title: Synthesis, growth, structural, optical, spectral, thermal and mechanical studies of 4-methoxy 4-nitrostilbene (MONS): a new organic nonlinear optical single crystal.
abstract: 4-Methoxy 4-nitrostilbene (MONS), a new organic nonlinear optical material has been synthesized. Based on the solubility data good quality single crystal with dimensions up to 38×11×3 mm(3) has been grown by slow evaporation method using ethyl methyl ketone (MEK) as a solvent. Powder XRD confirms the crystalline property and also the diffraction planes have been indexed. The lattice parameters for the grown MONS crystals were determined by using single crystal X-ray diffraction analysis and it reveals that the crystal lattice system is triclinic. The crystalline perfection of the grown crystals has been analysed by high resolution X-ray diffraction (HRXRD) rocking curve measurements. Fourier transform infrared (FTIR) spectrum for powdered MONS sample confirms the functional groups present in the grown crystal. The UV-vis absorption spectrum has been recorded in the range of 190-1100 nm and the cut off wavelength 499 nm has been determined. The optical constants of MONS have been determined through UV-vis-NIR spectroscopy. The MONS crystals were further subjected to other characterizations. i.e., (1)H NMR, TG/DTA, photoluminescence and microhardness test. The Kurtz and Perry powder technique confirms the NLO property of the grown crystal and the SHG efficiency of MONS was found to be 1.55× greater than that of KDP crystal.
authors.affiliation: School of Advanced Sciences, VIT University, Vellore 632 014, India.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Dinakaran
authors.forename: G
authors.initials: G
authors.lastname: Bhagavannarayana
authors.forename: S
authors.initials: S
authors.lastname: Kalainathan
mesh_terms: D003460:Crystallization; D004055:Differential Thermal Analysis; D004553:Electric Conductivity; D006244:Hardness; D007700:Kinetics; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy; D055595:Mechanical Phenomena; D017711:Nonlinear Dynamics; D055620:Optical Phenomena; D011208:Powders; D012995:Solubility; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013267:Stilbenes / Q000138:chemical synthesis* / Q000737:chemistry*; D013696:Temperature; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: C578303:4-methoxy 4-nitrostilbene; D011208:Powders; D013267:Stilbenes