title: Crystal growth, structural, thermal and mechanical behavior of l-arginine 4-nitrophenolate 4-nitrophenol dihydrate (LAPP) single crystals.
abstract: Single crystals of l-arginine 4-nitrophenolate 4-nitrophenol dihydrate (LAPP) have been grown successfully from the solution of l-arginine and 4-nitrophenol. Slow evaporation of solvent technique was adopted to grow the bulk single crystals. Single crystal X-ray diffraction analysis confirms the grown crystal has monoclinic crystal system with space group of P21. Powder X-ray diffraction analysis shows the good crystalline nature. The crystalline perfection of the grown single crystals was analyzed by HRXRD by employing a multicrystal X-ray diffractometer. The functional groups were identified from proton NMR spectroscopic analysis. Linear and nonlinear optical properties were determined by UV-Vis spectrophotometer and Kurtz powder technique respectively. It is found that the grown crystal has no absorption in the green wavelength region and the SHG efficiency was found to be 2.66 times that of the standard KDP. The Thermal stability of the crystal was found by obtaining TG/DTA curve. The mechanical behavior of the grown crystal has been studied by Vicker's microhardness method.
authors: Department of Physics, Adhiparasakthi Engineering College, Melmaruvathur 603319, India; Department of Physics, SRM University, Vadapalani Campus, Chennai 600026, India.
authors: M
authors: M
authors: Mahadevan
authors: Department of Physics, SRM University, Vadapalani Campus, Chennai 600026, India. Electronic address: ramach76@yahoo.com.
authors: K
authors: K
authors: Ramachandran
authors: Research Institute of Electronics, Shizuoka University, Johoku, Naka-Ku, Hamamatsu 432-8011, Japan; Department of Physics, Thiruvalluvar College of Engineering and Technology, Vandavasi 604505, India.
authors: P
authors: P
authors: Anandan
authors: Research Institute of Electronics, Shizuoka University, Johoku, Naka-Ku, Hamamatsu 432-8011, Japan.
authors: M
authors: M
authors: Arivanandhan
authors: Materials Characterization Division, National Physical Laboratory, New Delhi 110012, India.
authors: G
authors: G
authors: Bhagavannarayana
authors: Research Institute of Electronics, Shizuoka University, Johoku, Naka-Ku, Hamamatsu 432-8011, Japan.
authors: Y
authors: Y
authors: Hayakawa
mesh_terms: D001120:Arginine / Q000737:chemistry*; D003460:Crystallization; D018360:Crystallography, X-Ray; D004055:Differential Thermal Analysis; D006244:Hardness; D062385:Hydroxybenzoates / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D009596:Nitrophenols / Q000737:chemistry*; D013818:Thermogravimetry
chemical_list: D062385:Hydroxybenzoates; D009596:Nitrophenols; D001120:Arginine; C017616:phenolic acid; C024836:4-nitrophenol
keywords: Crystal growth; Hardness; Nonlinear optical material; Proton NMR; Thermal analysis