Synthesis, growth, crystalline perfection of 4-bromo-4′dimethylamino benzylideneaniline (BDMABA) and photons absorption of BDMABA crystal

One of the Schiff base 4-bromo-4′dimethylamino benzylideneaniline (BDMABA) compounds was synthesized and single crystal of the material was grown by solvent evaporation method at room temperature. Molecular structure of BDMABA was confirmed by 1H nuclear magnetic resonance and the presence of functional groups was confirmed by Fourier Transform Infrared and Fourier Transform Raman spectral analyses. Cell parameters were determined using single crystal X-ray diffraction analysis and crystalline perfection of the grown BDMABA crystal was evaluated using high-resolution X-ray diffraction analysis. Thermal analyses indicated that the material is thermally stable up to 215 °C and its melting point is 161.5 °C. Vickers microhardness study was carried out to estimate the mechanical hardness of BDMABA crystal which shows that the crystal belongs to the class of soft materials. Linear and nonlinear optical studies were carried out using UV–vis-NIR spectrum and open aperture Z-scan technique respectively.

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► Single crystal of BDMABA was grown by solvent evaporation method from synthesized compound.
► Formation of BDMABA was confirmed by NMR, FTIR, FT Raman and XRD techniques.
► HRXRD revealed that BDMABA crystal is free from structural grain boundaries.
► The effective two-photon absorption coefficient (β) of the material obtained is 9.2 × 10−12 m/W.