Growth and characterizations of a new semiorganic nonlinear optical material thiourea potassium hydrogen phthalate for NLO applications

Investigation on Synthesis, Growth, Structural and Optical Properties of a New Semiorganic Crystal 2-Aminopyridine Potassium Hydrogen Phthalate (2APKHP)

“…Thus the XRD results confirms the incorporation of potassium hydrogen phthalate in 2-aminopyridine. From the single crystal XRD study of 2APKHP, there is a slight variation in lattice parameters and there is no change in crystal system in replacing 2-aminopyridine instead of thiourea in potassium hydrogen phthalate which is already reported [20]. From the table 1, the change of lattice parameter and structure indicates the presence of potassium hydrogen phthalate in 2-aminopyridine.…”

“…Monaco et.al, have reported the formation of 1:1 molecular compounds between amino acid and many different acids [15][16][17][18][19]. Potassium hydrogen phthalate crystals are playing an important role in the field of nonlinear optic materials, they are known SHG material that have long stability in devices due to their electro-optic properties and exhibit interesting in piezoelectric, pyroelectric and elastic properties that are useful in many applications [20][21][22][23]. Pyridine is a heterocyclic organic compound with the chemical formula C 5 H 5 N. Intensive studies on pyridine and pyridine derivatives have been made in the past, keeping in the view of their industrial importance both as fundamental building block and reagent in organic synthesis [24].…”