Solution Growth and Characterization of 4-Carboxyanilinium Tartrate Single Crystal

Background and Objective: The organic compound of 4-carboxyaniline has UV absorption and antifibrotic properties. It was naturally found in Streptomyces griseus, Synechococcus elongatus and other organisms. In this study, an effort was made to the growth of the 4-carboxyaniline derivative crystal with tartaric acid using the solution growth technique. Materials and Methods: The 4-carboxyanilinium tartrate crystal was grown from a slow evaporation technique in an aqueous ethanol solution at room temperature. The grown crystal was characterized by single crystal XRD, powder XRD, FT-IR, FT-Raman, UV-visible spectroscopy, SEM with EDX and antibacterial activity studies. Result: The monoclinic crystal system and P21 space group was confirmed from the single crystal XRD study. The diffraction peaks were indexed using INDX software. The average crystalline size was determined as 55 nm. All the wavenumber assignments were exactly matched with recently reported corresponding compounds. From the optical absorbance data, the band gap was determined as 3.75 eV using Tauc’s plot. The well-defined shape of the crystal was confirmed by the SEM micrographs. Bacillus subtilis and Acinetobacter baumannii exhibited the highest zone of inhibition towards the grown crystal than Escherichia coli. Conclusion: The finding result of this study supports the previous knowledge of the structural and biological assortment of 4-carboxyanilium tartrate complex crystals.