To cite this article: Uma Devi, T. et al. (2017). Synthesis, crystal growth, vibrational spectral analysis, optical thermal and antimicrobial properties of guanidinium oxalate monohydrate single crystal. J. Phys. Sci., 28(2), 31–57, https://doi.org/10.21315/jps2017.28.2.3
Crystals of guanidinium oxalate monohydrate (GUOM), a salt of a functional guanidine derivative, crystallising with the space group of P21/c, is synthesised and characterised by single-crystal XRD, NMR, UV-Vis and vibrational spectroscopy. The assignment of spectral bands is carried out in terms of the fundamental modes of vibration of the guanidinium cation and oxalate anion. Thermal analysis (TG/DTA) indicates that the compound is thermally robust. GUOM also exhibits antimicrobial activity against a few microorganisms.