Crystallization and characterization of nonlinear optical l-histidinium dihydrogen orthophosphate orthophosporic acid single crystal

摘要

L-histidinium dihydrogen orthophosphate orthophosporic acid (abbreviated as LHP) with molecular formula C6H10N3O2 center dot+H2PO4 center dot-H3PO4 was successfully grown by slow evaporation technique from aqueous solution. The crystal was characterized by X-ray diffractometry (XRD), UV-Vis-NIR, TGA, DTA, microhardness and solubility studies. The dielectric constant and dielectric loss of the crystal were studied as function of frequency. Photoconductivity studies were also carried out on the sample. The SHG efficiency of the crystal is studied using the Kurtz and Perry technique. (C) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.