title: Synthesis, crystal growth and physiochemical characterization of organic NLO crystal: L-ornithinium dipicrate (LODP).
abstract: L-ornithinium dipicrate (LODP) has been synthesized and good quality single crystals were grown by slow evaporation method at room temperature. Single crystal XRD confirms that the grown crystal belongs to the monoclinic system with the noncentrosymmetric space group P21. Powder X-ray diffraction study confirms the crystalline nature of the compound. FTIR spectral analysis confirms the functional group in the synthesized compound. Thermogravimetric and differential thermal analyses reveal the thermal stability of the crystal. The optical absorption spectrum shows the absence of absorption between 475 nm and 800 nm. The dielectric measurements were carried out to estimate the dielectric parameters of the grown crystal in the frequency range from 50 Hz to 5 MHz at various temperatures. The second harmonic property has been investigated by Kurtz-Perry powder technique. The relative SHG efficiency of LODP is found to be 14.57 times greater than that of the reference material KDP.
authors.affiliation: Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore 641 020, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Balaprabhakaran
authors.affiliation: Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore 641 020, Tamil Nadu, India. Electronic address: jchandaravind@yahoo.com.
authors.forename: J
authors.initials: J
authors.lastname: Chandrasekaran
authors.affiliation: Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore 641 020, Tamil Nadu, India.
authors.forename: B
authors.initials: B
authors.lastname: Babu
authors.affiliation: Department of Physics, School of Physics, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Thirumurugan
authors.affiliation: Department of Physics, School of Physics, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India.
authors.forename: K
authors.initials: K
authors.lastname: Anitha
mesh_terms: D003460:Crystallization; D018360:Crystallography, X-Ray; D004055:Differential Thermal Analysis; D008958:Models, Molecular; D055620:Optical Phenomena; D010851:Picrates / Q000138:chemical synthesis / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry
chemical_list: C000600064:L-ornithinium dipicrate; D010851:Picrates
keywords: Crystal growth; Dielectric materials; Nonlinear optics; Thermal analysis; X-ray diffraction