Optical and dielectric studies on organic nonlinear optical 2-furoic acid single crystals

Single crystals of 2-furoic acid were grown by slow evaporation method within a period of 5 weeks at room temperature. The grown crystal was subjected to single crystal X-ray diffraction, UV–vis-NIR analysis, dielectric and surface analysis. The band gap energy is also calculated from UV studies. Theoretical calculations for polarizability which are useful for device fabrication are also made using Clausius–Mosotti equation and Penn analysis and their results are compared.