Growth, Thermal, Spectroscopic, and Optical Studies of l -Alaninium Maleate, a New Organic Nonlinear Optical Material

l -Alaninium maleate (C 3 H 8 NO 2 + C 4 H 3 O 4 - ), a new organic nonlinear optical (NLO) material, is synthesized. Optical behavior such as UV−visible−NIR absorption spectra and second harmonic generation (SHG) were investigated to explore the NLO characteristics of the material for the first time. Thermal analysis and Fourier transform infrared (FTIR) spectroscopic studies of the specimen were also conducted. Characterization of the crystals was made using single-crystal X-ray diffraction and density determinations.