Growth and characterizations of L-methioninium picrate single crystal for nonlinear optical applications

Abstract

An organic nonlinear optical (NLO) single crystal of L-methioninium picrate (LMP) has been grown by slow evaporation solution technique (SEST) at a constant temperature of [Formula: see text]C. Formation of nucleation and growth kinetics of the crystal were observed using an optical microscope for different durations and it was found that the shape of nucleation is similar to the grown large size single crystals of the same material. The characterization techniques such as powder X-ray diffraction (PXRD) analysis, UV–Vis NIR, Vickers microhardness, piezoelectric d[Formula: see text] coefficient, photoconductivity and etching studies have been performed. The crystal system and lattice parameters of the grown crystal were determined by PXRD analysis. The spectroscopic properties of the synthesized compound were confirmed by Fourier transform infrared (FTIR) analysis. The UV–Vis NIR analysis was performed on the grown single crystal to find the optical absorption in the entire visible region. Attempts have been made to investigate the mechanical properties of LMP crystal using Vickers diamond pyramid indenter. In addition piezoelectric, photoconductivity and etching studies were carried out to study the d[Formula: see text] coefficient, photoconducting nature and surface properties respectively.

Syntheses of Methylene‐bridged Symmetric Bisimidazolium Picrates as High‐energetic Salts

“…As an electron acceptor, the picrate anion may form charge‐transfer molecular complexes with some electron‐donor cation heterocyclic moieties through hydrogen bonding, π–π interactions, and electrostatic interactions. Many organic and inorganic picrate salts have been prepared and studied as energetic materials and optical functional materials . However, none of these salts consist of an azo‐group, diazolium cations, and dipicrate anions.…”

Studies on growth and characterization of nicotinium tartrate single crystal: An efficient organic nonlinear optical material

“…The NLO materials, capable of efficient frequency conversion of infrared laser radiation into visible or ultraviolet wavelengths are of substantial interest for various applications such as high optical data storage, color displays, medical diagnostics, optical telecommunication, scintillator and piezoelectric. [2][3][4][5][6][7][8] Some of the tartaric acid-based complexes reported in the recent past are L-prolinium tartrate, 9 hydroxyethylammonium-L-tartrate monohydrate and D-tartrate, 10 L-tartaric acid-nicotinamide 11 and p-nitroaniline-L-tartaric acid. 12 Since L-tartaric acid has higher solubility in water, it could be crystallized into bigger sizes and in another way it reduces the production costs in comparison with all other amino acid materials.…”