vadapalani Campus, Chennai 600026, Tamil Nadu, India.
authors.forename: K
authors.initials: K
authors.lastname: Ramachandran
authors.affiliation: Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu 432-8011, Japan; Department of Physics, Thiruvalluvar College of Engineering and Technology, Vandavasi 604505, Tamil Nadu, India. Electronic address: anandantcet@gmail.com.
authors.forename: P
authors.initials: P
authors.lastname: Anandan
authors.affiliation: Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu 432-8011, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Arivanandhan
authors.affiliation: Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu 432-8011, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Hayakawa
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D005583:Fourier Analysis; D008239:Lysine / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008422:Materials Testing; D008968:Molecular Conformation; D009596:Nitrophenols / Q000138:chemical synthesis / Q000737:chemistry; D055095:Optics and Photonics; D009930:Organic Chemicals / Q000737:chemistry; D011208:Powders; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013818:Thermogravimetry; D014508:Urea / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D009596:Nitrophenols; D009930:Organic Chemicals; D011208:Powders; D014508:Urea; D008239:Lysine; C024836:4-nitrophenol
keywords: Crystal growth; FTIR; NMR; Nonlinear optical; Thermal analyses