Crystal structure,vibrational, and optical investigations of semiorganic nonlinear optical crystal: Bi3[CS(NH2)2]9Cl9· 2H2O

Tribismuthnonakisthioureanonachloride dihydrate (TBNTNC), a semiorganic nonlinear optical (NLO) material useful for frequency doubling in the IR region, has been grown by single diffusion gel technique. The grown crystal was confirmed by single crystal XRD and it crystallizes in triclinic system having P₁ space group. Vibrational analysis was carried out for the grown crystal. FTIR and FT‐Raman spectral studies were performed for analyzing and assigning the phonon vibrations and to identify the functional group contribution. The optical transmission study was carried out to examine the transmission ability of the crystal. The nonlinear optical property was confirmed by relative second harmonic generation measurement using Nd:YAG laser. Copyright © 2009 John Wiley & Sons, Ltd.