Investigation on growth, optical and thermal properties of stilbazolium derivative crystal: 4-N,N-dimethylamino-4′-N′-methylstilbazolium 2,4-dimethylbenzenesulfonate

Abstract

Metathesis ionic exchange reaction process was used to synthesize a novel nonlinear optical material: 4-N,N-dimethylamino-4 -N -methylstilbazolium 2,4-dimethylbenzenesulfonate (DSDMS). The growth of DSDMS single crystals was carried out by adopting the solution growth technique. The crystal perfection and lattice parameters were elucidated from single XRD and powder XRD, respectively and its morphology was interpreted by WinXMorph program. FT-IR and Raman spectral analyses confirmed the existence of functional groups and their corresponding vibrational modes. UV-Vis spectral studies revealed the optical transmission region. Mechanical stability of the crystal was determined from Vickers microhardness number H v , Meyer's index n and elastic stiffness constant C 11 . Dielectric and thermal behavior of the grown crystal were elucidated by using impedance analyser and thermogravimetric analysis.

Analysis of the growth and physicochemical properties of the newly developed stilbazolium derivative 4-N,N-dimethylamino-4-N-methyl stilbazolium 2-formyl benzene sulfonate (DSFS) single crystal: an effective material for nonlinear optical applications

“…66 This entire D-p-A setup tends to give larger electron density transfer within the cation structure, leading to the surge in the scale of the dipole moment, which in turn makes the molecules highly polarized and increases the non-linearity of the DSFS crystal. 63,67 Apart from this, the interaction between the stilbazolium cation and the SO 3 ligand in the anion also induces non-linearity in the title crystal. 33 All the results attained from the Z scan analysis suggests that the ionic DSFS crystal can be used in optical limiting and switching applications.…”