title: EPR of gamma-irradiated single crystals of 2-amino-5-nitro pyridinium L-tartrate: a NLO material.
abstract: Single crystals of a non-linear optical (NLO) material 2-amino-5-nitropyridinum L-tartrate (ANPLT) were grown by solvent evaporation technique and characterized by the measurement of density, FT-IR, FT-Raman and X-ray diffraction techniques. Microhardness study and SHG test were also carried out. The EPR spectra were recorded for gamma-irradiated single crystal of ANPLT. The angular variation studies of the spectra were carried out and the principal values of g- and A-tensors were determined. The site symmetry of the radical formed is axial.
authors.affiliation: V.D.P. College, Nagapattinam 611001, India.
authors.forename: S
authors.initials: S
authors.lastname: Manikandan
authors.forename: S
authors.initials: S
authors.lastname: Dhanuskodi
mesh_terms: D000631:Aminopyridines / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D005720:Gamma Rays; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D011726:Pyridinium Compounds / Q000737:chemistry*; D013053:Spectrophotometry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013644:Tartrates / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: C522485:2-amino-5-nitropyridine; D000631:Aminopyridines; D011726:Pyridinium Compounds; D013644:Tartrates