Crystal growth, spectral, structural and optical studies of π-conjugated stilbazolium crystal: 4-Bromobenzaldehyde-4′-N′-methylstilbazolium tosylate.

Highlights: [•] The morphology of the BMST crystal was depicted using WinXMorph program. [•] FT-IR, FT-Raman and 1H NMR assignments confirmed the functional groups of BMST. [•] Bond length alternation value was found to be 0.086Å. [•] Band gap energy and refractive index were found to be 2.96eV and 2.41 respectively. [•] Kurtz powder test confirmed that SHG intensity increases with increase in particle size. [ABSTRACT FROM AUTHOR]