Abstract:
The author of a paper titled, "Growth, optical, mechanical and electrical studies of nonlinear optical single crystal: potassium para-nitrophenolate dihydrate" in Science Postprint (2014) (http://www.spp-j.com/spp/1-1/spp.2014.07A0001/) reports to have grown a nonlinear optical (NLO) single crystal namely potassium para-nitrophenolate dihydrate 1 by the slow evaporation technique. Many points of criticism, concerning the crystal growth and characterization of this so called NLO crystal, are highlighted in this comment to show that the paper reporting this crystal is completely erroneous.
